Merge remote-tracking branch 'upstream/master'

Signed-off-by: Pierre-Nicolas Clauss <pinicarus@protonmail.com>

85 files changed, 2050 insertions, 81 deletions

diff --git a/test/command_callback/inko_paths/test.inko b/test/command_callback/inko_paths/test.inko
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/inko_paths/test.inko
diff --git a/test/command_callback/inko_paths/tests/test/test_foo.inko b/test/command_callback/inko_paths/tests/test/test_foo.inko
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/inko_paths/tests/test/test_foo.inko
diff --git a/test/command_callback/php-intelephense-project/with-composer/composer.json b/test/command_callback/php-intelephense-project/with-composer/composer.json
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/php-intelephense-project/with-composer/composer.json
diff --git a/test/command_callback/python_paths/with_virtualenv/env/Scripts/autoimport.exe b/test/command_callback/python_paths/with_virtualenv/env/Scripts/autoimport.exe
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/python_paths/with_virtualenv/env/Scripts/autoimport.exe
diff --git a/test/command_callback/python_paths/with_virtualenv/env/Scripts/yamlfix.exe b/test/command_callback/python_paths/with_virtualenv/env/Scripts/yamlfix.exe
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/python_paths/with_virtualenv/env/Scripts/yamlfix.exe
diff --git a/test/command_callback/python_paths/with_virtualenv/env/bin/autoimport b/test/command_callback/python_paths/with_virtualenv/env/bin/autoimport
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/python_paths/with_virtualenv/env/bin/autoimport
diff --git a/test/command_callback/python_paths/with_virtualenv/env/bin/yamlfix b/test/command_callback/python_paths/with_virtualenv/env/bin/yamlfix
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/python_paths/with_virtualenv/env/bin/yamlfix
diff --git a/test/command_callback/r_paths/.Rprofile b/test/command_callback/r_paths/.Rprofile
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/r_paths/.Rprofile
diff --git a/test/command_callback/spectral_paths/node_modules/.bin/spectral b/test/command_callback/spectral_paths/node_modules/.bin/spectral
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/spectral_paths/node_modules/.bin/spectral
diff --git a/test/command_callback/spectral_paths/openapi.yaml b/test/command_callback/spectral_paths/openapi.yaml
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/command_callback/spectral_paths/openapi.yaml
diff --git a/test/command_callback/test_adals_command_callbacks.vader b/test/command_callback/test_adals_command_callbacks.vader
new file mode 100644
index 00000000..5a04594e
--- /dev/null
+++ b/test/command_callback/test_adals_command_callbacks.vader
@@ -0,0 +1,17 @@
+Before:
+  call ale#assert#SetUpLinterTest('ada', 'adals')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(Sets adals executable):
+  let g:ale_ada_adals_executable = '/path/to /Ada'
+  AssertLinter '/path/to /Ada', ale#Escape('/path/to /Ada')
+
+Execute(Sets adals encoding):
+  let b:ale_ada_adals_encoding = 'iso-8859-1'
+  AssertLSPConfig {'ada.defaultCharset': 'iso-8859-1', 'ada.projectFile': 'default.gpr'}
+
+Execute(Sets adals project):
+  let g:ale_ada_adals_project = 'myproject.gpr'
+  AssertLSPConfig {'ada.defaultCharset': 'utf-8', 'ada.projectFile': 'myproject.gpr'}
diff --git a/test/command_callback/test_clang_tidy_command_callback.vader b/test/command_callback/test_clang_tidy_command_callback.vader
index f0a07e8c..eb1220be 100644
--- a/test/command_callback/test_clang_tidy_command_callback.vader
+++ b/test/command_callback/test_clang_tidy_command_callback.vader
@@ -68,7 +68,6 @@ Execute(The build directory should be used for header files):
   \ ale#Escape('clang-tidy')
   \   . ' -checks=' . ale#Escape('*') . ' %s'
   \   . ' -p ' . ale#Escape('/foo/bar')
-  \   . ' -- -x c++'
 
   call ale#test#SetFilename('test.hpp')
 
diff --git a/test/command_callback/test_dart_analysis_server_command_callback.vader b/test/command_callback/test_dart_analysis_server_command_callback.vader
new file mode 100644
index 00000000..1754109a
--- /dev/null
+++ b/test/command_callback/test_dart_analysis_server_command_callback.vader
@@ -0,0 +1,15 @@
+Before:
+  call ale#assert#SetUpLinterTest('dart', 'analysis_server')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The default command should be correct):
+  AssertLinter 'dart', ale#Escape('dart')
+  \   . ' ./snapshots/analysis_server.dart.snapshot --lsp'
+
+Execute(The executable should be configurable):
+  let g:ale_dart_analysis_server_executable = 'foobar'
+
+  AssertLinter 'foobar', ale#Escape('foobar')
+  \   . ' ./snapshots/analysis_server.dart.snapshot --lsp'
diff --git a/test/command_callback/test_elixir_credo.vader b/test/command_callback/test_elixir_credo.vader
index 3eb88846..b14444c6 100644
--- a/test/command_callback/test_elixir_credo.vader
+++ b/test/command_callback/test_elixir_credo.vader
@@ -38,3 +38,10 @@ Execute(Builds credo command with suggest mode when set to 0):
   AssertLinter 'mix',
   \ ale#path#CdString(ale#path#Simplify(g:dir . '/elixir_paths/mix_project'))
   \ . 'mix help credo && mix credo suggest --format=flycheck --read-from-stdin %s'
+
+Execute(Builds credo command with a custom config file):
+  let g:ale_elixir_credo_config_file = '/home/user/custom_credo.exs'
+
+  AssertLinter 'mix',
+  \ ale#path#CdString(ale#path#Simplify(g:dir . '/elixir_paths/mix_project'))
+  \ . 'mix help credo && mix credo suggest --config-file /home/user/custom_credo.exs --format=flycheck --read-from-stdin %s'
diff --git a/test/command_callback/test_erlang_elvis_command_callback.vader b/test/command_callback/test_erlang_elvis_command_callback.vader
new file mode 100644
index 00000000..4aab49d6
--- /dev/null
+++ b/test/command_callback/test_erlang_elvis_command_callback.vader
@@ -0,0 +1,16 @@
+Before:
+  let b:file = fnamemodify(bufname(''), ':.')
+  call ale#assert#SetUpLinterTest('erlang', 'elvis')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(Default command should be correct):
+  AssertLinter 'elvis',
+  \ ale#Escape('elvis') . ' rock --output-format=parsable ' . ale#Escape(b:file)
+
+Execute(Executable should be configurable):
+  let b:ale_erlang_elvis_executable = '/path/to/elvis'
+
+  AssertLinter '/path/to/elvis',
+  \ ale#Escape('/path/to/elvis') . ' rock --output-format=parsable ' . ale#Escape(b:file)
diff --git a/test/command_callback/test_fecs_command_callback.vader b/test/command_callback/test_fecs_command_callback.vader
index f70ad084..4287d324 100644
--- a/test/command_callback/test_fecs_command_callback.vader
+++ b/test/command_callback/test_fecs_command_callback.vader
@@ -1,5 +1,6 @@
 Before:
   call ale#assert#SetUpLinterTest('javascript', 'fecs')
+  runtime autoload/ale/handlers/fecs.vim
 
 After:
   call ale#assert#TearDownLinterTest()
diff --git a/test/command_callback/test_ibm_openapi_validator_command_callback.vader b/test/command_callback/test_ibm_openapi_validator_command_callback.vader
new file mode 100644
index 00000000..3484cc09
--- /dev/null
+++ b/test/command_callback/test_ibm_openapi_validator_command_callback.vader
@@ -0,0 +1,15 @@
+Before:
+  call ale#assert#SetUpLinterTest('openapi', 'ibm_validator')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The yaml ibm-openapi-validator command callback should return the correct default string):
+  AssertLinter 'lint-openapi', ale#Escape('lint-openapi') . ' %t'
+
+Execute(The yaml ibm-openapi-validator command callback should be configurable):
+  let g:ale_openapi_ibm_validator_executable = '~/.local/bin/lint-openapi'
+  let g:ale_openapi_ibm_validator_options = '-c ~/.config'
+
+  AssertLinter '~/.local/bin/lint-openapi', ale#Escape('~/.local/bin/lint-openapi')
+  \ . ' -c ~/.config %t'
diff --git a/test/command_callback/test_inko_inko_callbacks.vader b/test/command_callback/test_inko_inko_callbacks.vader
new file mode 100644
index 00000000..93295c91
--- /dev/null
+++ b/test/command_callback/test_inko_inko_callbacks.vader
@@ -0,0 +1,20 @@
+Before:
+  call ale#assert#SetUpLinterTest('inko', 'inko')
+  call ale#test#SetFilename('inko_paths/test.inko')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The default executable path should be correct):
+  AssertLinter 'inko', ale#Escape('inko') . ' build --check --format=json %s'
+
+Execute(The inko callback should include tests/ for test paths):
+  call ale#engine#Cleanup(bufnr(''))
+  noautocmd e! inko_paths/tests/test/test_foo.inko
+  call ale#engine#InitBufferInfo(bufnr(''))
+
+  AssertLinter 'inko',
+  \ ale#Escape('inko')
+  \   . ' build --check --format=json --include '
+  \   . ale#Escape(ale#path#Simplify(g:dir . '/inko_paths/tests/'))
+  \   . ' %s'
diff --git a/test/command_callback/test_julia_languageserver_callbacks.vader b/test/command_callback/test_julia_languageserver_callbacks.vader
index 3bc46e3d..96df81f1 100644
--- a/test/command_callback/test_julia_languageserver_callbacks.vader
+++ b/test/command_callback/test_julia_languageserver_callbacks.vader
@@ -11,16 +11,16 @@ After:
 Execute(The default executable path should be correct):
   AssertLinter 'julia',
   \ ale#Escape('julia') .
-  \' --startup-file=no --history-file=no -e ' .
-  \ ale#Escape('using LanguageServer; server = LanguageServer.LanguageServerInstance(isdefined(Base, :stdin) ? stdin : STDIN, isdefined(Base, :stdout) ? stdout : STDOUT, false); server.runlinter = true; run(server);')
+  \' --project=@. --startup-file=no --history-file=no -e ' .
+  \ ale#Escape('using LanguageServer; using Pkg; import StaticLint; import SymbolServer; server = LanguageServer.LanguageServerInstance(isdefined(Base, :stdin) ? stdin : STDIN, isdefined(Base, :stdout) ? stdout : STDOUT, dirname(Pkg.Types.Context().env.project_file)); server.runlinter = true; run(server);')
 
 Execute(The executable should be configurable):
   let g:ale_julia_executable = 'julia-new'
 
   AssertLinter 'julia-new',
   \ ale#Escape('julia-new') .
-  \' --startup-file=no --history-file=no -e ' .
-  \ ale#Escape('using LanguageServer; server = LanguageServer.LanguageServerInstance(isdefined(Base, :stdin) ? stdin : STDIN, isdefined(Base, :stdout) ? stdout : STDOUT, false); server.runlinter = true; run(server);')
+  \' --project=@. --startup-file=no --history-file=no -e ' .
+  \ ale#Escape('using LanguageServer; using Pkg; import StaticLint; import SymbolServer; server = LanguageServer.LanguageServerInstance(isdefined(Base, :stdin) ? stdin : STDIN, isdefined(Base, :stdout) ? stdout : STDOUT, dirname(Pkg.Types.Context().env.project_file)); server.runlinter = true; run(server);')
 
 Execute(The project root should be detected correctly):
   AssertLSPProject ''
diff --git a/test/command_callback/test_php_intelephense_command_callback.vader b/test/command_callback/test_php_intelephense_command_callback.vader
new file mode 100644
index 00000000..dd6adb3d
--- /dev/null
+++ b/test/command_callback/test_php_intelephense_command_callback.vader
@@ -0,0 +1,26 @@
+Before:
+  call ale#assert#SetUpLinterTest('php', 'intelephense')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The default executable path should be correct):
+  AssertLinter 'intelephense',
+  \ ale#Escape('intelephense') . ' --stdio'
+
+Execute(The project path should be correct for .git directories):
+  call ale#test#SetFilename('php-intelephense-project/with-git/test.php')
+  silent! call mkdir('php-intelephense-project/with-git/.git', 'p')
+
+  AssertLSPProject ale#path#Simplify(g:dir . '/php-intelephense-project/with-git')
+
+Execute(The project path should be correct for composer.json file):
+  call ale#test#SetFilename('php-intelephense-project/with-composer/test.php')
+
+  AssertLSPProject ale#path#Simplify(g:dir . '/php-intelephense-project/with-composer')
+
+Execute(The project cache should be saved in a temp dir):
+  call ale#test#SetFilename('php-intelephense-project/with-composer/test.php')
+  let g:ale_php_intelephense_config = { 'storagePath': '/tmp/intelephense' }
+
+  AssertLSPProject ale#path#Simplify(g:dir . '/php-intelephense-project/with-composer')
diff --git a/test/command_callback/test_r_languageserver_callbacks.vader b/test/command_callback/test_r_languageserver_callbacks.vader
new file mode 100644
index 00000000..9a4a1f87
--- /dev/null
+++ b/test/command_callback/test_r_languageserver_callbacks.vader
@@ -0,0 +1,22 @@
+Before:
+  call ale#assert#SetUpLinterTest('r', 'languageserver')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The default executable path should be correct):
+  AssertLinter 'Rscript', 'Rscript --vanilla -e ' . ale#Escape('languageserver::run()')
+
+Execute(The project root should be detected correctly):
+  AssertLSPProject '.'
+
+  call ale#test#SetFilename('r_paths/dummy/test.R')
+
+  AssertLSPProject ale#path#Simplify(g:dir . '/r_paths')
+
+Execute(Should accept configuration settings):
+  AssertLSPConfig {}
+
+  let b:ale_r_languageserver_config = {'r': {'lsp': {'debug': 'true', 'diagnostics': 'true'}}}
+
+  AssertLSPConfig {'r': {'lsp': {'debug': 'true', 'diagnostics': 'true'}}}
diff --git a/test/command_callback/test_rust_analyzer_callbacks.vader b/test/command_callback/test_rust_analyzer_callbacks.vader
index 95866076..efab1378 100644
--- a/test/command_callback/test_rust_analyzer_callbacks.vader
+++ b/test/command_callback/test_rust_analyzer_callbacks.vader
@@ -16,5 +16,5 @@ Execute(The project root should be detected correctly):
 
 Execute(Should accept configuration settings):
   AssertLSPConfig {}
-  let b:ale_rust_analyzer_config = {'rust': {'clippy_preference': 'on'}}
-  AssertLSPConfig {'rust': {'clippy_preference': 'on'}}
+  let b:ale_rust_analyzer_config = {'diagnostics': {'disabled': ['unresolved-import']}}
+  AssertLSPOptions {'diagnostics': {'disabled': ['unresolved-import']}}
diff --git a/test/command_callback/test_sorbet_command_callback.vader b/test/command_callback/test_sorbet_command_callback.vader
index b46e90a4..fe758635 100644
--- a/test/command_callback/test_sorbet_command_callback.vader
+++ b/test/command_callback/test_sorbet_command_callback.vader
@@ -5,6 +5,7 @@ Before:
 
   let g:ale_ruby_sorbet_executable = 'srb'
   let g:ale_ruby_sorbet_options = ''
+  let g:ale_ruby_sorbet_enable_watchman = 0
 
 After:
   call ale#assert#TearDownLinterTest()
@@ -13,6 +14,12 @@ Execute(Executable should default to srb):
   AssertLinter 'srb', ale#Escape('srb')
   \   . ' tc --lsp --disable-watchman'
 
+Execute(Able to enable watchman):
+  let g:ale_ruby_sorbet_enable_watchman = 1
+
+  AssertLinter 'srb', ale#Escape('srb')
+  \   . ' tc --lsp'
+
 Execute(Should be able to set a custom executable):
   let g:ale_ruby_sorbet_executable = 'bin/srb'
 
diff --git a/test/command_callback/test_spectral_command_callback.vader b/test/command_callback/test_spectral_command_callback.vader
new file mode 100644
index 00000000..ed3795b9
--- /dev/null
+++ b/test/command_callback/test_spectral_command_callback.vader
@@ -0,0 +1,31 @@
+Before:
+  call ale#assert#SetUpLinterTest('yaml', 'spectral')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The yaml spectral command callback should return the correct default string):
+  AssertLinter 'spectral', ale#Escape('spectral') . ' lint --ignore-unknown-format -q -f text %t'
+
+Execute(The yaml spectral command callback should be configurable):
+  let g:ale_yaml_spectral_executable = '~/.local/bin/spectral'
+
+  AssertLinter '~/.local/bin/spectral',
+  \ ale#Escape('~/.local/bin/spectral')
+  \   . ' lint --ignore-unknown-format -q -f text %t'
+
+Execute(The yaml spectral command callback should allow a global installation to be used):
+  let g:ale_yaml_spectral_executable = '/usr/local/bin/spectral'
+  let g:ale_yaml_spectral_use_global = 1
+
+  AssertLinter '/usr/local/bin/spectral',
+  \ ale#Escape('/usr/local/bin/spectral')
+  \   . ' lint --ignore-unknown-format -q -f text %t'
+
+Execute(The yaml spectral command callback should allow a local installation to be used):
+  call ale#test#SetFilename('spectral_paths/openapi.yaml')
+
+  AssertLinter
+  \ ale#path#Simplify(g:dir . '/spectral_paths/node_modules/.bin/spectral'),
+  \ ale#Escape(ale#path#Simplify(g:dir . '/spectral_paths/node_modules/.bin/spectral'))
+  \   . ' lint --ignore-unknown-format -q -f text %t'
diff --git a/test/command_callback/test_typescript_deno_lsp.vader b/test/command_callback/test_typescript_deno_lsp.vader
new file mode 100644
index 00000000..01cbc851
--- /dev/null
+++ b/test/command_callback/test_typescript_deno_lsp.vader
@@ -0,0 +1,60 @@
+Before:
+  let g:ale_deno_unstable = 0
+  let g:ale_deno_executable = 'deno'
+  let g:ale_deno_project_root = ''
+
+  runtime autoload/ale/handlers/deno.vim
+  call ale#assert#SetUpLinterTest('typescript', 'deno')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(Should set deno lsp for TypeScript projects using stable Deno API):
+  AssertLSPLanguage 'typescript'
+  AssertLSPConfig {}
+  AssertLSPProject ale#path#Simplify(g:dir . '/../..')
+  AssertLSPOptions {
+  \   'enable': v:true,
+  \   'lint': v:true,
+  \   'unstable': v:false
+  \}
+
+Execute(Should set deno lsp using unstable Deno API if enabled by user):
+  let g:ale_deno_unstable = 1
+  AssertLSPLanguage 'typescript'
+  AssertLSPConfig {}
+  AssertLSPProject ale#path#Simplify(g:dir . '/../..')
+  AssertLSPOptions {
+  \   'enable': v:true,
+  \   'lint': v:true,
+  \   'unstable': v:true
+  \}
+
+Execute(Should find project root containing tsconfig.json):
+  call ale#test#SetFilename('../typescript/test.ts')
+  AssertLSPLanguage 'typescript'
+  AssertLSPConfig {}
+  AssertLSPProject ale#path#Simplify(g:dir . '/../typescript')
+  AssertLSPOptions {
+  \   'enable': v:true,
+  \   'lint': v:true,
+  \   'unstable': v:false
+  \}
+
+Execute(Should use user-specified project root):
+  let g:ale_deno_lsp_project_root = '/'
+
+  call ale#test#SetFilename('../typescript/test.ts')
+  AssertLSPLanguage 'typescript'
+  AssertLSPConfig {}
+  AssertLSPProject '/'
+  AssertLSPOptions {
+  \   'enable': v:true,
+  \   'lint': v:true,
+  \   'unstable': v:false
+  \}
+
+Execute(Check Deno LSP command):
+  AssertLinter 'deno', [
+  \ ale#Escape('deno') . ' lsp',
+  \]
diff --git a/test/command_callback/test_xo_command_callback.vader b/test/command_callback/test_xo_command_callback.vader
index 65cb4f8a..1aa4c3f1 100644
--- a/test/command_callback/test_xo_command_callback.vader
+++ b/test/command_callback/test_xo_command_callback.vader
@@ -1,8 +1,11 @@
 Before:
-  call ale#assert#SetUpLinterTest('typescript', 'xo')
-  call ale#test#SetFilename('testfile.ts')
+  call ale#assert#SetUpLinterTest('javascript', 'xo')
+  call ale#test#SetFilename('testfile.jsx')
   unlet! b:executable
 
+  set filetype=javascriptreact
+  runtime autoload/ale/handlers/xo.vim
+
 After:
   call ale#assert#TearDownLinterTest()
 
@@ -10,11 +13,11 @@ Execute(The XO executable should be called):
   AssertLinter 'xo', ale#Escape('xo') . ' --reporter json --stdin --stdin-filename %s'
 
 Execute(The XO executable should be configurable):
-  let b:ale_typescript_xo_executable = 'foobar'
+  let b:ale_javascript_xo_executable = 'foobar'
 
   AssertLinter 'foobar', ale#Escape('foobar') . ' --reporter json --stdin --stdin-filename %s'
 
 Execute(The XO options should be configurable):
-  let b:ale_typescript_xo_options = '--wat'
+  let b:ale_javascript_xo_options = '--wat'
 
   AssertLinter 'xo', ale#Escape('xo') . ' --wat --reporter json --stdin --stdin-filename %s'
diff --git a/test/command_callback/test_xots_command_callback.vader b/test/command_callback/test_xots_command_callback.vader
new file mode 100644
index 00000000..cc38ff02
--- /dev/null
+++ b/test/command_callback/test_xots_command_callback.vader
@@ -0,0 +1,23 @@
+Before:
+  call ale#assert#SetUpLinterTest('typescript', 'xo')
+  call ale#test#SetFilename('testfile.tsx')
+  unlet! b:executable
+
+  set filetype=typescriptreact
+  runtime autoload/ale/handlers/xo.vim
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(The XO executable should be called):
+  AssertLinter 'xo', ale#Escape('xo') . ' --reporter json --stdin --stdin-filename %s'
+
+Execute(The XO executable should be configurable):
+  let b:ale_typescript_xo_executable = 'foobar'
+
+  AssertLinter 'foobar', ale#Escape('foobar') . ' --reporter json --stdin --stdin-filename %s'
+
+Execute(The XO options should be configurable):
+  let b:ale_typescript_xo_options = '--wat'
+
+  AssertLinter 'xo', ale#Escape('xo') . ' --wat --reporter json --stdin --stdin-filename %s'
diff --git a/test/completion/test_lsp_completion_parsing.vader b/test/completion/test_lsp_completion_parsing.vader
index d989aefe..36228c10 100644
--- a/test/completion/test_lsp_completion_parsing.vader
+++ b/test/completion/test_lsp_completion_parsing.vader
@@ -40,6 +40,7 @@ Execute(Should handle Rust completion results correctly):
   \   {'word': 'from', 'menu': 'fn from(s: &''a str) -> String', 'info': '', 'kind': 'f', 'icase': 1, 'user_data': json_encode({'_ale_completion_item': 1})},
   \   {'word': 'from', 'menu': 'fn from(s: Box<str>) -> String', 'info': '', 'kind': 'f', 'icase': 1, 'user_data': json_encode({'_ale_completion_item': 1})},
   \   {'word': 'from', 'menu': 'fn from(s: Cow<''a, str>) -> String', 'info': '', 'kind': 'f', 'icase': 1, 'user_data': json_encode({'_ale_completion_item': 1})},
+  \   {'word': 'to_vec', 'menu': 'pub fn to_vec(&self) -> Vec<T> where T: Clone,', 'info': '', 'kind': 'f', 'icase': 1, 'user_data': json_encode({'_ale_completion_item': 1})},
   \],
   \ ale#completion#ParseLSPCompletions({
   \   "jsonrpc":"2.0",
@@ -184,6 +185,11 @@ Execute(Should handle Rust completion results correctly):
   \       "label":"from",
   \       "kind":3,
   \       "detail":"fn from(s: Cow<'a, str>) -> String"
+  \     },
+  \     {
+  \       "label":"to_vec",
+  \       "kind":3,
+  \       "detail":"pub fn to_vec(&self) -> Vec<T>\nwhere\n        T: Clone,"
   \     }
   \   ]
   \ })
diff --git a/test/eslint-test-files/react-app/node_modules/xo/cli.js b/test/eslint-test-files/react-app/node_modules/xo/cli.js
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/eslint-test-files/react-app/node_modules/xo/cli.js
diff --git a/test/eslint-test-files/react-app/subdir/testfile.ts b/test/eslint-test-files/react-app/subdir/testfile.ts
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/eslint-test-files/react-app/subdir/testfile.ts
diff --git a/test/fixers/test_autoimport_fixer_callback.vader b/test/fixers/test_autoimport_fixer_callback.vader
new file mode 100644
index 00000000..6952cbb8
--- /dev/null
+++ b/test/fixers/test_autoimport_fixer_callback.vader
@@ -0,0 +1,50 @@
+Before:
+  Save g:ale_python_autoimport_executable
+  Save g:ale_python_autoimport_options
+
+  " Use an invalid global executable, so we don't match it.
+  let g:ale_python_autoimport_executable = 'xxxinvalid'
+  let g:ale_python_autoimport_options = ''
+
+  call ale#test#SetDirectory('/testplugin/test/fixers')
+  silent cd ..
+  silent cd command_callback
+  let g:dir = getcwd()
+
+  let b:bin_dir = has('win32') ? 'Scripts' : 'bin'
+
+After:
+  Restore
+
+  unlet! b:bin_dir
+
+  call ale#test#RestoreDirectory()
+
+Execute(The autoimport callback should return the correct default values):
+  AssertEqual
+  \ 0,
+  \ ale#fixers#autoimport#Fix(bufnr(''))
+
+  silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.py')
+  AssertEqual
+  \ {
+  \   'command': ale#path#BufferCdString(bufnr(''))
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/env/' . b:bin_dir . '/autoimport')) . ' -',
+  \ },
+  \ ale#fixers#autoimport#Fix(bufnr(''))
+
+Execute(The autoimport callback should respect custom options):
+  let g:ale_python_autoimport_options = '--multi-line=3 --trailing-comma'
+
+  AssertEqual
+  \ 0,
+  \ ale#fixers#autoimport#Fix(bufnr(''))
+
+  silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.py')
+  AssertEqual
+  \ {
+  \   'command': ale#path#BufferCdString(bufnr(''))
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/env/' . b:bin_dir . '/autoimport'))
+  \     . ' --multi-line=3 --trailing-comma -',
+  \ },
+  \ ale#fixers#autoimport#Fix(bufnr(''))
diff --git a/test/fixers/test_dhall_fixer_callback.vader b/test/fixers/test_dhall_fixer_callback.vader
deleted file mode 100644
index f27880b7..00000000
--- a/test/fixers/test_dhall_fixer_callback.vader
+++ /dev/null
@@ -1,11 +0,0 @@
-Before:
-  call ale#assert#SetUpFixerTest('dhall', 'dhall')
-
-After:
-  call ale#assert#TearDownFixerTest()
-
-Execute(The default command should be correct):
-  AssertFixer
-  \ { 'read_temporary_file': 1,
-  \   'command': ale#Escape('dhall') . ' format --inplace %t'
-  \ }
diff --git a/test/fixers/test_dhall_format_fixer_callback.vader b/test/fixers/test_dhall_format_fixer_callback.vader
new file mode 100644
index 00000000..9bc17f7e
--- /dev/null
+++ b/test/fixers/test_dhall_format_fixer_callback.vader
@@ -0,0 +1,24 @@
+Before:
+  Save g:ale_dhall_executable
+  Save g:ale_dhall_options
+
+  " Use an invalid global executable, so we don’t match it.
+  let g:ale_dhall_executable = 'odd-dhall'
+  let g:ale_dhall_options = '--ascii'
+
+  call ale#assert#SetUpFixerTest('dhall-format', 'dhall-format')
+
+After:
+  call ale#assert#TearDownFixerTest()
+
+Execute(The dhall-format callback should return the correct options):
+  call ale#test#SetFilename('../dhall_files/testfile.dhall')
+
+  AssertFixer
+  \ {
+  \   'command': ale#Escape('odd-dhall')
+  \     . ' --ascii'
+  \     . ' format'
+  \     . ' --inplace %t',
+  \   'read_temporary_file': 1,
+  \ }
diff --git a/test/fixers/test_dhall_freeze_fixer_callback.vader b/test/fixers/test_dhall_freeze_fixer_callback.vader
new file mode 100644
index 00000000..c8f820bb
--- /dev/null
+++ b/test/fixers/test_dhall_freeze_fixer_callback.vader
@@ -0,0 +1,24 @@
+Before:
+  Save g:ale_dhall_executable
+  Save g:ale_dhall_options
+
+  " Use an invalid global executable, so we don’t match it.
+  let g:ale_dhall_executable = 'odd-dhall'
+  let g:ale_dhall_options = '--ascii'
+  let g:ale_dhall_freeze_options = '--all'
+
+  call ale#assert#SetUpFixerTest('dhall-freeze', 'dhall-freeze')
+
+After:
+  call ale#assert#TearDownFixerTest()
+
+Execute(The dhall-freeze callback should return the correct options):
+  AssertFixer
+  \ {
+  \   'command': ale#Escape('odd-dhall')
+  \     . ' --ascii'
+  \     . ' freeze'
+  \     . ' --all'
+  \     . ' --inplace %t',
+  \   'read_temporary_file': 1,
+  \ }
diff --git a/test/fixers/test_dhall_lint_fixer_callback.vader b/test/fixers/test_dhall_lint_fixer_callback.vader
new file mode 100644
index 00000000..82229363
--- /dev/null
+++ b/test/fixers/test_dhall_lint_fixer_callback.vader
@@ -0,0 +1,22 @@
+Before:
+  Save g:ale_dhall_executable
+  Save g:ale_dhall_options
+
+  " Use an invalid global executable, so we don’t match it.
+  let g:ale_dhall_executable = 'odd-dhall'
+  let g:ale_dhall_options = '--ascii'
+
+  call ale#assert#SetUpFixerTest('dhall-lint', 'dhall-lint')
+
+After:
+  call ale#assert#TearDownFixerTest()
+
+Execute(The dhall-lint callback should return the correct options):
+  AssertFixer
+  \ {
+  \   'command': ale#Escape('odd-dhall')
+  \     . ' --ascii'
+  \     . ' lint'
+  \     . ' --inplace %t',
+  \   'read_temporary_file': 1,
+  \ }
diff --git a/test/fixers/test_gofmt_fixer_callback.vader b/test/fixers/test_gofmt_fixer_callback.vader
index 16659655..99407173 100644
--- a/test/fixers/test_gofmt_fixer_callback.vader
+++ b/test/fixers/test_gofmt_fixer_callback.vader
@@ -21,10 +21,7 @@ Execute(The gofmt callback should return the correct default values):
 
   AssertEqual
   \ {
-  \   'read_temporary_file': 1,
-  \   'command': ale#Escape('xxxinvalid')
-  \     . ' -l -w'
-  \     . ' %t',
+  \   'command': ale#Escape('xxxinvalid'),
   \ },
   \ ale#fixers#gofmt#Fix(bufnr(''))
 
@@ -35,11 +32,8 @@ Execute(The gofmt callback should include custom gofmt options):
 
   AssertEqual
   \ {
-  \   'read_temporary_file': 1,
   \   'command': ale#Escape('xxxinvalid')
-  \     . ' -l -w'
-  \     . ' ' . g:ale_go_gofmt_options
-  \     . ' %t',
+  \     . ' ' . g:ale_go_gofmt_options,
   \ },
   \ ale#fixers#gofmt#Fix(bufnr(''))
 
@@ -50,9 +44,7 @@ Execute(The gofmt callback should support Go environment variables):
 
   AssertEqual
   \ {
-  \   'read_temporary_file': 1,
   \   'command': ale#Env('GO111MODULE', 'off')
-  \     . ale#Escape('xxxinvalid') . ' -l -w'
-  \     . ' %t',
+  \     . ale#Escape('xxxinvalid')
   \ },
   \ ale#fixers#gofmt#Fix(bufnr(''))
diff --git a/test/fixers/test_isort_fixer_callback.vader b/test/fixers/test_isort_fixer_callback.vader
index 7f389dcf..3941f6dd 100644
--- a/test/fixers/test_isort_fixer_callback.vader
+++ b/test/fixers/test_isort_fixer_callback.vader
@@ -5,6 +5,7 @@ Before:
   " Use an invalid global executable, so we don't match it.
   let g:ale_python_isort_executable = 'xxxinvalid'
   let g:ale_python_isort_options = ''
+  let g:ale_python_isort_auto_pipenv = 0
 
   call ale#test#SetDirectory('/testplugin/test/fixers')
   silent cd ..
@@ -48,3 +49,12 @@ Execute(The isort callback should respect custom options):
   \     . ' --multi-line=3 --trailing-comma -',
   \ },
   \ ale#fixers#isort#Fix(bufnr(''))
+
+Execute(Pipenv is detected when python_isort_auto_pipenv is set):
+  let g:ale_python_isort_auto_pipenv = 1
+
+  call ale#test#SetFilename('/testplugin/test/python_fixtures/pipenv/whatever.py')
+
+  AssertEqual
+  \ {'command': ale#path#BufferCdString(bufnr('')) . ale#Escape('pipenv') . ' run isort -'},
+  \ ale#fixers#isort#Fix(bufnr(''))
diff --git a/test/fixers/test_luafmt_fixer_callback.vader b/test/fixers/test_luafmt_fixer_callback.vader
new file mode 100644
index 00000000..362da118
--- /dev/null
+++ b/test/fixers/test_luafmt_fixer_callback.vader
@@ -0,0 +1,35 @@
+Before:
+  Save g:ale_lua_luafmt_executable
+  Save g:ale_lua_luafmt_options
+
+  " Use an invalid global executable, so we don't match it.
+  let g:ale_lua_luafmt_executable = 'xxxinvalid'
+  let g:ale_lua_luafmt_options = ''
+
+  call ale#test#SetDirectory('/testplugin/test/fixers')
+
+After:
+  Restore
+
+  call ale#test#RestoreDirectory()
+
+Execute(The luafmt callback should return the correct default values):
+  call ale#test#SetFilename('../lua_files/testfile.lua')
+
+  AssertEqual
+  \ {
+  \   'command': ale#Escape('xxxinvalid') . ' --stdin',
+  \ },
+  \ ale#fixers#luafmt#Fix(bufnr(''))
+
+Execute(The luafmt callback should include custom luafmt options):
+  let g:ale_lua_luafmt_options = "--skip-children"
+  call ale#test#SetFilename('../lua_files/testfile.lua')
+
+  AssertEqual
+  \ {
+  \   'command': ale#Escape('xxxinvalid')
+  \     . ' ' . g:ale_lua_luafmt_options
+  \     . ' --stdin',
+  \ },
+  \ ale#fixers#luafmt#Fix(bufnr(''))
diff --git a/test/fixers/test_ormolu_fixer_callback.vader b/test/fixers/test_ormolu_fixer_callback.vader
new file mode 100644
index 00000000..8df3fca9
--- /dev/null
+++ b/test/fixers/test_ormolu_fixer_callback.vader
@@ -0,0 +1,24 @@
+Before:
+  Save g:ale_haskell_ormolu_executable
+  Save g:ale_haskell_ormolu_options
+
+After:
+  Restore
+
+Execute(The ormolu callback should return the correct default values):
+  AssertEqual
+  \ {
+  \   'command': ale#Escape('ormolu')
+  \ },
+  \ ale#fixers#ormolu#Fix(bufnr(''))
+
+Execute(The ormolu executable and options should be configurable):
+  let g:ale_nix_nixpkgsfmt_executable = '/path/to/ormolu'
+  let g:ale_nix_nixpkgsfmt_options = '-h'
+
+  AssertEqual
+  \ {
+  \   'command': ale#Escape('/path/to/ormolu')
+  \     . ' -h',
+  \ },
+  \ ale#fixers#nixpkgsfmt#Fix(bufnr(''))
diff --git a/test/fixers/test_phpcbf_fixer_callback.vader b/test/fixers/test_phpcbf_fixer_callback.vader
index 1663c89c..f7bcc2d8 100644
--- a/test/fixers/test_phpcbf_fixer_callback.vader
+++ b/test/fixers/test_phpcbf_fixer_callback.vader
@@ -5,6 +5,7 @@ Before:
 
   let g:ale_php_phpcbf_executable = 'phpcbf_test'
   let g:ale_php_phpcbf_standard = ''
+  let g:ale_php_phpcbf_options = ''
   let g:ale_php_phpcbf_use_global = 0
 
   call ale#test#SetDirectory('/testplugin/test/fixers')
@@ -54,6 +55,15 @@ Execute(The phpcbf callback should include the phpcbf_standard option):
   \ {'command': ale#Escape(ale#path#Simplify(g:dir . '/php_paths/project-with-phpcbf/vendor/bin/phpcbf')) . ' --stdin-path=%s ' . '--standard=phpcbf_ruleset.xml' . ' -'},
   \ ale#fixers#phpcbf#Fix(bufnr(''))
 
+Execute(User provided options should be used):
+  let g:ale_php_phpcbf_options = '--my-user-provided-option my-value'
+  call ale#test#SetFilename('php_paths/project-with-phpcbf/foo/test.php')
+
+  AssertEqual
+  \ {'command': ale#Escape(ale#path#Simplify(g:dir . '/php_paths/project-with-phpcbf/vendor/bin/phpcbf')) . ' --stdin-path=%s ' . ale#Pad('--my-user-provided-option my-value') . ' -'},
+  \ ale#fixers#phpcbf#Fix(bufnr(''))
+
+
 Before:
   Save g:ale_php_phpcbf_executable
   Save g:ale_php_phpcbf_standard
@@ -61,6 +71,7 @@ Before:
 
   let g:ale_php_phpcbf_executable = 'phpcbf_test'
   let g:ale_php_phpcbf_standard = ''
+  let g:ale_php_phpcbf_options = ''
   let g:ale_php_phpcbf_use_global = 0
 
   call ale#test#SetDirectory('/testplugin/test/fixers')
diff --git a/test/fixers/test_standardrb_fixer_callback.vader b/test/fixers/test_standardrb_fixer_callback.vader
index 99234b79..d315651f 100644
--- a/test/fixers/test_standardrb_fixer_callback.vader
+++ b/test/fixers/test_standardrb_fixer_callback.vader
@@ -21,9 +21,9 @@ Execute(The standardrb callback should return the correct default values):
 
   AssertEqual
   \ {
-  \   'read_temporary_file': 1,
+  \   'process_with': 'ale#fixers#rubocop#PostProcess',
   \   'command': ale#Escape(g:ale_ruby_standardrb_executable)
-  \     . ' --fix --force-exclusion %t',
+  \     . ' --fix --force-exclusion --stdin %s',
   \ },
   \ ale#fixers#standardrb#Fix(bufnr(''))
 
@@ -32,10 +32,10 @@ Execute(The standardrb callback should include configuration files):
 
   AssertEqual
   \ {
-  \   'read_temporary_file': 1,
+  \   'process_with': 'ale#fixers#rubocop#PostProcess',
   \   'command': ale#Escape(g:ale_ruby_standardrb_executable)
   \     . ' --config ' . ale#Escape(ale#path#Simplify(g:dir . '/ruby_paths/with_config/.standard.yml'))
-  \     . ' --fix --force-exclusion %t',
+  \     . ' --fix --force-exclusion --stdin %s',
   \ },
   \ ale#fixers#standardrb#Fix(bufnr(''))
 
@@ -45,10 +45,10 @@ Execute(The standardrb callback should include custom rubocop options):
 
   AssertEqual
   \ {
-  \   'read_temporary_file': 1,
+  \   'process_with': 'ale#fixers#rubocop#PostProcess',
   \   'command': ale#Escape(g:ale_ruby_standardrb_executable)
   \     . ' --config ' . ale#Escape(ale#path#Simplify(g:dir . '/ruby_paths/with_config/.standard.yml'))
   \     . ' --except Lint/Debugger'
-  \     . ' --fix --force-exclusion %t',
+  \     . ' --fix --force-exclusion --stdin %s',
   \ },
   \ ale#fixers#standardrb#Fix(bufnr(''))
diff --git a/test/fixers/test_xo_fixer_callback.vader b/test/fixers/test_xo_fixer_callback.vader
new file mode 100644
index 00000000..a473606e
--- /dev/null
+++ b/test/fixers/test_xo_fixer_callback.vader
@@ -0,0 +1,45 @@
+Before:
+  call ale#assert#SetUpFixerTest('javascript', 'xo')
+  runtime autoload/ale/handlers/xo.vim
+  set filetype=javascript
+
+After:
+  call ale#assert#TearDownFixerTest()
+
+Execute(The xo callback should return the correct default values):
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.js')
+
+  AssertFixer
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command': (has('win32') ? 'node.exe ' : '')
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
+  \     . ' --fix %t',
+  \ }
+
+Execute(The xo callback should include custom xo options):
+  let g:ale_javascript_xo_options = '--space'
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.js')
+
+  AssertFixer
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command': (has('win32') ? 'node.exe ' : '')
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
+  \     . ' --fix %t'
+  \     . ' --space',
+  \ }
+
+Execute(--stdin should be used when xo is new enough):
+  let g:ale_javascript_xo_options = '--space'
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.js')
+
+  GivenCommandOutput ['0.30.0']
+  AssertFixer
+  \ {
+  \   'command': (has('win32') ? 'node.exe ' : '')
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
+  \     . ' --stdin --stdin-filename %s'
+  \     . ' --fix'
+  \     . ' --space',
+  \ }
diff --git a/test/fixers/test_xots_fixer_callback.vader b/test/fixers/test_xots_fixer_callback.vader
new file mode 100644
index 00000000..5c7fa1d1
--- /dev/null
+++ b/test/fixers/test_xots_fixer_callback.vader
@@ -0,0 +1,45 @@
+Before:
+  call ale#assert#SetUpFixerTest('typescript', 'xo')
+  runtime autoload/ale/handlers/xo.vim
+  set filetype=typescript
+
+After:
+  call ale#assert#TearDownFixerTest()
+
+Execute(The xo callback should return the correct default values):
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.ts')
+
+  AssertFixer
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command': (has('win32') ? 'node.exe ' : '')
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
+  \     . ' --fix %t',
+  \ }
+
+Execute(The xo callback should include custom xo options):
+  let g:ale_typescript_xo_options = '--space'
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.ts')
+
+  AssertFixer
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command': (has('win32') ? 'node.exe ' : '')
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
+  \     . ' --fix %t'
+  \     . ' --space',
+  \ }
+
+Execute(--stdin should be used when xo is new enough):
+  let g:ale_typescript_xo_options = '--space'
+  call ale#test#SetFilename('../xo-test-files/monorepo/packages/a/index.ts')
+
+  GivenCommandOutput ['0.30.0']
+  AssertFixer
+  \ {
+  \   'command': (has('win32') ? 'node.exe ' : '')
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/../xo-test-files/monorepo/node_modules/xo/cli.js'))
+  \     . ' --stdin --stdin-filename %s'
+  \     . ' --fix'
+  \     . ' --space',
+  \ }
diff --git a/test/fixers/test_yamlfix_fixer_callback.vader b/test/fixers/test_yamlfix_fixer_callback.vader
new file mode 100644
index 00000000..3ffda91e
--- /dev/null
+++ b/test/fixers/test_yamlfix_fixer_callback.vader
@@ -0,0 +1,50 @@
+Before:
+  Save g:ale_python_yamlfix_executable
+  Save g:ale_python_yamlfix_options
+
+  " Use an invalid global executable, so we don't match it.
+  let g:ale_python_yamlfix_executable = 'xxxinvalid'
+  let g:ale_python_yamlfix_options = ''
+
+  call ale#test#SetDirectory('/testplugin/test/fixers')
+  silent cd ..
+  silent cd command_callback
+  let g:dir = getcwd()
+
+  let b:bin_dir = has('win32') ? 'Scripts' : 'bin'
+
+After:
+  Restore
+
+  unlet! b:bin_dir
+
+  call ale#test#RestoreDirectory()
+
+Execute(The yamlfix callback should return the correct default values):
+  AssertEqual
+  \ 0,
+  \ ale#fixers#yamlfix#Fix(bufnr(''))
+
+  silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.yaml')
+  AssertEqual
+  \ {
+  \   'command': ale#path#BufferCdString(bufnr(''))
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/env/' . b:bin_dir . '/yamlfix')) . ' -',
+  \ },
+  \ ale#fixers#yamlfix#Fix(bufnr(''))
+
+Execute(The yamlfix callback should respect custom options):
+  let g:ale_yaml_yamlfix_options = '--multi-line=3 --trailing-comma'
+
+  AssertEqual
+  \ 0,
+  \ ale#fixers#yamlfix#Fix(bufnr(''))
+
+  silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.yaml')
+  AssertEqual
+  \ {
+  \   'command': ale#path#BufferCdString(bufnr(''))
+  \     . ale#Escape(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/env/' . b:bin_dir . '/yamlfix'))
+  \     . ' --multi-line=3 --trailing-comma -',
+  \ },
+  \ ale#fixers#yamlfix#Fix(bufnr(''))
diff --git a/test/handler/test_atools_handler.vader b/test/handler/test_atools_handler.vader
new file mode 100644
index 00000000..1bb9ca00
--- /dev/null
+++ b/test/handler/test_atools_handler.vader
@@ -0,0 +1,85 @@
+Before:
+  runtime autoload/ale/handlers/atools.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(The atools handler should handle basic errors or warings):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 2,
+  \     'text': 'trailing whitespace',
+  \     'type': 'E',
+  \     'code': 'AL8',
+  \   },
+  \   {
+  \     'lnum': 15,
+  \     'text': '$pkgname should not be used in the source url',
+  \     'type': 'W',
+  \     'code': 'AL29',
+  \   },
+  \ ],
+  \ ale#handlers#atools#Handle(bufnr(''), [
+  \   'IC:[AL8]:APKBUILD:2:trailing whitespace',
+  \   'MC:[AL29]:APKBUILD:15:$pkgname should not be used in the source url',
+  \ ])
+
+" Regardless of the severity, if the certainty is [P]ossible and not [C]ertain
+" or if regardless of the Certainity the Severity is not [I]mportant or [S]erious
+" then it must be a [W]arning
+Execute(If we are not Certain or Importantly Serious, be a Warning):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 3,
+  \     'text': 'This violation is Serious but Possible false positive, I am a Warning!',
+  \     'type': 'W',
+  \     'code': 'AL',
+  \   },
+  \   {
+  \     'lnum': 4,
+  \     'text': 'This violation is Important but Possible false positive, I am a Warning!',
+  \     'type': 'W',
+  \     'code': 'AL',
+  \   },
+  \   {
+  \     'lnum': 5,
+  \     'text': 'This violation is Minor, I am a Warning!',
+  \     'type': 'W',
+  \     'code': 'AL',
+  \   },
+  \   {
+  \     'lnum': 6,
+  \     'text': 'This violation is Style, I am a Warning!',
+  \     'type': 'W',
+  \     'code': 'AL',
+  \   },
+  \ ],
+  \ ale#handlers#atools#Handle(bufnr(''), [
+  \   'SP:[AL]:APKBUILD:3:This violation is Serious but Possible false positive, I am a Warning!',
+  \   'IP:[AL]:APKBUILD:4:This violation is Important but Possible false positive, I am a Warning!',
+  \   'MC:[AL]:APKBUILD:5:This violation is Minor, I am a Warning!',
+  \   'TC:[AL]:APKBUILD:6:This violation is Style, I am a Warning!',
+  \ ])
+
+Execute(We should be error if we are Certain it is Serious or Important):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 7,
+  \     'text': 'This is Certainly Serious, I am an Error!',
+  \     'type': 'E',
+  \     'code': 'AL',
+  \   },
+  \   {
+  \     'lnum': 8,
+  \     'text': 'This is Certainly Important, I am an Error!',
+  \     'type': 'E',
+  \     'code': 'AL',
+  \   },
+  \ ],
+  \ ale#handlers#atools#Handle(bufnr(''), [
+  \    'SC:[AL]:APKBUILD:7:This is Certainly Serious, I am an Error!',
+  \    'IC:[AL]:APKBUILD:8:This is Certainly Important, I am an Error!',
+  \ ])
diff --git a/test/handler/test_dafny_handler.vader b/test/handler/test_dafny_handler.vader
index 674f691d..472615ac 100644
--- a/test/handler/test_dafny_handler.vader
+++ b/test/handler/test_dafny_handler.vader
@@ -8,21 +8,29 @@ Execute(The Dafny handler should parse output correctly):
   AssertEqual
   \ [
   \   {
-  \     'bufnr': 0,
+  \     'filename': 'File.dfy',
   \     'col': 45,
   \     'lnum': 123,
   \     'text': 'A precondition for this call might not hold.',
   \     'type': 'E'
   \   },
   \   {
-  \     'bufnr': 0,
+  \     'filename': 'File.dfy',
   \     'col': 90,
   \     'lnum': 678,
   \     'text': 'This is the precondition that might not hold.',
   \     'type': 'W'
-  \   }
+  \   },
+  \   {
+  \     'bufnr': 0,
+  \     'col': 45,
+  \     'lnum': 123,
+  \     'text': "Verification of 'Impl$$_22_Proof.__default.PutKeepsMapsFull' timed out after 2 seconds",
+  \     'type': 'E'
+  \   },
   \ ],
   \ ale_linters#dafny#dafny#Handle(0, [
   \ 'File.dfy(123,45): Error BP5002: A precondition for this call might not hold.',
-  \ 'File.dfy(678,90): Related location: This is the precondition that might not hold.'
+  \ 'File.dfy(678,90): Related location: This is the precondition that might not hold.',
+  \ "File.dfy(123,45): Verification of 'Impl$$_22_Proof.__default.PutKeepsMapsFull' timed out after 2 seconds",
   \ ])
diff --git a/test/handler/test_erlang_elvis_handler.vader b/test/handler/test_erlang_elvis_handler.vader
new file mode 100644
index 00000000..365376c8
--- /dev/null
+++ b/test/handler/test_erlang_elvis_handler.vader
@@ -0,0 +1,37 @@
+Before:
+  runtime ale_linters/erlang/elvis.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(Warning messages should be handled):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 11,
+  \     'text': "Replace the 'if' expression on line 11 with a 'case' expression or function clauses.",
+  \     'type': 'W',
+  \   },
+  \   {
+  \     'lnum': 20,
+  \     'text': 'Remove the debug call to io:format/1 on line 20.',
+  \     'type': 'W',
+  \   },
+  \ ],
+  \ ale_linters#erlang#elvis#Handle(bufnr(''), [
+  \   "src/foo.erl:11:no_if_expression:Replace the 'if' expression on line 11 with a 'case' expression or function clauses.",
+  \   'src/foo.erl:20:no_debug_call:Remove the debug call to io:format/1 on line 20.',
+  \ ])
+
+Execute(Line length message shouldn't contain the line itself):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 24,
+  \     'text': 'Line 24 is too long.',
+  \     'type': 'W',
+  \   },
+  \ ],
+  \ ale_linters#erlang#elvis#Handle(bufnr(''), [
+  \   'src/foo.erl:24:line_length:Line 24 is too long:     io:format("Look ma, too long!"),.',
+  \ ])
diff --git a/test/handler/test_ibm_openapi_validator_handler.vader b/test/handler/test_ibm_openapi_validator_handler.vader
new file mode 100644
index 00000000..e136d5d2
--- /dev/null
+++ b/test/handler/test_ibm_openapi_validator_handler.vader
@@ -0,0 +1,49 @@
+Before:
+  runtime! ale_linters/openapi/ibm_validator.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(Problems should be parsed correctly for openapi-ibm-validator):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 54,
+  \     'col': 0,
+  \     'type': 'E',
+  \     'text': 'Items with a description must have content in it.',
+  \   },
+  \   {
+  \     'lnum': 24,
+  \     'col': 0,
+  \     'type': 'W',
+  \     'text': 'Operations must have a non-empty `operationId`.',
+  \   },
+  \   {
+  \     'lnum': 40,
+  \     'col': 0,
+  \     'type': 'W',
+  \     'text': 'operationIds must follow case convention: lower_snake_case',
+  \   },
+  \ ],
+  \ ale_linters#openapi#ibm_validator#Handle(bufnr(''), [
+  \   '',
+  \   '[Warning] No .validaterc file found. The validator will run in default mode.',
+  \   'To configure the validator, create a .validaterc file.',
+  \   '',
+  \   'errors',
+  \   '',
+  \   '  Message :   Items with a description must have content in it.',
+  \   '  Path    :   paths./settings.patch.description',
+  \   '  Line    :   54',
+  \   '',
+  \   'warnings',
+  \   '',
+  \   '  Message :   Operations must have a non-empty `operationId`.',
+  \   '  Path    :   paths./stats.get.operationId',
+  \   '  Line    :   24',
+  \   '',
+  \   '  Message :   operationIds must follow case convention: lower_snake_case',
+  \   '  Path    :   paths./settings.get.operationId',
+  \   '  Line    :   40'
+  \ ])
diff --git a/test/handler/test_inko_handler.vader b/test/handler/test_inko_handler.vader
new file mode 100644
index 00000000..6621d2d6
--- /dev/null
+++ b/test/handler/test_inko_handler.vader
@@ -0,0 +1,54 @@
+Before:
+  runtime ale_linters/inko/inko.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(The inko handler should parse errors correctly):
+  AssertEqual
+  \ [
+  \   {
+  \     'filename': ale#path#Simplify('/tmp/foo.inko'),
+  \     'lnum': 4,
+  \     'col': 5,
+  \     'text': 'this is an error',
+  \     'type': 'E',
+  \   }
+  \ ],
+  \ ale#handlers#inko#Handle(bufnr(''), [
+  \ '[',
+  \ '  {',
+  \ '    "file": "/tmp/foo.inko",',
+  \ '    "line": 4,',
+  \ '    "column": 5,',
+  \ '    "message": "this is an error",',
+  \ '    "level": "error"',
+  \ '  }',
+  \ ']'
+  \ ])
+
+Execute(The inko handler should parse warnings correctly):
+  AssertEqual
+  \ [
+  \   {
+  \     'filename': ale#path#Simplify('/tmp/foo.inko'),
+  \     'lnum': 4,
+  \     'col': 5,
+  \     'text': 'this is a warning',
+  \     'type': 'W',
+  \   }
+  \ ],
+  \ ale#handlers#inko#Handle(bufnr(''), [
+  \ '[',
+  \ '  {',
+  \ '    "file": "/tmp/foo.inko",',
+  \ '    "line": 4,',
+  \ '    "column": 5,',
+  \ '    "message": "this is a warning",',
+  \ '    "level": "warning"',
+  \ '  }',
+  \ ']'
+  \ ])
+
+Execute(The inko handler should handle empty output):
+  AssertEqual [], ale#handlers#inko#Handle(bufnr(''), [])
diff --git a/test/handler/test_phpcs_handler.vader b/test/handler/test_phpcs_handler.vader
index 18accece..26d35cb8 100644
--- a/test/handler/test_phpcs_handler.vader
+++ b/test/handler/test_phpcs_handler.vader
@@ -13,7 +13,16 @@ Execute(phpcs errors should be handled):
   \     'type': 'E',
   \     'sub_type': 'style',
   \     'text': 'Line indented incorrectly; expected 4 spaces, found 2 (Generic.WhiteSpace.ScopeIndent.IncorrectExact)',
-  \   }],
+  \   },
+  \   {
+  \     'lnum': 22,
+  \     'col': 3,
+  \     'type': 'E',
+  \     'sub_type': 'style',
+  \     'text': 'All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks)',
+  \   },
+  \ ],
   \ ale_linters#php#phpcs#Handle(bufnr(''), [
   \ '/path/to/some-filename.php:18:3: error - Line indented incorrectly; expected 4 spaces, found 2 (Generic.WhiteSpace.ScopeIndent.IncorrectExact)',
+  \ "/path/to/some-filename.php:22:3: error - All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '\"\n'.",
   \ ])
diff --git a/test/handler/test_salt_salt_lint.vader b/test/handler/test_salt_salt_lint.vader
new file mode 100644
index 00000000..7e234785
--- /dev/null
+++ b/test/handler/test_salt_salt_lint.vader
@@ -0,0 +1,34 @@
+Before:
+  runtime ale_linters/salt/salt_lint.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(The salt handler should parse lines correctly and show error in severity HIGH):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 5,
+  \     'code': 207,
+  \     'text': 'File modes should always be encapsulated in quotation marks',
+  \     'type': 'E'
+  \   }
+  \ ],
+  \ ale_linters#salt#salt_lint#Handle(255, [
+  \ '[{"id": "207", "message": "File modes should always be encapsulated in quotation marks", "filename": "test.sls", "linenumber": 5, "line": "    - mode: 0755", "severity": "HIGH"}]'
+  \ ])
+
+
+Execute(The salt handler should parse lines correctly and show error in severity not HIGH):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 27,
+  \     'code': 204,
+  \     'text': 'Lines should be no longer that 160 chars',
+  \     'type': 'W'
+  \   }
+  \ ],
+  \ ale_linters#salt#salt_lint#Handle(255, [
+  \ '[{"id": "204", "message": "Lines should be no longer that 160 chars", "filename": "test2.sls", "linenumber": 27, "line": "this line is definitely longer than 160 chars, this line is definitely longer than 160 chars, this line is definitely longer than 160 chars", "severity": "VERY_LOW"}]'
+  \ ])
diff --git a/test/handler/test_spectral_handler.vader b/test/handler/test_spectral_handler.vader
new file mode 100644
index 00000000..89a3ff1b
--- /dev/null
+++ b/test/handler/test_spectral_handler.vader
@@ -0,0 +1,52 @@
+Before:
+  runtime ale_linters/yaml/spectral.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(spectral handler should parse lines correctly):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 1,
+  \     'col': 1,
+  \     'code': 'oas3-api-servers',
+  \     'text': 'OpenAPI `servers` must be present and non-empty array.',
+  \     'type': 'W'
+  \   },
+  \   {
+  \     'lnum': 1,
+  \     'col': 1,
+  \     'code': 'oas3-schema',
+  \     'text': 'Object should have required property `paths`.',
+  \     'type': 'E'
+  \   },
+  \   {
+  \     'lnum': 1,
+  \     'col': 1,
+  \     'code': 'openapi-tags',
+  \     'text': 'OpenAPI object should have non-empty `tags` array.',
+  \     'type': 'W'
+  \   },
+  \   {
+  \     'lnum': 3,
+  \     'col': 6,
+  \     'code': 'info-contact',
+  \     'text': 'Info object should contain `contact` object.',
+  \     'type': 'W'
+  \   },
+  \   {
+  \     'lnum': 3,
+  \     'col': 6,
+  \     'code': 'oas3-schema',
+  \     'text': '`info` property should have required property `version`.',
+  \     'type': 'E'
+  \   },
+  \ ],
+  \ ale#handlers#spectral#HandleSpectralOutput(bufnr(''), [
+  \   'openapi.yml:1:1 warning oas3-api-servers "OpenAPI `servers` must be present and non-empty array."',
+  \   'openapi.yml:1:1 error oas3-schema "Object should have required property `paths`."',
+  \   'openapi.yml:1:1 warning openapi-tags "OpenAPI object should have non-empty `tags` array."',
+  \   'openapi.yml:3:6 warning info-contact "Info object should contain `contact` object."',
+  \   'openapi.yml:3:6 error oas3-schema "`info` property should have required property `version`."',
+  \ ])
diff --git a/test/handler/test_tlint_handler.vader b/test/handler/test_tlint_handler.vader
new file mode 100644
index 00000000..e146346c
--- /dev/null
+++ b/test/handler/test_tlint_handler.vader
@@ -0,0 +1,34 @@
+Before:
+  runtime ale_linters/php/tlint.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(The tlint handler should calculate line numbers):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': '5', 
+  \     'col': 0, 
+  \     'sub_type': 
+  \     'style',
+  \     'type': 'W',
+  \     'text': ['! There should be no unused imports.', 'There should be no unused imports.', '', '', '', '', '', '', '', '']
+  \   },
+  \   {
+  \     'lnum': '15', 
+  \     'col': 0, 
+  \     'sub_type': 
+  \     'style',
+  \     'type': 'W',
+  \     'text': ['! There should be no method visibility in test methods.', 'There should be no method visibility in test methods.', '', '', '', '', '', '', '', '']
+  \   },
+  \ ],
+  \ ale_linters#php#tlint#Handle(347, [
+  \   "Lints for /Users/jose/Code/Tighten/tester/tests/Unit/ExampleTest.php",
+  \   "============",
+  \   "! There should be no unused imports.",
+  \   "5 : `use Illuminate\Foundation\Testing\RefreshDatabase;`",
+  \   "! There should be no method visibility in test methods.",
+  \   "15 : `    public function testBasicTest()`",
+  \ ])
diff --git a/test/handler/test_vala_lint_handler.vader b/test/handler/test_vala_lint_handler.vader
new file mode 100644
index 00000000..b8a4fbfa
--- /dev/null
+++ b/test/handler/test_vala_lint_handler.vader
@@ -0,0 +1,54 @@
+Before:
+  runtime ale_linters/vala/vala_lint.vim
+
+After:
+  call ale#linter#Reset()
+
+Execute(The Vala-Lint handler should parse lines correctly):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 18,
+  \     'col': 18,
+  \     'text': 'Expected space before paren',
+  \     'code': 'space-before-paren',
+  \     'type': 'E',
+  \   },
+  \   {
+  \     'lnum': 64,
+  \     'col': 37,
+  \     'text': 'Expected space before paren',
+  \     'code': 'space-before-paren',
+  \     'type': 'W',
+  \   },
+  \   {
+  \     'lnum': 73,
+  \     'col': 37,
+  \     'text': 'Expected space before paren',
+  \     'code': 'space-before-paren',
+  \     'type': 'E',
+  \   },
+  \ ],
+  \ ale_linters#vala#vala_lint#Handle(bufnr(''), [
+  \   'Application.vala',
+  \   '   18.18    error   Expected space before paren                     space-before-paren',
+  \   '   64.37    warn    Expected space before paren                     space-before-paren',
+  \   '   73.37    error   Expected space before paren                     space-before-paren',
+  \ ])
+
+Execute(The Vala-Lint handler should ignore unknown error types):
+  AssertEqual
+  \ [
+  \   {
+  \     'lnum': 73,
+  \     'col': 37,
+  \     'text': 'Expected space before paren',
+  \     'code': 'space-before-paren',
+  \     'type': 'E',
+  \   },
+  \ ],
+  \ ale_linters#vala#vala_lint#Handle(bufnr(''), [
+  \   'Application.vala',
+  \   '   18.18    test    Expected space before paren                     space-before-paren',
+  \   '   73.37    error   Expected space before paren                     space-before-paren',
+  \ ])
diff --git a/test/handler/test_yamllint_handler.vader b/test/handler/test_yamllint_handler.vader
index 1aa0b9f5..dd51119c 100644
--- a/test/handler/test_yamllint_handler.vader
+++ b/test/handler/test_yamllint_handler.vader
@@ -3,7 +3,7 @@ Before:
 
   let g:ale_warn_about_trailing_whitespace = 1
 
-  runtime! ale_linters/yaml/yamllint.vim
+  runtime! ale/handlers/yamllint.vim
 
 After:
   Restore
@@ -29,7 +29,7 @@ Execute(Problems should be parsed correctly for yamllint):
   \     'text': 'syntax error: expected the node content, but found ''<stream end>''',
   \   },
   \ ],
-  \ ale_linters#yaml#yamllint#Handle(bufnr(''), [
+  \ ale#handlers#yamllint#Handle(bufnr(''), [
   \   'something.yaml:1:1: [warning] missing document start "---" (document-start)',
   \   'something.yml:2:1: [error] syntax error: expected the node content, but found ''<stream end>''',
   \ ])
@@ -45,7 +45,7 @@ Execute(The yamllint handler should respect ale_warn_about_trailing_whitespace):
   \     'code': 'trailing-spaces',
   \   },
   \ ],
-  \ ale_linters#yaml#yamllint#Handle(bufnr(''), [
+  \ ale#handlers#yamllint#Handle(bufnr(''), [
   \   'something.yml:5:18: [error] trailing spaces (trailing-spaces)',
   \ ])
 
@@ -54,6 +54,6 @@ Execute(The yamllint handler should respect ale_warn_about_trailing_whitespace):
   AssertEqual
   \ [
   \ ],
-  \ ale_linters#yaml#yamllint#Handle(bufnr(''), [
+  \ ale#handlers#yamllint#Handle(bufnr(''), [
   \   'something.yml:5:18: [error] trailing spaces (trailing-spaces)',
   \ ])
diff --git a/test/lsp/test_other_initialize_message_handling.vader b/test/lsp/test_other_initialize_message_handling.vader
index b6ef852a..f3b53843 100644
--- a/test/lsp/test_other_initialize_message_handling.vader
+++ b/test/lsp/test_other_initialize_message_handling.vader
@@ -23,6 +23,7 @@ Before:
   \   'completion_trigger_characters': [],
   \   'definition': 0,
   \   'symbol_search': 0,
+  \   'code_actions': 0,
   \ },
   \}
 
@@ -102,6 +103,7 @@ Execute(Capabilities should bet set up correctly):
   \   'definition': 1,
   \   'symbol_search': 1,
   \   'rename': 1,
+  \   'code_actions': 1,
   \ },
   \ b:conn.capabilities
   AssertEqual [[1, 'initialized', {}]], g:message_list
@@ -125,7 +127,7 @@ Execute(Disabled capabilities should be recognised correctly):
   \     'referencesProvider': v:false,
   \     'textDocumentSync': 2,
   \     'documentFormattingProvider': v:true,
-  \     'codeActionProvider': v:true,
+  \     'codeActionProvider': v:false,
   \     'signatureHelpProvider': {
   \       'triggerCharacters': ['(', ','],
   \     },
@@ -146,6 +148,7 @@ Execute(Disabled capabilities should be recognised correctly):
   \   'definition': 0,
   \   'symbol_search': 0,
   \   'rename': 0,
+  \   'code_actions': 0,
   \ },
   \ b:conn.capabilities
   AssertEqual [[1, 'initialized', {}]], g:message_list
@@ -197,6 +200,7 @@ Execute(Capabilities should be enabled when send as Dictionaries):
   \   'typeDefinition': 1,
   \   'symbol_search': 1,
   \   'rename': 1,
+  \   'code_actions': 1,
   \ },
   \ b:conn.capabilities
   AssertEqual [[1, 'initialized', {}]], g:message_list
diff --git a/test/lua_files/testfile.lua b/test/lua_files/testfile.lua
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/lua_files/testfile.lua
diff --git a/test/nix/test.nix b/test/nix/test.nix
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/nix/test.nix
diff --git a/test/nix/test_rnix_lsp.vader b/test/nix/test_rnix_lsp.vader
new file mode 100644
index 00000000..bf62616b
--- /dev/null
+++ b/test/nix/test_rnix_lsp.vader
@@ -0,0 +1,14 @@
+" Author: jD91mZM2 <me@krake.one>
+" Description: Tests for rnix-lsp language client
+
+Before:
+  call ale#assert#SetUpLinterTest('nix', 'rnix_lsp')
+
+After:
+  call ale#assert#TearDownLinterTest()
+
+Execute(should start rnix-lsp):
+  call ale#test#SetFilename('./test.nix')
+  AssertLSPLanguage 'nix'
+  AssertLSPOptions {}
+  AssertLSPProject ale#path#Simplify('.')
diff --git a/test/script/check-duplicate-tags b/test/script/check-duplicate-tags
new file mode 100755
index 00000000..ec1de788
--- /dev/null
+++ b/test/script/check-duplicate-tags
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+set -e
+
+grep --exclude=tags -roh '\*.*\*$' doc | sort | uniq -d
diff --git a/test/script/check-supported-tools-tables b/test/script/check-supported-tools-tables
index f4305707..d238e77f 100755
--- a/test/script/check-supported-tools-tables
+++ b/test/script/check-supported-tools-tables
@@ -15,14 +15,13 @@ while read -r; do
     if [[ "$REPLY" =~ ^! ]]; then
         language="${REPLY/!/}"
     else
-        # shellcheck disable=SC2001
         echo "$language - $REPLY"
     fi
 done < <(
     grep '^\*\|^  *\*' doc/ale-supported-languages-and-tools.txt \
     | sed -e '1,2d' \
     | sed 's/^\* */!/' \
-    | sed 's/^ *\* *\|!!\|\^\|(.*)\|`//g' \
+    | sed -E 's/^ *\* *|!!|\^|\(.*\)|`//g' \
     | sed 's/ *$//'
 ) > "$doc_file"
 
@@ -30,13 +29,12 @@ while read -r; do
     if [[ "$REPLY" =~ ^! ]]; then
         language="${REPLY/!/}"
     else
-        # shellcheck disable=SC2001
         echo "$language - $REPLY"
     fi
 done < <(
     grep '^\*\|^  *\*' supported-tools.md \
     | sed 's/^\* */!/' \
-    | sed 's/^ *\* *\|:floppy_disk:\|:warning:\|(.*)\|\[\|\].*\|-n flag//g' \
+    | sed -E 's/^ *\* *|:floppy_disk:|:warning:|\(.*\)|\[|\].*|-n flag//g' \
     | sed 's/ *$//'
 ) > "$readme_file"
 
diff --git a/test/script/check-tag-alignment b/test/script/check-tag-alignment
new file mode 100755
index 00000000..d41db160
--- /dev/null
+++ b/test/script/check-tag-alignment
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+exit_code=0
+
+# Documentation tags need to be aligned to the right margin, so look for
+# tags which aren't at the right margin.
+grep ' \*[^*]\+\*$' doc/ -r \
+    | awk '{ sep = index($0, ":"); if (length(substr($0, sep + 1 )) < 79) { print } }' \
+    | grep . && exit_code=1
+
+exit $exit_code
diff --git a/test/script/check-tag-references b/test/script/check-tag-references
new file mode 100755
index 00000000..45e741fb
--- /dev/null
+++ b/test/script/check-tag-references
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+set -e
+
+exit_code=0
+tag_regex='[gb]\?:\?\(ale\|ALE\)[a-zA-Z_\-]\+'
+
+tags="$(mktemp -t tags.XXXXXXXX)"
+refs="$(mktemp -t refs.XXXXXXXX)"
+# Grep for tags and references, and complain if we find a reference without
+# a tag for the reference. Only our tags will be included.
+grep --exclude=tags -roh "\\*$tag_regex\\*" doc | sed 's/*//g' | sort -u > "$tags"
+grep --exclude=tags -roh "|$tag_regex|" doc | sed 's/|//g' | sort -u > "$refs"
+
+exit_code=0
+
+if ! [[ $(comm -23 $refs $tags | wc -l) -eq 0 ]]; then
+  exit_code=1
+fi
+
+rm "$tags"
+rm "$refs"
diff --git a/test/script/check-toc b/test/script/check-toc
index 87a61262..f3f8a9ea 100755
--- a/test/script/check-toc
+++ b/test/script/check-toc
@@ -35,7 +35,7 @@ sed -n "$toc_start_line,$toc_end_line"p doc/ale.txt \
     > "$toc_file"
 
 # Get all of the doc files in a natural sorted order.
-doc_files="$(/usr/bin/env ls -1v doc | grep ^ale- | sed 's/^/doc\//' | paste -sd ' ' -)"
+doc_files="$(/usr/bin/env ls -1v doc | grep '^ale-' | sed 's/^/doc\//' | paste -sd ' ' -)"
 
 # shellcheck disable=SC2086
 grep -h '\*ale-.*-options\|^[a-z].*\*ale-.*\*$' $doc_files \
diff --git a/test/script/custom-checks b/test/script/custom-checks
index ca9069e4..83afb28c 100755
--- a/test/script/custom-checks
+++ b/test/script/custom-checks
@@ -13,7 +13,7 @@ echo 'Custom warnings/errors follow:'
 echo
 
 set -o pipefail
-docker run -a stdout "${docker_flags[@]}" test/script/custom-linting-rules . || exit_code=$?
+docker run "${docker_flags[@]}" test/script/custom-linting-rules . || exit_code=$?
 set +o pipefail
 echo
 
@@ -23,7 +23,10 @@ echo '========================================'
 echo 'Duplicate tags follow:'
 echo
 
-grep --exclude=tags -roh '\*.*\*$' doc | sort | uniq -d || exit_code=$?
+set -o pipefail
+docker run "${docker_flags[@]}" test/script/check-duplicate-tags . || exit_code=$?
+set +o pipefail
+echo
 
 echo '========================================'
 echo 'Checking for invalid tag references'
@@ -31,14 +34,9 @@ echo '========================================'
 echo 'Invalid tag references tags follow:'
 echo
 
-tag_regex='[gb]\?:\?\(ale\|ALE\)[a-zA-Z_\-]\+'
-
-# Grep for tags and references, and complain if we find a reference without
-# a tag for the reference. Only our tags will be included.
-diff -u \
-    <(grep --exclude=tags -roh "\\*$tag_regex\\*" doc | sort -u | sed 's/*//g') \
-    <(grep --exclude=tags -roh "|$tag_regex|" doc | sort -u | sed 's/|//g') \
-    | grep '^+[^+]' && exit_code=1
+set -o pipefail
+docker run "${docker_flags[@]}" test/script/check-tag-references || exit_code=$?
+set +o pipefail
 
 echo '========================================'
 echo 'diff supported-tools.md and doc/ale-supported-languages-and-tools.txt tables'
@@ -46,7 +44,9 @@ echo '========================================'
 echo 'Differences follow:'
 echo
 
-test/script/check-supported-tools-tables || exit_code=$?
+set -o pipefail
+docker run "${docker_flags[@]}" test/script/check-supported-tools-tables || exit_code=$?
+set +o pipefail
 
 echo '========================================'
 echo 'Look for badly aligned doc tags'
@@ -54,18 +54,18 @@ echo '========================================'
 echo 'Badly aligned tags follow:'
 echo
 
-# Documentation tags need to be aligned to the right margin, so look for
-# tags which aren't at the right margin.
-grep ' \*[^*]\+\*$' doc/ -r \
-    | awk '{ sep = index($0, ":"); if (length(substr($0, sep + 1 )) < 79) { print } }' \
-    | grep . && exit_code=1
+set -o pipefail
+docker run "${docker_flags[@]}" test/script/check-tag-alignment || exit_code=$?
+set +o pipefail
 
 echo '========================================'
 echo 'Look for table of contents issues'
 echo '========================================'
 echo
 
-test/script/check-toc || exit_code=$?
+set -o pipefail
+docker run "${docker_flags[@]}" test/script/check-toc || exit_code=$?
+set +o pipefail
 
 echo '========================================'
 echo 'Check Python code'
diff --git a/test/script/custom-linting-rules b/test/script/custom-linting-rules
index 981a9459..86294f71 100755
--- a/test/script/custom-linting-rules
+++ b/test/script/custom-linting-rules
@@ -53,17 +53,29 @@ check_errors() {
     regex="$1"
     message="$2"
     include_arg=''
+    exclude_arg=''
 
     if [ $# -gt 2 ]; then
         include_arg="--include $3"
     fi
 
+    if [ $# -gt 3 ]; then
+        shift
+        shift
+        shift
+
+        while (( "$#" )); do
+          exclude_arg="$exclude_arg --exclude $1"
+          shift
+        done
+    fi
+
     for directory in "${directories[@]}"; do
         # shellcheck disable=SC2086
         while read -r; do
             RETURN_CODE=1
             echo "$REPLY $message"
-        done < <(grep -H -n "$regex" $include_arg "$directory"/**/*.vim \
+        done < <(grep -H -n "$regex" $include_arg $exclude_arg "$directory"/**/*.vim \
             | grep -v 'no-custom-checks' \
             | grep -o '^[^:]\+:[0-9]\+' \
             | sed 's:^\./::')
@@ -92,7 +104,7 @@ if (( FIX_ERRORS )); then
     done
 fi
 
-# The arguments are: regex, explanation, [filename_filter]
+# The arguments are: regex, explanation, [filename_filter], [list, of, exclusions]
 check_errors \
     '^function.*) *$' \
     'Function without abort keyword (See :help except-compat)'
@@ -114,7 +126,10 @@ check_errors '==?' "Use 'is?' instead of '==?'. 0 ==? 'foobar' is true"
 check_errors '!=#' "Use 'isnot#' instead of '!=#'. 0 !=# 'foobar' is false"
 check_errors '!=?' "Use 'isnot?' instead of '!=?'. 0 !=? 'foobar' is false"
 check_errors '^ *:\?echo' "Stray echo line. Use \`execute echo\` if you want to echo something"
-check_errors $'name.:.*\'[a-z_]*[^a-z_0-9][a-z_0-9]*\',$' 'Use snake_case names for linters' '*/ale_linters/*'
+# Exclusions for grandfathered-in exceptions
+exclusions="clojure/clj_kondo.vim elixir/elixir_ls.vim go/golangci_lint.vim swift/swiftformat.vim"
+# shellcheck disable=SC2086
+check_errors $'name.:.*\'[a-z_]*[^a-z_0-9][a-z_0-9]*\',$' 'Use snake_case names for linters' '*/ale_linters/*' $exclusions
 # Checks for improving type checks.
 check_errors $'\\(==.\\?\\|is\\) type([\'"]\+)' "Use 'is v:t_string' instead"
 check_errors '\(==.\?\|is\) type([0-9]\+)' "Use 'is v:t_number' instead"
diff --git a/test/test_c_flag_parsing.vader b/test/test_c_flag_parsing.vader
index 99722b17..8b02f2b9 100644
--- a/test/test_c_flag_parsing.vader
+++ b/test/test_c_flag_parsing.vader
@@ -482,6 +482,7 @@ Execute(We should include several important flags):
   \ . ' -idirafter ' . ale#Escape(ale#path#Simplify(g:dir. '/test_c_projects/makefile_project/incafter'))
   \ . ' -iframework ' . ale#Escape(ale#path#Simplify(g:dir . '/test_c_projects/makefile_project/incframework'))
   \ . ' -include ' . ale#Escape(ale#path#Simplify(g:dir . '/test_c_projects/makefile_project/foo bar'))
+  \ . ' -imacros ' . ale#Escape(ale#path#Simplify(g:dir . '/test_c_projects/makefile_project/incmacros'))
   \ . ' -Dmacro="value"'
   \ . ' -DGoal=9'
   \ . ' -D macro2'
@@ -511,6 +512,8 @@ Execute(We should include several important flags):
   \     'incframework',
   \     '-include',
   \     '''foo bar''',
+  \     '-imacros',
+  \     'incmacros',
   \     '-Dmacro="value"',
   \     '-DGoal=9',
   \     '-D',
@@ -559,6 +562,7 @@ Execute(We should quote the flags we need to quote):
   \ . ' -idirafter ' . ale#Escape(ale#path#Simplify(g:dir. '/test_c_projects/makefile_project/incafter'))
   \ . ' -iframework ' . ale#Escape(ale#path#Simplify(g:dir . '/test_c_projects/makefile_project/incframework'))
   \ . ' -include ' . ale#Escape(ale#path#Simplify(g:dir . '/test_c_projects/makefile_project/foo bar'))
+  \ . ' -imacros ' . ale#Escape(ale#path#Simplify(g:dir . '/test_c_projects/makefile_project/incmacros'))
   \ . ' ' . ale#Escape('-Dmacro="value"')
   \ . ' -DGoal=9'
   \ . ' -D macro2'
@@ -591,6 +595,8 @@ Execute(We should quote the flags we need to quote):
   \     'incframework',
   \     '-include',
   \     '''foo bar''',
+  \     '-imacros',
+  \     'incmacros',
   \     '-Dmacro="value"',
   \     '-DGoal=9',
   \     '-D',
diff --git a/test/test_code_action.vader b/test/test_code_action.vader
index 2e5d1381..7eabb759 100644
--- a/test/test_code_action.vader
+++ b/test/test_code_action.vader
@@ -3,6 +3,9 @@ Before:
 
   let g:ale_enabled = 0
 
+  " Enable fix end-of-line as tests below expect that
+  set fixeol
+
   runtime autoload/ale/code_action.vim
   runtime autoload/ale/util.vim
 
@@ -211,6 +214,7 @@ Execute(End of file can be modified):
   \)
 
   AssertEqual g:test.text + [
+  \  '',
   \  'type A: string',
   \  'type B: number',
   \  '',
diff --git a/test/test_code_action_python.vader b/test/test_code_action_python.vader
new file mode 100644
index 00000000..fd30633d
--- /dev/null
+++ b/test/test_code_action_python.vader
@@ -0,0 +1,59 @@
+Given python(An example Python file):
+  def main():
+      a = 1
+      c = a + 1
+
+Execute():
+  let g:changes = [
+  \ {'end': {'offset': 7, 'line': 1}, 'newText': 'func_qtffgsv', 'start': {'offset': 5, 'line': 1}},
+  \ {'end': {'offset': 9, 'line': 1}, 'newText': '', 'start': {'offset': 8, 'line': 1}},
+  \ {'end': {'offset': 15, 'line': 3}, 'newText': "    return c\n\n\ndef main():\n    c = func_qtffgsvi()\n", 'start': {'offset': 15, 'line': 3}}
+  \]
+
+  call ale#code_action#ApplyChanges(expand('%:p'), g:changes, 0)
+
+Expect(The changes should be applied correctly):
+  def func_qtffgsvi():
+      a = 1
+      c = a + 1
+      return c
+
+
+  def main():
+      c = func_qtffgsvi()
+
+
+Given python(Second python example):
+  import sys
+  import exifread
+
+  def main():
+      with open(sys.argv[1], 'rb') as f:
+          exif = exifread.process_file(f)
+          dt = str(exif['Image DateTime'])
+          date = dt[:10].replace(':', '-')
+
+Execute():
+  let g:changes = [
+  \ {'end': {'offset': 16, 'line': 2}, 'newText': "\n\ndef func_ivlpdpao(f):\n    exif = exifread.process_file(f)\n    dt = str(exif['Image DateTime'])\n    date = dt[:10].replace(':', '-')\n    return date\n", 'start': {'offset': 16, 'line': 2}},
+  \ {'end': {'offset': 32, 'line': 6}, 'newText': 'date = func', 'start': {'offset': 9, 'line': 6}},
+  \ {'end': {'offset': 42, 'line': 8}, 'newText': "ivlpdpao(f)\n", 'start': {'offset': 33, 'line': 6}}
+  \]
+
+  call ale#code_action#ApplyChanges(expand('%:p'), g:changes, 0)
+
+Expect(The changes should be applied correctly):
+  import sys
+  import exifread
+
+
+  def func_ivlpdpao(f):
+      exif = exifread.process_file(f)
+      dt = str(exif['Image DateTime'])
+      date = dt[:10].replace(':', '-')
+      return date
+
+
+  def main():
+      with open(sys.argv[1], 'rb') as f:
+          date = func_ivlpdpao(f)
diff --git a/test/test_codefix.vader b/test/test_codefix.vader
new file mode 100644
index 00000000..fc5470aa
--- /dev/null
+++ b/test/test_codefix.vader
@@ -0,0 +1,549 @@
+Before:
+  call ale#test#SetDirectory('/testplugin/test')
+  call ale#test#SetFilename('dummy.txt')
+  Save g:ale_buffer_info
+
+  let g:ale_buffer_info = {}
+
+  let g:old_filename = expand('%:p')
+  let g:Callback = ''
+  let g:expr_list = []
+  let g:message_list = []
+  let g:handle_code_action_called = 0
+  let g:code_actions = []
+  let g:options = {}
+  let g:capability_checked = ''
+  let g:conn_id = v:null
+  let g:InitCallback = v:null
+
+  runtime autoload/ale/lsp_linter.vim
+  runtime autoload/ale/lsp.vim
+  runtime autoload/ale/util.vim
+  runtime autoload/ale/codefix.vim
+  runtime autoload/ale/code_action.vim
+
+  function! ale#lsp_linter#StartLSP(buffer, linter, Callback) abort
+    let g:conn_id = ale#lsp#Register('executable', '/foo/bar', {})
+    call ale#lsp#MarkDocumentAsOpen(g:conn_id, a:buffer)
+
+    if a:linter.lsp is# 'tsserver'
+        call ale#lsp#MarkConnectionAsTsserver(g:conn_id)
+    endif
+
+    let l:details = {
+    \ 'command': 'foobar',
+    \ 'buffer': a:buffer,
+    \ 'connection_id': g:conn_id,
+    \ 'project_root': '/foo/bar',
+    \}
+
+    let g:InitCallback = {-> ale#lsp_linter#OnInit(a:linter, l:details, a:Callback)}
+  endfunction
+
+  function! ale#lsp#HasCapability(conn_id, capability) abort
+    let g:capability_checked = a:capability
+
+    return 1
+  endfunction
+
+  function! ale#lsp#RegisterCallback(conn_id, callback) abort
+    let g:Callback = a:callback
+  endfunction
+
+  function! ale#lsp#Send(conn_id, message) abort
+    call add(g:message_list, a:message)
+
+    return 42
+  endfunction
+
+  function! ale#util#Execute(expr) abort
+    call add(g:expr_list, a:expr)
+  endfunction
+
+  function! ale#code_action#HandleCodeAction(code_action, options) abort
+    let g:handle_code_action_called = 1
+    Assert !get(a:options, 'should_save')
+    call add(g:code_actions, a:code_action)
+  endfunction
+
+  function! ale#util#Input(message, value) abort
+    return '2'
+  endfunction
+
+After:
+  Restore
+
+  if g:conn_id isnot v:null
+    call ale#lsp#RemoveConnectionWithID(g:conn_id)
+  endif
+
+  call ale#test#RestoreDirectory()
+  call ale#linter#Reset()
+
+  unlet! g:capability_checked
+  unlet! g:InitCallback
+  unlet! g:old_filename
+  unlet! g:conn_id
+  unlet! g:Callback
+  unlet! g:message_list
+  unlet! g:expr_list
+  unlet! b:ale_linters
+  unlet! g:options
+  unlet! g:code_actions
+  unlet! g:handle_code_action_called
+
+  runtime autoload/ale/lsp_linter.vim
+  runtime autoload/ale/lsp.vim
+  runtime autoload/ale/util.vim
+  runtime autoload/ale/codefix.vim
+  runtime autoload/ale/code_action.vim
+
+Execute(Failed codefix responses should be handled correctly):
+  call ale#codefix#HandleTSServerResponse(
+  \ 1,
+  \ {'command': 'getCodeFixes', 'request_seq': 3}
+  \)
+  AssertEqual g:handle_code_action_called, 0
+
+Given typescript(Some typescript file):
+  foo
+  somelongerline ()
+  bazxyzxyzxyz
+
+Execute(getCodeFixes from tsserver should be handled):
+  call ale#codefix#SetMap({3: {}})
+  call ale#codefix#HandleTSServerResponse(1, {
+    \ 'command': 'getCodeFixes',
+    \ 'request_seq': 3,
+    \ 'success': v:true,
+    \ 'type': 'response',
+    \ 'body': [
+    \   {
+    \     'description': 'Import default "x" from module "./z"',
+    \     'fixName': 'import',
+    \     'changes': [
+    \       {
+    \         'fileName': "/foo/bar/file1.ts",
+    \         'textChanges': [
+    \           {
+    \             'end': {
+    \               'line': 2,
+    \               'offset': 1,
+    \             },
+    \             'newText': 'import x from "./z";^@',
+    \             'start': {
+    \               'line': 2,
+    \               'offset': 1,
+    \             }
+    \           }
+    \         ]
+    \       }
+    \     ]
+    \   }
+    \ ]
+    \})
+
+  AssertEqual g:handle_code_action_called, 1
+  AssertEqual
+  \ [
+  \   {
+  \     'description': 'codefix',
+  \     'changes': [
+  \       {
+  \         'fileName': "/foo/bar/file1.ts",
+  \         'textChanges': [
+  \           {
+  \             'end': {
+  \               'line': 2,
+  \               'offset': 1
+  \             },
+  \             'newText': 'import x from "./z";^@',
+  \             'start': {
+  \               'line': 2,
+  \               'offset': 1
+  \             }
+  \           }
+  \         ]
+  \       }
+  \     ]
+  \   }
+  \ ],
+  \ g:code_actions
+
+Execute(getCodeFixes from tsserver should be handled with user input if there are more than one action):
+  call ale#codefix#SetMap({3: {}})
+  call ale#codefix#HandleTSServerResponse(1, {
+    \ 'command': 'getCodeFixes',
+    \ 'request_seq': 3,
+    \ 'success': v:true,
+    \ 'type': 'response',
+    \ 'body': [
+    \   {
+    \     'description': 'Import default "x" from module "./z"',
+    \     'fixName': 'import',
+    \     'changes': [
+    \       {
+    \         'fileName': "/foo/bar/file1.ts",
+    \         'textChanges': [
+    \           {
+    \             'end': {
+    \               'line': 2,
+    \               'offset': 1,
+    \             },
+    \             'newText': 'import x from "./z";^@',
+    \             'start': {
+    \               'line': 2,
+    \               'offset': 1,
+    \             }
+    \           }
+    \         ]
+    \       }
+    \     ]
+    \   },
+    \   {
+    \     'description': 'Import default "x" from module "./y"',
+    \     'fixName': 'import',
+    \     'changes': [
+    \       {
+    \         'fileName': "/foo/bar/file1.ts",
+    \         'textChanges': [
+    \           {
+    \             'end': {
+    \               'line': 2,
+    \               'offset': 1,
+    \             },
+    \             'newText': 'import x from "./y";^@',
+    \             'start': {
+    \               'line': 2,
+    \               'offset': 1,
+    \             }
+    \           }
+    \         ]
+    \       }
+    \     ]
+    \   }
+    \ ]
+    \})
+
+  AssertEqual g:handle_code_action_called, 1
+  AssertEqual
+  \ [
+  \   {
+  \     'description': 'codefix',
+  \     'changes': [
+  \       {
+  \         'fileName': "/foo/bar/file1.ts",
+  \         'textChanges': [
+  \           {
+  \             'end': {
+  \               'line': 2,
+  \               'offset': 1
+  \             },
+  \             'newText': 'import x from "./y";^@',
+  \             'start': {
+  \               'line': 2,
+  \               'offset': 1
+  \             }
+  \           }
+  \         ]
+  \       }
+  \     ]
+  \   }
+  \ ],
+  \ g:code_actions
+
+Execute(Prints a tsserver error message when getCodeFixes unsuccessful):
+  call ale#codefix#SetMap({3: {}})
+  call ale#codefix#HandleTSServerResponse(1, {
+  \ 'command': 'getCodeFixes',
+  \ 'request_seq': 3,
+  \ 'success': v:false,
+  \ 'message': 'something is wrong',
+  \})
+
+  AssertEqual g:handle_code_action_called, 0
+  AssertEqual ['echom ''Error while getting code fixes. Reason: something is wrong'''], g:expr_list
+
+Execute(Does nothing when where are no code fixes):
+  call ale#codefix#SetMap({3: {}})
+  call ale#codefix#HandleTSServerResponse(1, {
+  \ 'command': 'getCodeFixes',
+  \ 'request_seq': 3,
+  \ 'success': v:true,
+  \ 'body': []
+  \})
+
+  AssertEqual g:handle_code_action_called, 0
+  AssertEqual ['echom ''No code fixes available.'''], g:expr_list
+
+Execute(tsserver codefix requests should be sent):
+  call ale#linter#Reset()
+
+  runtime ale_linters/typescript/tsserver.vim
+  let g:ale_buffer_info = {bufnr(''): {'loclist': [{'lnum': 2, 'col': 5, 'code': 2304}]}}
+  call setpos('.', [bufnr(''), 2, 16, 0])
+
+  " ALECodeAction
+  call ale#codefix#Execute(0)
+
+  " We shouldn't register the callback yet.
+  AssertEqual '''''', string(g:Callback)
+
+  AssertEqual type(function('type')), type(g:InitCallback)
+  call g:InitCallback()
+
+  AssertEqual 'code_actions', g:capability_checked
+  AssertEqual
+  \ 'function(''ale#codefix#HandleTSServerResponse'')',
+  \ string(g:Callback)
+  AssertEqual
+  \ [
+  \   ale#lsp#tsserver_message#Change(bufnr('')),
+  \   [0, 'ts@getCodeFixes', {
+  \     'startLine': 2,
+  \     'startOffset': 16,
+  \     'endLine': 2,
+  \     'endOffset': 17,
+  \     'file': expand('%:p'),
+  \     'errorCodes': [2304],
+  \   }]
+  \ ],
+  \ g:message_list
+
+Execute(tsserver codefix requests should be sent only for error with code):
+  call ale#linter#Reset()
+
+  runtime ale_linters/typescript/tsserver.vim
+  let g:ale_buffer_info = {bufnr(''): {'loclist': [{'lnum': 2, 'col': 16}, {'lnum': 2, 'col': 16, 'code': 2304}]}}
+  call setpos('.', [bufnr(''), 2, 16, 0])
+
+  " ALECodeAction
+  call ale#codefix#Execute(0)
+
+  " We shouldn't register the callback yet.
+  AssertEqual '''''', string(g:Callback)
+
+  AssertEqual type(function('type')), type(g:InitCallback)
+  call g:InitCallback()
+
+  AssertEqual 'code_actions', g:capability_checked
+  AssertEqual
+  \ 'function(''ale#codefix#HandleTSServerResponse'')',
+  \ string(g:Callback)
+  AssertEqual
+  \ [
+  \   ale#lsp#tsserver_message#Change(bufnr('')),
+  \   [0, 'ts@getCodeFixes', {
+  \     'startLine': 2,
+  \     'startOffset': 16,
+  \     'endLine': 2,
+  \     'endOffset': 17,
+  \     'file': expand('%:p'),
+  \     'errorCodes': [2304],
+  \   }]
+  \ ],
+  \ g:message_list
+
+Execute(getApplicableRefactors from tsserver should be handled):
+  call ale#codefix#SetMap({3: {
+  \ 'buffer': expand('%:p'),
+  \ 'line': 1,
+  \ 'column': 2,
+  \ 'end_line': 3,
+  \ 'end_column': 4,
+  \ 'connection_id': 0,
+  \}})
+  call ale#codefix#HandleTSServerResponse(1,
+  \ {'seq': 0, 'request_seq': 3, 'type': 'response', 'success': v:true, 'body': [{'actions': [{'description': 'Extract to constant in enclosing scope', 'name': 'constant_scope_0'}], 'description': 'Extract constant', 'name': 'Extract Symbol'}, {'actions': [{'description': 'Extract to function in module scope', 'name': 'function_scope_1'}], 'description': 'Extract function', 'name': 'Extract Symbol'}], 'command': 'getApplicableRefactors'})
+
+  AssertEqual
+  \ [
+  \   [0, 'ts@getEditsForRefactor', {
+  \     'startLine': 1,
+  \     'startOffset': 2,
+  \     'endLine': 3,
+  \     'endOffset': 5,
+  \     'file': expand('%:p'),
+  \     'refactor': 'Extract Symbol',
+  \     'action': 'function_scope_1',
+  \   }]
+  \ ],
+  \ g:message_list
+
+Execute(getApplicableRefactors should print error on failure):
+  call ale#codefix#SetMap({3: {
+  \ 'buffer': expand('%:p'),
+  \ 'line': 1,
+  \ 'column': 2,
+  \ 'end_line': 3,
+  \ 'end_column': 4,
+  \ 'connection_id': 0,
+  \}})
+  call ale#codefix#HandleTSServerResponse(1,
+  \ {'seq': 0, 'request_seq': 3, 'type': 'response', 'success': v:false, 'message': 'oops', 'command': 'getApplicableRefactors'})
+
+  AssertEqual ['echom ''Error while getting applicable refactors. Reason: oops'''], g:expr_list
+
+Execute(getApplicableRefactors should do nothing if there are no refactors):
+  call ale#codefix#SetMap({3: {
+  \ 'buffer': expand('%:p'),
+  \ 'line': 1,
+  \ 'column': 2,
+  \ 'end_line': 3,
+  \ 'end_column': 4,
+  \ 'connection_id': 0,
+  \}})
+  call ale#codefix#HandleTSServerResponse(1,
+  \ {'seq': 0, 'request_seq': 3, 'type': 'response', 'success': v:true, 'body': [], 'command': 'getApplicableRefactors'})
+
+  AssertEqual ['echom ''No applicable refactors available.'''], g:expr_list
+
+Execute(getEditsForRefactor from tsserver should be handled):
+  call ale#codefix#SetMap({3: {}})
+  call ale#codefix#HandleTSServerResponse(1,
+  \{'seq': 0, 'request_seq': 3, 'type': 'response', 'success': v:true, 'body': {'edits': [{'fileName': '/foo/bar/file.ts', 'textChanges': [{'end': {'offset': 35, 'line': 9}, 'newText': 'newFunction(app);', 'start': {'offset': 3, 'line': 8}}, {'end': {'offset': 4, 'line': 19}, 'newText': '^@function newFunction(app: Router) {^@    app.use(booExpressCsrf());^@    app.use(booExpressRequireHttps);^@}^@', 'start': {'offset': 4, 'line': 19}}]}], 'renameLocation': {'offset': 3, 'line': 8}, 'renameFilename': '/foo/bar/file.ts'}, 'command': 'getEditsForRefactor' }
+  \)
+
+  AssertEqual g:handle_code_action_called, 1
+  AssertEqual
+  \ [
+  \   {
+  \     'description': 'editsForRefactor',
+  \     'changes': [{'fileName': '/foo/bar/file.ts', 'textChanges': [{'end': {'offset': 35, 'line': 9}, 'newText': 'newFunction(app);', 'start': {'offset': 3, 'line': 8}}, {'end': {'offset': 4, 'line': 19}, 'newText': '^@function newFunction(app: Router) {^@    app.use(booExpressCsrf());^@    app.use(booExpressRequireHttps);^@}^@', 'start': {'offset': 4, 'line': 19}}]}],
+  \   }
+  \ ],
+  \ g:code_actions
+
+Execute(getEditsForRefactor should print error on failure):
+  call ale#codefix#SetMap({3: {}})
+  call ale#codefix#HandleTSServerResponse(1,
+  \{'seq': 0, 'request_seq': 3, 'type': 'response', 'success': v:false, 'message': 'oops', 'command': 'getEditsForRefactor' }
+  \)
+
+  AssertEqual ['echom ''Error while getting edits for refactor. Reason: oops'''], g:expr_list
+
+Execute(Failed LSP responses should be handled correctly):
+  call ale#codefix#HandleLSPResponse(
+  \ 1,
+  \ {'method': 'workspace/applyEdit', 'request_seq': 3}
+  \)
+  AssertEqual g:handle_code_action_called, 0
+
+Given python(Some python file):
+  def main():
+      a = 1
+      b = a + 2
+
+Execute("workspace/applyEdit" from LSP should be handled):
+  call ale#codefix#SetMap({3: {}})
+  call ale#codefix#HandleLSPResponse(1,
+  \ {'id': 0, 'jsonrpc': '2.0', 'method': 'workspace/applyEdit', 'params': {'edit': {'changes': {'file:///foo/bar/file.ts': [{'range': {'end': {'character': 27, 'line': 7}, 'start': {'character': 27, 'line': 7}}, 'newText': ', Config'}, {'range': {'end': {'character': 12, 'line': 96}, 'start': {'character': 2, 'line': 94}}, 'newText': 'await newFunction(redis, imageKey, cover, config);'}, {'range': {'end': {'character': 2, 'line': 99}, 'start': {'character': 2, 'line': 99}}, 'newText': '^@async function newFunction(redis: IRedis, imageKey: string, cover: Buffer, config: Config) {^@    try {^@        await redis.set(imageKey, cover, ''ex'', parseInt(config.coverKeyTTL, 10));^@    }^@    catch { }^@}^@'}]}}}})
+
+  AssertEqual g:handle_code_action_called, 1
+  AssertEqual
+  \ [{'description': 'applyEdit', 'changes': [{'fileName': '/foo/bar/file.ts', 'textChanges': [{'end': {'offset': 28, 'line': 8}, 'newText': ', Config', 'start': {'offset': 28, 'line': 8}}, {'end': {'offset': 13, 'line': 97}, 'newText': 'await newFunction(redis, imageKey, cover, config);', 'start': {'offset': 3, 'line': 95}}, {'end': {'offset': 3, 'line': 100}, 'newText': '^@async function newFunction(redis: IRedis, imageKey: string, cover: Buffer, config: Config) {^@    try {^@        await redis.set(imageKey, cover, ''ex'', parseInt(config.coverKeyTTL, 10));^@    }^@    catch { }^@}^@', 'start': {'offset': 3, 'line': 100}}]}]}],
+  \ g:code_actions
+
+Execute(Code Actions from LSP should be handled with user input if there are more than one action):
+  call ale#codefix#SetMap({2: {}})
+  call ale#codefix#HandleLSPResponse(1,
+  \ {'id': 2, 'jsonrpc': '2.0', 'result': [{'title': 'fake for testing'}, {'arguments': [{'documentChanges': [{'edits': [{'range': {'end': {'character': 31, 'line': 2}, 'start': {'character': 31, 'line': 2}}, 'newText': ', createVideo'}], 'textDocument': {'uri': 'file:///foo/bar/file.ts', 'version': 1}}]}], 'title': 'Add ''createVideo'' to existing import declaration from "./video"', 'command': '_typescript.applyWorkspaceEdit'}]})
+
+  AssertEqual g:handle_code_action_called, 1
+  AssertEqual
+  \ [{'description': 'codeaction', 'changes': [{'fileName': '/foo/bar/file.ts', 'textChanges': [{'end': {'offset': 32, 'line': 3}, 'newText': ', createVideo', 'start': {'offset': 32, 'line': 3}}]}]}],
+  \ g:code_actions
+
+Execute(Code Actions from LSP should be handled when returned with documentChanges):
+  call ale#codefix#SetMap({2: {}})
+  call ale#codefix#HandleLSPResponse(1,
+  \ {'id': 2, 'jsonrpc': '2.0', 'result': [{'diagnostics': v:null, 'edit': {'changes': v:null, 'documentChanges': [{'edits': [{'range': {'end': {'character': 4, 'line': 2}, 'start': {'character': 4, 'line': 1}}, 'newText': ''}, {'range': {'end': {'character': 9, 'line': 2}, 'start': {'character': 8, 'line': 2}}, 'newText': '(1)'}], 'textDocument': {'uri': 'file:///foo/bar/test.py', 'version': v:null}}]}, 'kind': 'refactor.inline', 'title': 'Inline variable', 'command': v:null}, {'diagnostics': v:null, 'edit': {'changes': v:null, 'documentChanges': [{'edits': [{'range': {'end': {'character': 0, 'line': 0}, 'start': {'character': 0, 'line': 0}}, 'newText': 'def func_bomdjnxh():^@    a = 1return a^@^@^@'}, {'range': {'end': {'character': 9, 'line': 1}, 'start': {'character': 8, 'line': 1}}, 'newText': 'func_bomdjnxh()^@'}], 'textDocument': {'uri': 'file:///foo/bar/test.py', 'version': v:null}}]}, 'kind': 'refactor.extract', 'title': 'Extract expression into function ''func_bomdjnxh''', 'command': v:null}]})
+
+  AssertEqual g:handle_code_action_called, 1
+  AssertEqual
+  \ [{'description': 'codeaction', 'changes': [{'fileName': '/foo/bar/test.py', 'textChanges': [{'end': {'offset': 1, 'line': 1}, 'newText': 'def func_bomdjnxh():^@    a = 1return a^@^@^@', 'start': {'offset': 1, 'line': 1}}, {'end': {'offset': 10, 'line': 2}, 'newText': 'func_bomdjnxh()^@', 'start': {'offset': 9, 'line': 2}}]}]}],
+  \ g:code_actions
+
+Execute(LSP Code Actions handles command responses):
+  call ale#codefix#SetMap({3: {
+  \ 'connection_id': 0,
+  \}})
+  call ale#codefix#HandleLSPResponse(1,
+  \ {'id': 3, 'jsonrpc': '2.0', 'result': [{'kind': 'refactor', 'title': 'Extract to inner function in function ''getVideo''', 'command': {'arguments': [{'file': '/foo/bar/file.ts', 'endOffset': 0, 'action': 'function_scope_0', 'startOffset': 1, 'startLine': 65, 'refactor': 'Extract Symbol', 'endLine': 68}], 'title': 'Extract to inner function in function ''getVideo''', 'command': '_typescript.applyRefactoring'}}, {'kind': 'refactor', 'title': 'Extract to function in module scope', 'command': {'arguments': [{'file': '/foo/bar/file.ts', 'endOffset': 0, 'action': 'function_scope_1', 'startOffset': 1, 'startLine': 65, 'refactor': 'Extract Symbol', 'endLine': 68}], 'title': 'Extract to function in module scope', 'command': '_typescript.applyRefactoring'}}]})
+
+  AssertEqual
+  \ [[0, 'workspace/executeCommand', {'arguments': [{'file': '/foo/bar/file.ts', 'action': 'function_scope_1', 'endOffset': 0, 'refactor': 'Extract Symbol', 'endLine': 68, 'startLine': 65, 'startOffset': 1}], 'command': '_typescript.applyRefactoring'}]],
+  \ g:message_list
+
+
+Execute(Prints message when LSP code action returns no results):
+  call ale#codefix#SetMap({3: {}})
+  call ale#codefix#HandleLSPResponse(1,
+  \ {'id': 3, 'jsonrpc': '2.0', 'result': []})
+
+  AssertEqual g:handle_code_action_called, 0
+  AssertEqual ['echom ''No code actions received from server'''], g:expr_list
+
+Execute(LSP code action requests should be sent):
+  call ale#linter#Reset()
+
+  runtime ale_linters/python/jedils.vim
+  let g:ale_buffer_info = {bufnr(''): {'loclist': [{'lnum': 2, 'col': 5, 'end_lnum': 2, 'end_col': 6, 'code': 2304, 'text': 'oops'}]}}
+  call setpos('.', [bufnr(''), 2, 5, 0])
+
+  " ALECodeAction
+  call ale#codefix#Execute(0)
+
+  " We shouldn't register the callback yet.
+  AssertEqual '''''', string(g:Callback)
+
+  AssertEqual type(function('type')), type(g:InitCallback)
+  call g:InitCallback()
+
+  AssertEqual 'code_actions', g:capability_checked
+  AssertEqual
+  \ 'function(''ale#codefix#HandleLSPResponse'')',
+  \ string(g:Callback)
+  AssertEqual
+  \ [
+  \   [0, 'textDocument/codeAction', {
+  \     'context': {
+  \       'diagnostics': [{'range': {'end': {'character': 6, 'line': 1}, 'start': {'character': 4, 'line': 1}}, 'code': 2304, 'message': 'oops'}]
+  \     },
+  \     'range': {'end': {'character': 5, 'line': 1}, 'start': {'character': 4, 'line': 1}},
+  \     'textDocument': {'uri': ale#path#ToURI(expand('%:p'))}
+  \   }]
+  \ ],
+  \ g:message_list[-1:]
+
+Execute(LSP code action requests should be sent only for error with code):
+  call ale#linter#Reset()
+
+  runtime ale_linters/python/jedils.vim
+  let g:ale_buffer_info = {bufnr(''): {'loclist': [{'lnum': 2, 'col': 5, 'end_lnum': 2, 'end_col': 6, 'code': 2304, 'text': 'oops'}]}}
+  call setpos('.', [bufnr(''), 2, 5, 0])
+
+  " ALECodeAction
+  call ale#codefix#Execute(0)
+
+  " We shouldn't register the callback yet.
+  AssertEqual '''''', string(g:Callback)
+
+  AssertEqual type(function('type')), type(g:InitCallback)
+  call g:InitCallback()
+
+  AssertEqual 'code_actions', g:capability_checked
+  AssertEqual
+  \ 'function(''ale#codefix#HandleLSPResponse'')',
+  \ string(g:Callback)
+  AssertEqual
+  \ [
+  \   [0, 'textDocument/codeAction', {
+  \     'context': {
+  \       'diagnostics': [{'range': {'end': {'character': 6, 'line': 1}, 'start': {'character': 4, 'line': 1}}, 'code': 2304, 'message': 'oops'}]
+  \     },
+  \     'range': {'end': {'character': 5, 'line': 1}, 'start': {'character': 4, 'line': 1}},
+  \     'textDocument': {'uri': ale#path#ToURI(expand('%:p'))}
+  \   }]
+  \ ],
+  \ g:message_list[-1:]
diff --git a/test/test_deno_executable_detection.vader b/test/test_deno_executable_detection.vader
new file mode 100644
index 00000000..edd408b1
--- /dev/null
+++ b/test/test_deno_executable_detection.vader
@@ -0,0 +1,19 @@
+Before:
+  runtime autoload/ale/handlers/deno.vim
+
+After:
+  unlet! g:ale_deno_executable
+
+  call ale#linter#Reset()
+
+Execute(Default executable should be detected correctly):
+  AssertEqual
+  \ 'deno',
+  \ ale#handlers#deno#GetExecutable(bufnr(''))
+
+Execute(User specified executable should override default):
+  let g:ale_deno_executable = '/path/to/deno-bin'
+  AssertEqual
+  \ '/path/to/deno-bin',
+  \ ale#handlers#deno#GetExecutable(bufnr(''))
+
diff --git a/test/test_filetype_linter_defaults.vader b/test/test_filetype_linter_defaults.vader
index e9980536..d4e708ec 100644
--- a/test/test_filetype_linter_defaults.vader
+++ b/test/test_filetype_linter_defaults.vader
@@ -70,3 +70,10 @@ Execute(The defaults for the verilog filetype should be correct):
 Execute(Default aliases for React should be defined):
   AssertEqual ['javascript', 'jsx'], ale#linter#ResolveFiletype('javascriptreact')
   AssertEqual ['typescript', 'tsx'], ale#linter#ResolveFiletype('typescriptreact')
+
+Execute(The defaults for the apkbuild filetype should be correct):
+  AssertEqual ['apkbuild_lint', 'secfixes_check'], GetLinterNames('apkbuild')
+
+  let g:ale_linters_explicit = 1
+
+  AssertEqual [], GetLinterNames('apkbuild')
diff --git a/test/test_floating_preview.vader b/test/test_floating_preview.vader
new file mode 100644
index 00000000..43415556
--- /dev/null
+++ b/test/test_floating_preview.vader
@@ -0,0 +1,92 @@
+Before:
+  let g:ale_floating_preview = 0
+  let g:ale_hover_to_floating_preview = 0
+  let g:ale_detail_to_floating_preview = 0
+
+  runtime autoload/ale/floating_preview.vim
+
+  let g:floated_lines = []
+  let g:floating_preview_show_called = 0
+
+  " Stub out so we can track the call
+  function! ale#floating_preview#Show(lines, ...) abort
+    let g:floating_preview_show_called = 1
+    let g:floated_lines = a:lines
+  endfunction
+
+  let g:ale_buffer_info = {
+  \ bufnr('%'): {
+  \   'loclist': [
+  \     {
+  \       'lnum': 1,
+  \       'col': 10,
+  \       'bufnr': bufnr('%'),
+  \       'vcol': 0,
+  \       'linter_name': 'notalinter',
+  \       'nr': -1,
+  \       'type': 'E',
+  \       'code': 'semi',
+  \       'text': "Missing semicolon.\r",
+  \       'detail': "Every statement should end with a semicolon\nsecond line",
+  \     },
+  \   ],
+  \ }
+  \}
+
+  call ale#linter#Reset()
+  call ale#linter#PreventLoading('javascript')
+
+After:
+  Restore
+
+  let g:ale_floating_preview = 0
+  let g:ale_hover_to_floating_preview = 0
+  let g:ale_detail_to_floating_preview = 0
+
+  call cursor(1, 1)
+
+  let g:ale_buffer_info = {}
+
+  " Close the preview window if it's open.
+  if &filetype is# 'ale-preview'
+    noautocmd :q!
+  endif
+
+  call ale#linter#Reset()
+
+
+Given javascript(A file with warnings/errors):
+  var x = 3 + 12345678
+  var x = 5*2 + parseInt("10");
+  // comment
+
+Execute(Floating preview is used with ALEDetail when g:ale_floating_preview set):
+  let g:ale_floating_preview = 1
+
+  call cursor(1, 10)
+
+  ALEDetail
+
+  let expected = ["Every statement should end with a semicolon", "second line"]
+
+  AssertEqual 1, g:floating_preview_show_called
+  AssertEqual expected, g:floated_lines
+
+Execute(Floating preview is used with ALEDetail when g:ale_detail_to_floating_preview set):
+  let g:ale_detail_to_floating_preview = 1
+
+  call cursor(1, 10)
+
+  ALEDetail
+
+  let expected = ["Every statement should end with a semicolon", "second line"]
+
+  AssertEqual 1, g:floating_preview_show_called
+  AssertEqual expected, g:floated_lines
+
+Execute(Floating preview is not used with ALEDetail by default):
+  call cursor(1, 10)
+
+  ALEDetail
+
+  AssertEqual 0, g:floating_preview_show_called
diff --git a/test/test_hover.vader b/test/test_hover.vader
index 9689cda2..7a9c8d91 100644
--- a/test/test_hover.vader
+++ b/test/test_hover.vader
@@ -7,9 +7,25 @@ Before:
   let g:item_list = []
   let g:show_message_arg_list = []
 
+  let g:ale_floating_preview = 0
+  let g:ale_hover_to_floating_preview = 0
+  let g:ale_detail_to_floating_preview = 0
+
   runtime autoload/ale/linter.vim
   runtime autoload/ale/lsp.vim
+  runtime autoload/ale/lsp_linter.vim
   runtime autoload/ale/util.vim
+  runtime autoload/ale/floating_preview.vim
+  runtime autoload/ale/hover.vim
+
+  let g:floated_lines = []
+  let g:floating_preview_show_called = 0
+
+  " Stub out so we can track the call
+  function! ale#floating_preview#Show(lines, ...) abort
+    let g:floating_preview_show_called = 1
+    let g:floated_lines = a:lines
+  endfunction
 
   function! ale#lsp_linter#StartLSP(buffer, linter, callback) abort
     let g:Callback = a:callback
@@ -50,6 +66,7 @@ Before:
     \)
   endfunction
 
+
 After:
   call ale#hover#SetMap({})
   call ale#test#RestoreDirectory()
@@ -65,6 +82,7 @@ After:
   runtime autoload/ale/lsp_linter.vim
   runtime autoload/ale/lsp.vim
   runtime autoload/ale/util.vim
+  runtime autoload/ale/floating_preview.vim
 
 Given python(Some Python file):
   foo
@@ -101,7 +119,7 @@ Execute(tsserver quickinfo responses will null missing bodies should be handled)
   AssertEqual {}, ale#hover#GetMap()
 
 Execute(tsserver quickinfo displayString values should be displayed):
-  call ale#hover#SetMap({3: {}})
+  call ale#hover#SetMap({3: {'buffer': bufnr('')}})
   call ale#hover#HandleTSServerResponse(
   \ 1,
   \ {
@@ -168,8 +186,30 @@ Execute(LSP hover response with lists of strings and marked strings should be ha
   \], g:show_message_arg_list
   AssertEqual {}, ale#hover#GetMap()
 
+Execute(LSP hover with ale_floating_preview should float):
+  let g:ale_floating_preview = 1
+
+  call HandleValidLSPResult({'contents': "the message\ncontinuing"})
+
+  AssertEqual 1, g:floating_preview_show_called
+  AssertEqual ["the message", "continuing"], g:floated_lines
+
+Execute(LSP hover ale_hover_to_floating_preview should float):
+  let g:ale_hover_to_floating_preview = 1
+
+  call HandleValidLSPResult({'contents': "the message\ncontinuing"})
+
+  AssertEqual 1, g:floating_preview_show_called
+  AssertEqual ["the message", "continuing"], g:floated_lines
+
+
+Execute(LSP hover by default should not float):
+  call HandleValidLSPResult({'contents': "the message\ncontinuing"})
+
+  AssertEqual 0, g:floating_preview_show_called
+
 Execute(tsserver responses for documentation requests should be handled):
-  call ale#hover#SetMap({3: {'show_documentation': 1}})
+  call ale#hover#SetMap({3: {'show_documentation': 1, 'buffer': bufnr('')}})
 
   call ale#hover#HandleTSServerResponse(
   \ 1,
@@ -187,3 +227,46 @@ Execute(tsserver responses for documentation requests should be handled):
   " The preview window should show the text.
   AssertEqual ['foo is a very good method'], ale#test#GetPreviewWindowText()
   silent! pclose
+
+Execute(hover with show_documentation should be in the preview window, not floating):
+  let g:ale_hover_to_floating_preview = 1
+  let g:ale_floating_preview = 1
+
+  call ale#hover#SetMap({3: {'show_documentation': 1, 'buffer': bufnr('')}})
+
+  call ale#hover#HandleTSServerResponse(
+  \ 1,
+  \ {
+  \   'command': 'quickinfo',
+  \   'request_seq': 3,
+  \   'success': v:true,
+  \   'body': {
+  \     'documentation': 'foo is a very good method',
+  \     'displayString': 'foo bar ',
+  \   },
+  \ }
+  \)
+
+  let expected = ["Every statement should end with a semicolon", "second line"]
+
+  AssertEqual 0, g:floating_preview_show_called
+
+Execute(TSServer hover without show_documentation and ale_floating_preview should float):
+  let g:ale_floating_preview = 1
+
+  call ale#hover#SetMap({3: {'buffer': bufnr('')}})
+
+  call ale#hover#HandleTSServerResponse(
+  \ 1,
+  \ {
+  \   'command': 'quickinfo',
+  \   'request_seq': 3,
+  \   'success': v:true,
+  \   'body': {
+  \     'displayString': "the message\ncontinuing",
+  \   },
+  \ }
+  \)
+
+  AssertEqual 1, g:floating_preview_show_called
+  AssertEqual ["the message", "continuing"], g:floated_lines
diff --git a/test/test_lint_on_enter_when_file_changed.vader b/test/test_lint_on_enter_when_file_changed.vader
index 88493005..0d4c4af8 100644
--- a/test/test_lint_on_enter_when_file_changed.vader
+++ b/test/test_lint_on_enter_when_file_changed.vader
@@ -35,7 +35,7 @@ After:
 Execute(The file changed event function should set b:ale_file_changed):
   let g:ale_lint_on_enter = 0
 
-  if has('gui')
+  if has('gui_running')
     new
   else
     e test
diff --git a/test/test_redundant_tsserver_rendering_avoided.vader b/test/test_redundant_tsserver_rendering_avoided.vader
index 6125ebc2..bde5d152 100644
--- a/test/test_redundant_tsserver_rendering_avoided.vader
+++ b/test/test_redundant_tsserver_rendering_avoided.vader
@@ -111,7 +111,7 @@ Execute(An initial list of semantic errors should be handled):
 
   Assert g:ale_handle_loclist_called
 
-Execute(Subsequent empty lists should be ignored):
+Execute(Subsequent empty lists should be ignored - semantic):
   let g:ale_buffer_info[bufnr('')].semantic_loclist = []
 
   call ale#lsp_linter#HandleLSPResponse(1, CreateError('semanticDiag', ''))
@@ -138,3 +138,31 @@ Execute(Non-empty then non-empty semantic errors should be handled):
   call ale#lsp_linter#HandleLSPResponse(1, CreateError('semanticDiag', 'x'))
 
   Assert g:ale_handle_loclist_called
+
+Execute(Subsequent empty lists should be ignored - suggestion):
+  let g:ale_buffer_info[bufnr('')].suggestion_loclist = []
+
+  call ale#lsp_linter#HandleLSPResponse(1, CreateError('suggestionDiag', ''))
+
+  Assert !g:ale_handle_loclist_called
+
+Execute(Empty then non-empty suggestion messages should be handled):
+  let g:ale_buffer_info[bufnr('')].suggestion_loclist = []
+
+  call ale#lsp_linter#HandleLSPResponse(1, CreateError('suggestionDiag', 'x'))
+
+  Assert g:ale_handle_loclist_called
+
+Execute(Non-empty then empt suggestion messages should be handled):
+  let g:ale_buffer_info[bufnr('')].suggestion_loclist = CreateLoclist('x')
+
+  call ale#lsp_linter#HandleLSPResponse(1, CreateError('suggestionDiag', ''))
+
+  Assert g:ale_handle_loclist_called
+
+Execute(Non-empty then non-empty suggestion messages should be handled):
+  let g:ale_buffer_info[bufnr('')].suggestion_loclist = CreateLoclist('x')
+
+  call ale#lsp_linter#HandleLSPResponse(1, CreateError('suggestionDiag', 'x'))
+
+  Assert g:ale_handle_loclist_called
diff --git a/test/test_rename.vader b/test/test_rename.vader
index 2e8b746e..5bc655f4 100644
--- a/test/test_rename.vader
+++ b/test/test_rename.vader
@@ -269,7 +269,7 @@ Execute(tsserver rename requests should be sent):
   \   }]
   \ ],
   \ g:message_list
-  AssertEqual {'42': {'old_name': 'somelongerline', 'new_name': 'a-new-name', 'force_save': 0}},
+  AssertEqual {'42': {'old_name': 'somelongerline', 'new_name': 'a-new-name'}},
   \ ale#rename#GetMap()
 
 Given python(Some Python file):
@@ -470,7 +470,7 @@ Execute(LSP rename requests should be sent):
   let b:ale_linters = ['pyls']
   call setpos('.', [bufnr(''), 1, 5, 0])
 
-  ALERename!
+  ALERename
 
   " We shouldn't register the callback yet.
   AssertEqual '''''', string(g:Callback)
@@ -500,5 +500,5 @@ Execute(LSP rename requests should be sent):
   \ ],
   \ g:message_list
 
-  AssertEqual {'42': {'old_name': 'foo', 'new_name': 'a-new-name', 'force_save': 1}},
+  AssertEqual {'42': {'old_name': 'foo', 'new_name': 'a-new-name'}},
   \ ale#rename#GetMap()
diff --git a/test/test_shell_detection.vader b/test/test_shell_detection.vader
index 697054d0..11d801c3 100644
--- a/test/test_shell_detection.vader
+++ b/test/test_shell_detection.vader
@@ -127,3 +127,51 @@ Execute(The dash dialect should be used for the shell and the base function):
 
 Execute(dash should be used for shellcheck):
   AssertEqual 'dash', ale#handlers#shellcheck#GetDialectArgument(bufnr(''))
+
+Given(A file with a Bash shellcheck shell directive):
+  # shellcheck shell=bash
+
+Execute(bash dialect should be detected appropriately):
+  AssertEqual 'bash', ale#handlers#shellcheck#GetDialectArgument(bufnr(''))
+
+Given(A file with a sh shellcheck shell directive):
+  #shellcheck   shell=sh
+
+Execute(sh dialect should be detected appropriately):
+  AssertEqual 'sh', ale#handlers#shellcheck#GetDialectArgument(bufnr(''))
+
+Given(A file with a tcsh shellcheck shell directive):
+  #   shellcheck   shell=tcsh
+
+Execute(tcsh dialect should be detected appropriately):
+  AssertEqual 'tcsh', ale#handlers#shellcheck#GetDialectArgument(bufnr(''))
+
+Given(A file with a zsh shellcheck shell directive):
+  #   shellcheck shell=zsh
+
+Execute(zsh dialect should be detected appropriately):
+  AssertEqual 'zsh', ale#handlers#shellcheck#GetDialectArgument(bufnr(''))
+
+Given(A file with a csh shellcheck shell directive):
+  # shellcheck shell=csh
+
+Execute(zsh dialect should be detected appropriately):
+  AssertEqual 'csh', ale#handlers#shellcheck#GetDialectArgument(bufnr(''))
+
+Given(A file with a ksh shellcheck shell directive):
+  # shellcheck shell=ksh
+
+Execute(ksh dialect should be detected appropriately):
+  AssertEqual 'ksh', ale#handlers#shellcheck#GetDialectArgument(bufnr(''))
+
+Given(A file with a dash shellcheck shell directive):
+  # shellcheck shell=dash
+
+Execute(dash dialect should be detected appropriately):
+  AssertEqual 'dash', ale#handlers#shellcheck#GetDialectArgument(bufnr(''))
+
+Given(A file with a ash shellcheck shell directive):
+  # shellcheck shell=ash
+
+Execute(dash dialect should be detected for ash that shellcheck does not support):
+  AssertEqual 'dash', ale#handlers#shellcheck#GetDialectArgument(bufnr(''))
diff --git a/test/typescript/test.ts b/test/typescript/test.ts
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/typescript/test.ts
diff --git a/test/typescript/tsconfig.json b/test/typescript/tsconfig.json
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/typescript/tsconfig.json
diff --git a/test/xo-test-files/monorepo/node_modules/xo/cli.js b/test/xo-test-files/monorepo/node_modules/xo/cli.js
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/node_modules/xo/cli.js
diff --git a/test/xo-test-files/monorepo/package.json b/test/xo-test-files/monorepo/package.json
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/package.json
diff --git a/test/xo-test-files/monorepo/packages/a/index.js b/test/xo-test-files/monorepo/packages/a/index.js
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/packages/a/index.js
diff --git a/test/xo-test-files/monorepo/packages/a/index.ts b/test/xo-test-files/monorepo/packages/a/index.ts
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/packages/a/index.ts
diff --git a/test/xo-test-files/monorepo/packages/a/package.json b/test/xo-test-files/monorepo/packages/a/package.json
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/test/xo-test-files/monorepo/packages/a/package.json