Add elm-format as a new fixer (#916)

* Add elm-format as a new fixer

1 files changed, 75 insertions, 0 deletions

diff --git a/test/fixers/test_elm_format_fixer_callback.vader b/test/fixers/test_elm_format_fixer_callback.vader
new file mode 100644
index 00000000..b8b9ed00
--- /dev/null
+++ b/test/fixers/test_elm_format_fixer_callback.vader
@@ -0,0 +1,75 @@
+Before:
+  call ale#test#SetDirectory('/testplugin/test/fixers')
+
+After:
+  unlet! b:ale_elm_format_executable
+  unlet! b:ale_elm_format_use_global
+  unlet! b:ale_elm_format_options
+
+  call ale#test#RestoreDirectory()
+
+Execute(The elm-format command should have default params):
+  call ale#test#SetFilename('../elm-test-files/src/subdir/testfile.elm')
+
+  AssertEqual
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command':
+  \     ale#Escape(simplify(g:dir . '/../elm-test-files/node_modules/.bin/elm-format'))
+  \     . ' %t --yes',
+  \ },
+  \ ale#fixers#format#Fix(bufnr(''))
+
+Execute(The elm-format command should manage use_global = 1 param):
+  call ale#test#SetFilename('../elm-test-files/src/subdir/testfile.elm')
+  let b:ale_elm_format_use_global = 1
+
+  AssertEqual
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command':
+  \     ale#Escape('elm-format')
+  \     . ' %t --yes',
+  \ },
+  \ ale#fixers#format#Fix(bufnr(''))
+
+Execute(The elm-format command should manage executable param):
+  call ale#test#SetFilename('../elm-test-files/src/subdir/testfile.elm')
+  let b:ale_elm_format_use_global = 1
+  let b:ale_elm_format_executable = 'elmformat'
+
+  AssertEqual
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command':
+  \     ale#Escape('elmformat')
+  \     . ' %t --yes',
+  \ },
+  \ ale#fixers#format#Fix(bufnr(''))
+
+Execute(The elm-format command should manage empty options):
+  call ale#test#SetFilename('../elm-test-files/src/subdir/testfile.elm')
+  let b:ale_elm_format_options = ''
+
+  AssertEqual
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command':
+  \     ale#Escape(simplify(g:dir . '/../elm-test-files/node_modules/.bin/elm-format'))
+  \     . ' %t',
+  \ },
+  \ ale#fixers#format#Fix(bufnr(''))
+
+Execute(The elm-format command should manage custom options):
+  call ale#test#SetFilename('../elm-test-files/src/subdir/testfile.elm')
+  let b:ale_elm_format_options = '--param1 --param2'
+
+  AssertEqual
+  \ {
+  \   'read_temporary_file': 1,
+  \   'command':
+  \     ale#Escape(simplify(g:dir . '/../elm-test-files/node_modules/.bin/elm-format'))
+  \     . ' %t --param1 --param2',
+  \ },
+  \ ale#fixers#format#Fix(bufnr(''))
+