Before:
  call ale#assert#SetUpLinterTest('haskell', 'stack_build')

After:
  call ale#assert#TearDownLinterTest()

Execute(The linter should not be executed when there's no stack.yaml file):
  AssertLinterNotExecuted

Execute(The linter should be executed when there is a stack.yaml file):
  call ale#test#SetFilename('../test-files/stack/test.hs')

  AssertLinter 'stack', 'stack build --fast'
