#3325 - ale#path#BufferCdString now generates %s:h

24 files changed, 117 insertions, 89 deletions

diff --git a/ale_linters/go/gofmt.vim b/ale_linters/go/gofmt.vim
index a233b422..b313f9ca 100644
--- a/ale_linters/go/gofmt.vim
+++ b/ale_linters/go/gofmt.vim
@@ -6,7 +6,6 @@ function! ale_linters#go#gofmt#GetCommand(buffer) abort
     \   . '%e -e %t'
 endfunction
 
-
 call ale#linter#Define('go', {
 \   'name': 'gofmt',
 \   'output_stream': 'stderr',
diff --git a/autoload/ale/path.vim b/autoload/ale/path.vim
index 4e59ce2f..fed95ccd 100644
--- a/autoload/ale/path.vim
+++ b/autoload/ale/path.vim
@@ -82,15 +82,19 @@ endfunction
 function! ale#path#CdString(directory) abort
     if has('win32')
         return 'cd /d ' . ale#Escape(a:directory) . ' && '
-    else
-        return 'cd ' . ale#Escape(a:directory) . ' && '
     endif
+
+    return 'cd ' . ale#Escape(a:directory) . ' && '
 endfunction
 
 " Output 'cd <buffer_filename_directory> && '
 " This function can be used changing the directory for a linter command.
 function! ale#path#BufferCdString(buffer) abort
-    return ale#path#CdString(fnamemodify(bufname(a:buffer), ':p:h'))
+    if has('win32')
+        return 'cd /d %s:h && '
+    endif
+
+    return 'cd %s:h && '
 endfunction
 
 " Return 1 if a path is an absolute path.
diff --git a/test/command_callback/test_gobuild_command_callback.vader b/test/command_callback/test_gobuild_command_callback.vader
index fdf23866..063f3f2f 100644
--- a/test/command_callback/test_gobuild_command_callback.vader
+++ b/test/command_callback/test_gobuild_command_callback.vader
@@ -11,14 +11,14 @@ After:
 
 Execute(The default commands should be correct):
   AssertLinter 'go',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . 'go test -c -o /dev/null ./'
 
 Execute(Go environment variables should be supported):
   let b:ale_go_go111module = 'on'
 
   AssertLinter 'go',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Env('GO111MODULE', 'on')
   \   . 'go test -c -o /dev/null ./'
 
@@ -28,7 +28,7 @@ Execute(Extra options should be supported):
   let g:ale_go_gobuild_options = '--foo-bar'
 
   AssertLinter 'go',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . 'go test --foo-bar -c -o /dev/null ./'
 
   let g:ale_go_gobuild_options = ''
@@ -37,5 +37,5 @@ Execute(The executable should be configurable):
   let g:ale_go_go_executable = 'foobar'
 
   AssertLinter 'foobar',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . 'foobar test -c -o /dev/null ./'
diff --git a/test/command_callback/test_gofmt_command_callback.vader b/test/command_callback/test_gofmt_command_callback.vader
index 4da1f6c8..88b2e6b0 100644
--- a/test/command_callback/test_gofmt_command_callback.vader
+++ b/test/command_callback/test_gofmt_command_callback.vader
@@ -1,5 +1,8 @@
 Before:
   Save g:ale_go_go111module
+  Save b:ale_go_go111module
+
+  let b:ale_go_go111module = ''
 
   call ale#assert#SetUpLinterTest('go', 'gofmt')
   call ale#test#SetFilename('../go_files/testfile2.go')
diff --git a/test/command_callback/test_golangci_lint_command_callback.vader b/test/command_callback/test_golangci_lint_command_callback.vader
index 7f1e2ac4..37fb1f7d 100644
--- a/test/command_callback/test_golangci_lint_command_callback.vader
+++ b/test/command_callback/test_golangci_lint_command_callback.vader
@@ -13,7 +13,7 @@ After:
 
 Execute(The golangci-lint defaults should be correct):
   AssertLinter 'golangci-lint',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Escape('golangci-lint')
   \   . ' run ' . ale#Escape(expand('%' . ':t'))
   \   . ' --enable-all'
@@ -22,7 +22,7 @@ Execute(The golangci-lint callback should use a configured executable):
   let b:ale_go_golangci_lint_executable = 'something else'
 
   AssertLinter 'something else',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Escape('something else')
   \   . ' run ' . ale#Escape(expand('%' . ':t'))
   \   . ' --enable-all'
@@ -31,7 +31,7 @@ Execute(The golangci-lint callback should use configured options):
   let b:ale_go_golangci_lint_options = '--foobar'
 
   AssertLinter 'golangci-lint',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Escape('golangci-lint')
   \   . ' run ' . ale#Escape(expand('%' . ':t'))
   \   . ' --foobar'
@@ -40,7 +40,7 @@ Execute(The golangci-lint callback should support environment variables):
   let b:ale_go_go111module = 'on'
 
   AssertLinter 'golangci-lint',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Env('GO111MODULE', 'on')
   \   . ale#Escape('golangci-lint')
   \   . ' run ' . ale#Escape(expand('%' . ':t'))
@@ -50,5 +50,5 @@ Execute(The golangci-lint `lint_package` option should use the correct command):
   let b:ale_go_golangci_lint_package = 1
 
   AssertLinter 'golangci-lint',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Escape('golangci-lint') . ' run --enable-all'
diff --git a/test/command_callback/test_gometalinter_command_callback.vader b/test/command_callback/test_gometalinter_command_callback.vader
index d922efc6..567997d8 100644
--- a/test/command_callback/test_gometalinter_command_callback.vader
+++ b/test/command_callback/test_gometalinter_command_callback.vader
@@ -13,7 +13,7 @@ After:
 
 Execute(The gometalinter defaults should be correct):
   AssertLinter 'gometalinter',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Escape('gometalinter')
   \   . ' --include=' . ale#Escape(ale#util#EscapePCRE(expand('%' . ':t')))
   \   . ' .'
@@ -22,7 +22,7 @@ Execute(The gometalinter callback should use a configured executable):
   let b:ale_go_gometalinter_executable = 'something else'
 
   AssertLinter 'something else',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Escape('something else')
   \   . ' --include=' . ale#Escape(ale#util#EscapePCRE(expand('%' . ':t')))
   \   . ' .'
@@ -31,7 +31,7 @@ Execute(The gometalinter callback should use configured options):
   let b:ale_go_gometalinter_options = '--foobar'
 
   AssertLinter 'gometalinter',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Escape('gometalinter')
   \   . ' --include=' . ale#Escape(ale#util#EscapePCRE(expand('%' . ':t')))
   \   . ' --foobar' . ' .'
@@ -40,7 +40,7 @@ Execute(The gometalinter should use configured environment variables):
   let b:ale_go_go111module = 'off'
 
   AssertLinter 'gometalinter',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Env('GO111MODULE', 'off')
   \   . ale#Escape('gometalinter')
   \   . ' --include=' . ale#Escape(ale#util#EscapePCRE(expand('%' . ':t')))
@@ -50,5 +50,5 @@ Execute(The gometalinter `lint_package` option should use the correct command):
   let b:ale_go_gometalinter_lint_package = 1
 
   AssertLinter 'gometalinter',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Escape('gometalinter') . ' .'
diff --git a/test/command_callback/test_gosimple_command_callback.vader b/test/command_callback/test_gosimple_command_callback.vader
index ee89eed8..b006f783 100644
--- a/test/command_callback/test_gosimple_command_callback.vader
+++ b/test/command_callback/test_gosimple_command_callback.vader
@@ -11,11 +11,12 @@ After:
 
 Execute(The default gosimple command should be correct):
   AssertLinter 'gosimple',
-  \ ale#path#CdString(expand('%:p:h')) . ' gosimple .'
+  \ ale#path#BufferCdString(bufnr(''))
+  \ . ' gosimple .'
 
 Execute(The gosimple command should support Go environment variables):
   let b:ale_go_go111module = 'on'
 
   AssertLinter 'gosimple',
-  \ ale#path#CdString(expand('%:p:h')) . ' '
-  \ . ale#Env('GO111MODULE', 'on') . 'gosimple .'
+  \ ale#path#BufferCdString(bufnr(''))
+  \ . ' ' . ale#Env('GO111MODULE', 'on') . 'gosimple .'
diff --git a/test/command_callback/test_gotype_command_callback.vader b/test/command_callback/test_gotype_command_callback.vader
index 1334fcff..204197d9 100644
--- a/test/command_callback/test_gotype_command_callback.vader
+++ b/test/command_callback/test_gotype_command_callback.vader
@@ -11,7 +11,8 @@ After:
 
 Execute(The default gotype command should be correct):
   AssertLinter 'gotype',
-  \ ale#path#CdString(expand('%:p:h')) . ' gotype -e .'
+  \ ale#path#BufferCdString(bufnr(''))
+  \ . ' gotype -e .'
 
 Execute(The gotype callback should ignore test files):
   call ale#test#SetFilename('bla_test.go')
@@ -22,6 +23,6 @@ Execute(The gotype callback should support Go environment variables):
   let b:ale_go_go111module = 'on'
 
   AssertLinter 'gotype',
-  \ ale#path#CdString(expand('%:p:h')) . ' '
-  \ . ale#Env('GO111MODULE', 'on')
+  \ ale#path#BufferCdString(bufnr(''))
+  \ . ' ' . ale#Env('GO111MODULE', 'on')
   \ . 'gotype -e .'
diff --git a/test/command_callback/test_govet_command_callback.vader b/test/command_callback/test_govet_command_callback.vader
index 59022180..0e1ea092 100644
--- a/test/command_callback/test_govet_command_callback.vader
+++ b/test/command_callback/test_govet_command_callback.vader
@@ -13,22 +13,22 @@ After:
   call ale#assert#TearDownLinterTest()
 
 Execute(The default command should be correct):
-  AssertLinter 'go', ale#path#CdString(expand('%:p:h')) . ' go vet  .'
+  AssertLinter 'go', ale#path#BufferCdString(bufnr('')) . ' go vet  .'
 
 Execute(Extra options should be supported):
   let g:ale_go_govet_options = '--foo-bar'
 
-  AssertLinter 'go', ale#path#CdString(expand('%:p:h')) . ' go vet  --foo-bar .'
+  AssertLinter 'go', ale#path#BufferCdString(bufnr('')) . ' go vet  --foo-bar .'
 
 Execute(The executable should be configurable):
   let g:ale_go_go_executable = 'foobar'
 
-  AssertLinter 'foobar', ale#path#CdString(expand('%:p:h')) . ' foobar vet  .'
+  AssertLinter 'foobar', ale#path#BufferCdString(bufnr('')) . ' foobar vet  .'
 
 Execute(Go environment variables should be supported):
   let b:ale_go_go111module = 'on'
 
   AssertLinter 'go',
-  \ ale#path#CdString(expand('%:p:h')) . ' '
+  \ ale#path#BufferCdString(bufnr('')) . ' '
   \ . ale#Env('GO111MODULE', 'on')
   \ . 'go vet  .'
diff --git a/test/command_callback/test_graphql_gqlint_command_callbacks.vader b/test/command_callback/test_graphql_gqlint_command_callbacks.vader
index 0f4e9770..e8ed0e5d 100644
--- a/test/command_callback/test_graphql_gqlint_command_callbacks.vader
+++ b/test/command_callback/test_graphql_gqlint_command_callbacks.vader
@@ -6,6 +6,6 @@ After:
 
 Execute(The linter should run from the directory of the file in the buffer):
   AssertLinter 'gqlint',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . 'gqlint --reporter=simple'
   \   . ' %t'
diff --git a/test/command_callback/test_javac_command_callback.vader b/test/command_callback/test_javac_command_callback.vader
index d2eebf7a..ac898e5f 100644
--- a/test/command_callback/test_javac_command_callback.vader
+++ b/test/command_callback/test_javac_command_callback.vader
@@ -3,7 +3,7 @@ Before:
   call ale#test#SetFilename('dummy.java')
 
   let g:cp_sep = has('unix') ? ':' : ';'
-  let g:prefix = ale#path#CdString(expand('%:p:h'))
+  let g:prefix = ale#path#BufferCdString(bufnr(''))
   \ . ale#Escape('javac') . ' -Xlint'
 
   function! GetCommand(previous_output) abort
@@ -51,7 +51,7 @@ Execute(The executable should be configurable):
   let g:ale_java_javac_executable = 'foobar'
 
   AssertLinter 'foobar',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \ . ale#Escape('foobar') . ' -Xlint'
   \ . ' -d ' . ale#Escape('TEMP_DIR') . ' %t'
 
@@ -197,7 +197,8 @@ Execute(The javac callback should combine discovered sourcepath and manual ones)
   let b:command = ale_linters#java#javac#GetCommand(bufnr(''), [], {})
 
   AssertEqual
-  \ ale#path#CdString(expand('%:p:h')) . ale#Escape('javac') . ' -Xlint'
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('javac') . ' -Xlint'
   \   . ' -sourcepath ' . ale#Escape(join([
   \     ale#path#Simplify(g:dir . '/java_paths/src/main/java/'),
   \     ale#path#Simplify(g:dir . '/java_paths/build/gen/main/'),
@@ -210,7 +211,8 @@ Execute(The javac callback should combine discovered sourcepath and manual ones)
   let b:command = ale_linters#java#javac#GetCommand(bufnr(''), [], {})
 
   AssertEqual
-  \ ale#path#CdString(expand('%:p:h')) . ale#Escape('javac') . ' -Xlint'
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('javac') . ' -Xlint'
   \   . ' -sourcepath ' . ale#Escape(join([
   \     ale#path#Simplify(g:dir . '/java_paths/src/main/java/'),
   \     ale#path#Simplify(g:dir . '/java_paths/build/gen/main/'),
@@ -223,7 +225,8 @@ Execute(The javac callback should combine discovered sourcepath and manual ones)
   let b:command = ale_linters#java#javac#GetCommand(bufnr(''), [], {})
 
   AssertEqual
-  \ ale#path#CdString(expand('%:p:h')) . ale#Escape('javac') . ' -Xlint'
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('javac') . ' -Xlint'
   \   . ' -sourcepath ' . ale#Escape(join([
   \     ale#path#Simplify(g:dir . '/java_paths/src/main/java/'),
   \     ale#path#Simplify(g:dir . '/java_paths/build/gen/main/')
@@ -238,7 +241,8 @@ Execute(The javac callback should combine discovered sourcepath and manual ones)
   let b:command = ale_linters#java#javac#GetCommand(bufnr(''), [], {})
 
   AssertEqual
-  \ ale#path#CdString(expand('%:p:h')) . ale#Escape('javac') . ' -Xlint'
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('javac') . ' -Xlint'
   \   . ' -sourcepath ' . ale#Escape(join([
   \     ale#path#Simplify(g:dir . '/java_paths/src/main/java/'),
   \     ale#path#Simplify(g:dir . '/java_paths/build/gen/main/'),
@@ -253,7 +257,8 @@ Execute(The javac callback should detect source directories):
   call ale#engine#InitBufferInfo(bufnr(''))
 
   AssertLinter 'javac',
-  \ ale#path#CdString(expand('%:p:h')) . ale#Escape('javac') . ' -Xlint'
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('javac') . ' -Xlint'
   \   . ' -sourcepath ' . ale#Escape(
   \     ale#path#Simplify(g:dir . '/java_paths/src/main/java/')
   \   )
@@ -272,7 +277,8 @@ Execute(The javac callback should combine detected source directories and classp
   \], {})
 
   AssertEqual
-  \ ale#path#CdString(expand('%:p:h')) . ale#Escape('javac') . ' -Xlint'
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('javac') . ' -Xlint'
   \   . ' -cp ' . ale#Escape(join(['/foo/bar.jar', '/xyz/abc.jar'], g:cp_sep))
   \   . ' -sourcepath ' . ale#Escape(
   \     ale#path#Simplify(g:dir . '/java_paths/src/main/java/')
@@ -294,7 +300,8 @@ Execute(The javac callback should include src/test/java for test paths):
   call ale#engine#InitBufferInfo(bufnr(''))
 
   AssertLinter 'javac',
-  \ ale#path#CdString(expand('%:p:h')) . ale#Escape('javac') . ' -Xlint'
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('javac') . ' -Xlint'
   \   . ' -sourcepath ' . ale#Escape(join([
   \     ale#path#Simplify(g:dir . '/java_paths/src/main/java/'),
   \     ale#path#Simplify(g:dir . '/java_paths/src/test/java/'),
@@ -307,7 +314,8 @@ Execute(The javac callback should include src/main/jaxb when available):
   call ale#engine#InitBufferInfo(bufnr(''))
 
   AssertLinter 'javac',
-  \ ale#path#CdString(expand('%:p:h')) . ale#Escape('javac') . ' -Xlint'
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('javac') . ' -Xlint'
   \   . ' -sourcepath ' . ale#Escape(join([
   \     ale#path#Simplify(g:dir . '/java_paths_with_jaxb/src/main/java/'),
   \     ale#path#Simplify(g:dir . '/java_paths_with_jaxb/src/main/jaxb/'),
@@ -320,7 +328,8 @@ Execute(The javac callback should add -sourcepath even if src/java/main doesn't
   call ale#engine#InitBufferInfo(bufnr(''))
 
   AssertLinter 'javac',
-  \ ale#path#CdString(expand('%:p:h')) . ale#Escape('javac') . ' -Xlint'
+  \ ale#path#BufferCdString(bufnr(''))
+  \   . ale#Escape('javac') . ' -Xlint'
   \   . ' -sourcepath ' . ale#Escape(join([
   \     ale#path#Simplify(g:dir . '/java_paths_no_main/src/test/java/'),
   \   ], g:cp_sep))
diff --git a/test/command_callback/test_lintr_command_callback.vader b/test/command_callback/test_lintr_command_callback.vader
index 187d3875..ac4b419b 100644
--- a/test/command_callback/test_lintr_command_callback.vader
+++ b/test/command_callback/test_lintr_command_callback.vader
@@ -6,7 +6,7 @@ After:
 
 Execute(The default lintr command should be correct):
   AssertLinter 'Rscript',
-  \   ale#path#CdString(getcwd())
+  \   ale#path#BufferCdString(bufnr(''))
   \   . 'Rscript --vanilla -e '
   \   . ale#Escape('suppressPackageStartupMessages(library(lintr));'
   \   .            'lint(cache = FALSE, commandArgs(TRUE), '
@@ -17,7 +17,7 @@ Execute(The lintr options should be configurable):
   let b:ale_r_lintr_options = 'with_defaults(object_usage_linter = NULL)'
 
   AssertLinter 'Rscript',
-  \   ale#path#CdString(getcwd())
+  \   ale#path#BufferCdString(bufnr(''))
   \   . 'Rscript --vanilla -e '
   \   . ale#Escape('suppressPackageStartupMessages(library(lintr));'
   \   .            'lint(cache = FALSE, commandArgs(TRUE), '
@@ -28,7 +28,7 @@ Execute(If the lint_package flag is set, lintr::lint_package should be called):
   let b:ale_r_lintr_lint_package = 1
 
   AssertLinter 'Rscript',
-  \   ale#path#CdString(getcwd())
+  \   ale#path#BufferCdString(bufnr(''))
   \   . 'Rscript --vanilla -e '
   \   . ale#Escape('suppressPackageStartupMessages(library(lintr));'
   \   .            'lint_package(cache = FALSE, '
diff --git a/test/command_callback/test_mypy_command_callback.vader b/test/command_callback/test_mypy_command_callback.vader
index afa9f9af..b9b6ae70 100644
--- a/test/command_callback/test_mypy_command_callback.vader
+++ b/test/command_callback/test_mypy_command_callback.vader
@@ -75,14 +75,14 @@ Execute(Setting executable to 'pipenv' appends 'run mypy'):
   let g:ale_python_mypy_executable = 'path/to/pipenv'
 
   AssertLinter 'path/to/pipenv',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('path/to/pipenv') . ' run mypy'
   \   . ' --show-column-numbers  --shadow-file %s %t %s'
 
 Execute(Pipenv is detected when python_mypy_auto_pipenv is set):
   let g:ale_python_mypy_auto_pipenv = 1
-  call ale#test#SetFilename('/testplugin/test/python_fixtures/pipenv/whatever.py')
+  call ale#test#SetFilename('../python_fixtures/pipenv/whatever.py')
 
   AssertLinter 'pipenv',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('pipenv') . ' run mypy --show-column-numbers  --shadow-file %s %t %s'
diff --git a/test/command_callback/test_pydocstyle_command_callback.vader b/test/command_callback/test_pydocstyle_command_callback.vader
index 7e0df9ca..02177f36 100644
--- a/test/command_callback/test_pydocstyle_command_callback.vader
+++ b/test/command_callback/test_pydocstyle_command_callback.vader
@@ -1,39 +1,40 @@
 Before:
   call ale#assert#SetUpLinterTest('python', 'pydocstyle')
+  call ale#test#SetFilename('test.py')
 
 After:
   call ale#assert#TearDownLinterTest()
 
 Execute(The pydocstyle command callback should return default string):
   AssertLinter 'pydocstyle',
-  \ ale#path#BufferCdString(bufnr(''))
-  \   . ale#Escape('pydocstyle') . '  ' . ale#Escape('dummy.txt')
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
+  \   . ale#Escape('pydocstyle') . '  ' . ale#Escape('test.py')
 
 Execute(The pydocstyle command callback should allow options):
   let g:ale_python_pydocstyle_options = '--verbose'
 
   AssertLinter 'pydocstyle',
-  \ ale#path#BufferCdString(bufnr(''))
-  \   . ale#Escape('pydocstyle') . ' --verbose ' . ale#Escape('dummy.txt')
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
+  \   . ale#Escape('pydocstyle') . ' --verbose ' . ale#Escape('test.py')
 
 Execute(The pydocstyle executable should be configurable):
   let g:ale_python_pydocstyle_executable = '~/.local/bin/pydocstyle'
 
   AssertLinter '~/.local/bin/pydocstyle',
-  \ ale#path#BufferCdString(bufnr(''))
-  \   . ale#Escape('~/.local/bin/pydocstyle') . '  ' . ale#Escape('dummy.txt')
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
+  \   . ale#Escape('~/.local/bin/pydocstyle') . '  ' . ale#Escape('test.py')
 
 Execute(Setting executable to 'pipenv' appends 'run pydocstyle'):
   let g:ale_python_pydocstyle_executable = 'path/to/pipenv'
 
   AssertLinter 'path/to/pipenv',
-  \ ale#path#BufferCdString(bufnr(''))
-  \   . ale#Escape('path/to/pipenv') . ' run pydocstyle  ' . ale#Escape('dummy.txt')
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
+  \   . ale#Escape('path/to/pipenv') . ' run pydocstyle  ' . ale#Escape('test.py')
 
 Execute(Pipenv is detected when python_pydocstyle_auto_pipenv is set):
   let g:ale_python_pydocstyle_auto_pipenv = 1
-  call ale#test#SetFilename('/testplugin/test/python_fixtures/pipenv/whatever.py')
+  call ale#test#SetFilename('../python_fixtures/pipenv/whatever.py')
 
   AssertLinter 'pipenv',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('pipenv') . ' run pydocstyle  ' . ale#Escape('whatever.py')
diff --git a/test/command_callback/test_pylama_command_callback.vader b/test/command_callback/test_pylama_command_callback.vader
index 417cb5c9..0aea9a93 100644
--- a/test/command_callback/test_pylama_command_callback.vader
+++ b/test/command_callback/test_pylama_command_callback.vader
@@ -14,7 +14,7 @@ After:
 
 Execute(The pylama command callback should return a default):
   AssertLinter 'pylama',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('pylama') . b:command_tail
 
 Execute(The option for disabling changing directories should work):
@@ -26,14 +26,14 @@ Execute(The pylama executable should be configurable, and escaped properly):
   let g:ale_python_pylama_executable = 'executable with spaces'
 
   AssertLinter 'executable with spaces',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('executable with spaces') . b:command_tail
 
 Execute(The pylama command callback should let you set options):
   let g:ale_python_pylama_options = '--some-option'
 
   AssertLinter 'pylama',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('pylama') . ' --some-option' . b:command_tail
 
 Execute(The pylama command callback should switch directories to the detected project root):
@@ -73,13 +73,13 @@ Execute(Setting executable to 'pipenv' appends 'run pylama'):
   let g:ale_python_pylama_executable = 'path/to/pipenv'
 
   AssertLinter 'path/to/pipenv',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('path/to/pipenv') . ' run pylama' . b:command_tail
 
 Execute(Pipenv is detected when python_pylama_auto_pipenv is set):
   let g:ale_python_pylama_auto_pipenv = 1
-  call ale#test#SetFilename('/testplugin/test/python_fixtures/pipenv/whatever.py')
+  call ale#test#SetFilename('../python_fixtures/pipenv/whatever.py')
 
   AssertLinter 'pipenv',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('pipenv') . ' run pylama' . b:command_tail
diff --git a/test/command_callback/test_pylint_command_callback.vader b/test/command_callback/test_pylint_command_callback.vader
index c41c8398..755dd292 100644
--- a/test/command_callback/test_pylint_command_callback.vader
+++ b/test/command_callback/test_pylint_command_callback.vader
@@ -1,4 +1,8 @@
 Before:
+  Save g:ale_python_auto_pipenv
+
+  let g:ale_python_auto_pipenv = 0
+
   call ale#assert#SetUpLinterTest('python', 'pylint')
 
   let b:bin_dir = has('win32') ? 'Scripts' : 'bin'
@@ -13,7 +17,7 @@ After:
 
 Execute(The pylint callbacks should return the correct default values):
   AssertLinter 'pylint',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('pylint') . ' ' . b:command_tail
 
 Execute(The option for disabling changing directories should work):
@@ -25,14 +29,14 @@ Execute(The pylint executable should be configurable, and escaped properly):
   let g:ale_python_pylint_executable = 'executable with spaces'
 
   AssertLinter 'executable with spaces',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('executable with spaces') . ' ' . b:command_tail
 
 Execute(The pylint command callback should let you set options):
   let g:ale_python_pylint_options = '--some-option'
 
   AssertLinter 'pylint',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('pylint') . ' --some-option' . b:command_tail
 
 Execute(The pylint callbacks shouldn't detect virtualenv directories where they don't exist):
@@ -65,15 +69,15 @@ Execute(Setting executable to 'pipenv' appends 'run pylint'):
   let g:ale_python_pylint_executable = 'path/to/pipenv'
 
   AssertLinter 'path/to/pipenv',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('path/to/pipenv') . ' run pylint'
   \   . '  --output-format text --msg-template="{path}:{line}:{column}: {msg_id} ({symbol}) {msg}" --reports n %s'
 
 Execute(Pipenv is detected when python_pylint_auto_pipenv is set):
   let g:ale_python_pylint_auto_pipenv = 1
-  call ale#test#SetFilename('/testplugin/test/python_fixtures/pipenv/whatever.py')
+  call ale#test#SetFilename('../python_fixtures/pipenv/whatever.py')
 
   AssertLinter 'pipenv',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('pipenv') . ' run pylint'
   \   . '  --output-format text --msg-template="{path}:{line}:{column}: {msg_id} ({symbol}) {msg}" --reports n %s'
diff --git a/test/command_callback/test_shellcheck_command_callback.vader b/test/command_callback/test_shellcheck_command_callback.vader
index 1d5b056b..9fb5303a 100644
--- a/test/command_callback/test_shellcheck_command_callback.vader
+++ b/test/command_callback/test_shellcheck_command_callback.vader
@@ -2,7 +2,7 @@ Before:
   call ale#assert#SetUpLinterTest('sh', 'shellcheck')
   call ale#test#SetFilename('test.sh')
 
-  let b:prefix = ale#path#CdString(ale#path#Simplify(g:dir))
+  let b:prefix = ale#path#BufferCdString(bufnr(''))
   let b:suffix = ' -f gcc -'
 
 After:
diff --git a/test/command_callback/test_staticcheck_command_callback.vader b/test/command_callback/test_staticcheck_command_callback.vader
index ae0d3584..871a5510 100644
--- a/test/command_callback/test_staticcheck_command_callback.vader
+++ b/test/command_callback/test_staticcheck_command_callback.vader
@@ -11,7 +11,7 @@ After:
 
 Execute(The staticcheck callback should return the right defaults):
   AssertLinter 'staticcheck',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . 'staticcheck '
   \   . ale#Escape(expand('%' . ':t'))
 
@@ -19,7 +19,7 @@ Execute(The staticcheck callback should use configured options):
   let b:ale_go_staticcheck_options = '-test'
 
   AssertLinter 'staticcheck',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . 'staticcheck '
   \   . '-test ' . ale#Escape(expand('%' . ':t'))
 
@@ -27,13 +27,14 @@ Execute(The staticcheck `lint_package` option should use the correct command):
   let b:ale_go_staticcheck_lint_package = 1
 
   AssertLinter 'staticcheck',
-  \ ale#path#CdString(expand('%:p:h')) . 'staticcheck .',
+  \ ale#path#BufferCdString(bufnr(''))
+  \ . 'staticcheck .',
 
 Execute(The staticcheck callback should use the `GO111MODULE` option if set):
   let b:ale_go_go111module = 'off'
 
   AssertLinter 'staticcheck',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Env('GO111MODULE', 'off')
   \   . 'staticcheck '
   \   . ale#Escape(expand('%' . ':t'))
@@ -42,6 +43,6 @@ Execute(The staticcheck callback should use the `GO111MODULE` option if set):
   let b:ale_go_staticcheck_lint_package = 1
 
   AssertLinter 'staticcheck',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Env('GO111MODULE', 'off')
   \   . 'staticcheck .'
diff --git a/test/command_callback/test_tslint_command_callback.vader b/test/command_callback/test_tslint_command_callback.vader
index 229ccc96..cc5d2666 100644
--- a/test/command_callback/test_tslint_command_callback.vader
+++ b/test/command_callback/test_tslint_command_callback.vader
@@ -7,14 +7,14 @@ After:
 
 Execute(The default tslint command should be correct):
   AssertLinter 'tslint',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Escape('tslint') . ' --format json %t'
 
 Execute(The rules directory option should be included if set):
   let b:ale_typescript_tslint_rules_dir = '/foo/bar'
 
   AssertLinter 'tslint',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Escape('tslint') . ' --format json'
   \   . ' -r ' . ale#Escape('/foo/bar')
   \   . ' %t'
@@ -23,5 +23,5 @@ Execute(The executable should be configurable and escaped):
   let b:ale_typescript_tslint_executable = 'foo bar'
 
   AssertLinter 'foo bar',
-  \ ale#path#CdString(expand('%:p:h'))
+  \ ale#path#BufferCdString(bufnr(''))
   \   . ale#Escape('foo bar') . ' --format json %t'
diff --git a/test/command_callback/test_vulture_command_callback.vader b/test/command_callback/test_vulture_command_callback.vader
index d6c866b9..bacf8f12 100644
--- a/test/command_callback/test_vulture_command_callback.vader
+++ b/test/command_callback/test_vulture_command_callback.vader
@@ -12,7 +12,7 @@ After:
 
 Execute(The vulture command callback should lint file directory by default):
   AssertLinter 'vulture',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('vulture') . '  .'
 
 Execute(The vulture command callback should lint project root, when present):
@@ -31,14 +31,14 @@ Execute(The vulture executable should be configurable, and escaped properly):
   let g:ale_python_vulture_executable = 'executable with spaces'
 
   AssertLinter 'executable with spaces',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('executable with spaces') . '  .'
 
 Execute(The vulture command callback should let you set options):
   let g:ale_python_vulture_options = '--some-option'
 
   AssertLinter 'vulture',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('vulture') . ' --some-option .'
 
 Execute(The vulture command callback should detect virtualenv directories and switch to the project root):
@@ -64,5 +64,5 @@ Execute(Setting executable to 'pipenv' appends 'run vulture'):
   let g:ale_python_vulture_executable = 'path/to/pipenv'
 
   AssertLinter 'path/to/pipenv',
-  \ ale#path#BufferCdString(bufnr(''))
+  \ ale#path#CdString(expand('#' . bufnr('') . ':p:h'))
   \   . ale#Escape('path/to/pipenv') . ' run vulture' . '  .'
diff --git a/test/fixers/test_isort_fixer_callback.vader b/test/fixers/test_isort_fixer_callback.vader
index 50818621..7f389dcf 100644
--- a/test/fixers/test_isort_fixer_callback.vader
+++ b/test/fixers/test_isort_fixer_callback.vader
@@ -4,6 +4,7 @@ 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 = ''
 
   call ale#test#SetDirectory('/testplugin/test/fixers')
   silent cd ..
@@ -27,7 +28,7 @@ Execute(The isort callback should return the correct default values):
   silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.py')
   AssertEqual
   \ {
-  \   'command': ale#path#CdString(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/subdir/foo'))
+  \   'command': ale#path#BufferCdString(bufnr(''))
   \     . ale#Escape(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/env/' . b:bin_dir . '/isort')) . ' -',
   \ },
   \ ale#fixers#isort#Fix(bufnr(''))
@@ -42,7 +43,7 @@ Execute(The isort callback should respect custom options):
   silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.py')
   AssertEqual
   \ {
-  \   'command': ale#path#CdString(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/subdir/foo'))
+  \   'command': ale#path#BufferCdString(bufnr(''))
   \     . ale#Escape(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/env/' . b:bin_dir . '/isort'))
   \     . ' --multi-line=3 --trailing-comma -',
   \ },
diff --git a/test/fixers/test_prettier_eslint_fixer.callback.vader b/test/fixers/test_prettier_eslint_fixer.callback.vader
index f7bb3c61..be8f04e3 100644
--- a/test/fixers/test_prettier_eslint_fixer.callback.vader
+++ b/test/fixers/test_prettier_eslint_fixer.callback.vader
@@ -73,7 +73,7 @@ Execute(The new --stdin-filepath option should be used when the version is new e
   GivenCommandOutput ['4.4.0']
   AssertFixer
   \ {
-  \   'command': ale#path#CdString(expand('%:p:h'))
+  \   'command': ale#path#BufferCdString(bufnr(''))
   \     . ale#Escape('prettier-eslint')
   \     . ' --eslint-config-path ' . ale#Escape(ale#path#Simplify(g:dir . '/eslint-test-files/react-app/.eslintrc.js'))
   \     . ' --stdin-filepath %s --stdin',
@@ -83,7 +83,7 @@ Execute(The version number should be cached):
   GivenCommandOutput ['4.4.0']
   AssertFixer
   \ {
-  \   'command': ale#path#CdString(expand('%:p:h'))
+  \   'command': ale#path#BufferCdString(bufnr(''))
   \     . ale#Escape('prettier-eslint')
   \     . ' --stdin-filepath %s --stdin',
   \ }
@@ -91,7 +91,7 @@ Execute(The version number should be cached):
   GivenCommandOutput []
   AssertFixer
   \ {
-  \   'command': ale#path#CdString(expand('%:p:h'))
+  \   'command': ale#path#BufferCdString(bufnr(''))
   \     . ale#Escape('prettier-eslint')
   \     . ' --stdin-filepath %s --stdin',
   \ }
diff --git a/test/fixers/test_stylelint_fixer_callback.vader b/test/fixers/test_stylelint_fixer_callback.vader
index f677cdf7..8fbd8a51 100644
--- a/test/fixers/test_stylelint_fixer_callback.vader
+++ b/test/fixers/test_stylelint_fixer_callback.vader
@@ -1,4 +1,8 @@
 Before:
+  Save g:ale_stylelint_options
+
+  let g:ale_stylelint_options = ''
+
   call ale#assert#SetUpFixerTest('css', 'stylelint')
 
 After:
@@ -10,7 +14,7 @@ Execute(The stylelint callback should return the correct default values):
   AssertFixer
   \ {
   \   'read_temporary_file': 1,
-  \   'command': ale#path#CdString(expand('%:p:h'))
+  \   'command': ale#path#BufferCdString(bufnr(''))
   \     . (has('win32') ? 'node.exe ' : '')
   \     . ale#Escape(ale#path#Simplify(g:dir . '/../eslint-test-files/react-app/node_modules/stylelint/bin/stylelint.js'))
   \     . ' %t'
@@ -24,7 +28,7 @@ Execute(The stylelint callback should include custom stylelint options):
   AssertFixer
   \ {
   \   'read_temporary_file': 1,
-  \   'command': ale#path#CdString(expand('%:p:h'))
+  \   'command': ale#path#BufferCdString(bufnr(''))
   \     . (has('win32') ? 'node.exe ' : '')
   \     . ale#Escape(ale#path#Simplify(g:dir . '/../eslint-test-files/react-app/node_modules/stylelint/bin/stylelint.js'))
   \     . ' %t'
diff --git a/test/util/test_cd_string_commands.vader b/test/util/test_cd_string_commands.vader
index f2102e48..85c5065f 100644
--- a/test/util/test_cd_string_commands.vader
+++ b/test/util/test_cd_string_commands.vader
@@ -16,5 +16,5 @@ Execute(BufferCdString should output the correct command string):
   call ale#test#SetFilename('foo.txt')
 
   AssertEqual
-  \ has('unix') ? 'cd ' . ale#Escape(g:dir) . ' && ' : 'cd /d ' . ale#Escape(g:dir) . ' && ',
+  \ has('unix') ? 'cd %s:h && ' : 'cd /d %s:h && ',
   \ ale#path#BufferCdString(bufnr(''))