Before:
  call ale#assert#SetUpLinterTest('elixir', 'dialyxir')
  call ale#test#SetFilename('../test-files/elixir/mix_project/lib/app.ex')

After:
  call ale#assert#TearDownLinterTest()

Execute(Builds dialyxir command with a normal project):
  AssertLinterCwd ale#path#Simplify(g:dir . '/../test-files/elixir/mix_project')
  AssertLinter 'mix', 'mix help dialyzer && mix dialyzer'

Execute(Builds dialyxir command with an umbrella project):
  call ale#test#SetFilename('../test-files/elixir/umbrella_project/apps/mix_project/lib/app.ex')

  AssertLinterCwd ale#path#Simplify(g:dir . '/../test-files/elixir/umbrella_project')
  AssertLinter 'mix', 'mix help dialyzer && mix dialyzer'