Before:
  call ale#assert#SetUpLinterTest('jsonnet', 'jsonnet_lint')
  call ale#test#SetFilename('../jsonnet_files/testfile.jsonnet')

After:
  Restore

  call ale#assert#TearDownLinterTest()

Execute(The default jsonnet-lint command should be correct):
  AssertLinter 'jsonnet-lint',
  \ ale#Escape('jsonnet-lint') . ' %t'

Execute(jsonnet-lint command and options should be customizable):
  let g:ale_jsonnet_jsonnet_lint_executable = 'jsonnet'
  let g:ale_jsonnet_jsonnet_lint_options = 'fmt'

  AssertLinter 'jsonnet',
  \ ale#Escape('jsonnet') . ' fmt %t'