Before:
  call ale#assert#SetUpLinterTest('cloudformation', 'checkov')

After:
  call ale#assert#TearDownLinterTest()

Execute(The default command should be direct):
  AssertLinter 'checkov',
  \ ale#Escape('checkov') . ' -f %t -o json --quiet --framework cloudformation '

Execute(It should be possible to override the default command):
  let b:ale_cloudformation_checkov_executable = '/bin/other/checkov'
  AssertLinter '/bin/other/checkov',
  \ ale#Escape('/bin/other/checkov') . ' -f %t -o json --quiet --framework cloudformation '