Before:
call ale#assert#SetUpFixerTest('javascript', 'prettier_standard')
After:
call ale#assert#TearDownFixerTest()
Execute(The prettier callback should return the correct default values):
call ale#test#SetFilename('../test-files/prettier/testfile.js')
AssertFixer
\ {
\ 'command': ale#Escape(g:ale_javascript_prettier_standard_executable)
\ . ' --stdin'
\ . ' --stdin-filepath=%s ',
\ }