Before:
Save g:ale_filetype_blacklist
" Delete some variable which should be defined.
unlet! g:ale_filetype_blacklist
After:
Restore
call ale#ResetErrorDelays()
Execute(ALE should stop queuing for a while after exceptions are thrown):
AssertThrows call ale#Queue(100)
call ale#Queue(100)
Execute(ALE should stop linting for a while after exceptions are thrown):
AssertThrows call ale#Lint()
call ale#Lint()
Execute(ALE should stop echoing messages for a while after exceptions are thrown):
AssertThrows call ale#cursor#EchoCursorWarning()
call ale#cursor#EchoCursorWarning()