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Before:
Save &filetype
Save g:ale_lint_on_filetype_changed
let g:ale_lint_on_filetype_changed = 1
let g:queue_calls = []
function! ale#Queue(...)
call add(g:queue_calls, a:000)
endfunction
After:
Restore
unlet! g:queue_calls
" Reload the ALE code to load the real function again.
runtime autoload/ale.vim
unlet! b:ale_original_filetype
Execute(The original filetype should be set on BufEnter):
let &filetype = 'foobar'
call ale#events#ReadOrEnterEvent(bufnr(''))
AssertEqual 'foobar', b:ale_original_filetype
let &filetype = 'bazboz'
call ale#events#ReadOrEnterEvent(bufnr(''))
AssertEqual 'bazboz', b:ale_original_filetype
Execute(Linting should not be queued when the filetype is the same):
let b:ale_original_filetype = 'foobar'
let g:queue_calls = []
call ale#events#FileTypeEvent(bufnr(''), 'foobar')
AssertEqual [], g:queue_calls
Execute(Linting should be queued when the filetype changes):
let b:ale_original_filetype = 'foobar'
let g:queue_calls = []
call ale#events#FileTypeEvent(bufnr(''), 'bazboz')
AssertEqual [[300, 'lint_file', bufnr('')]], g:queue_calls
" The original filetype should be updated, so we don't trigger linting
" by setting a filetype equal to what it already is.
AssertEqual 'bazboz', b:ale_original_filetype
Execute(Linting should be done when the original filetype was blank):
let b:ale_original_filetype = ''
call ale#events#FileTypeEvent(bufnr(''), 'bazboz')
AssertEqual [[300, 'lint_file', bufnr('')]], g:queue_calls
AssertEqual 'bazboz', b:ale_original_filetype
Execute(Linting should not be done when the setting is off):
let b:ale_original_filetype = 'foobar'
let g:ale_lint_on_filetype_changed = 0
call ale#events#FileTypeEvent(bufnr(''), 'bazboz')
AssertEqual [], g:queue_calls
" We should still update the old filetype
AssertEqual 'bazboz', b:ale_original_filetype
Execute(Linting should be done when the original filetype was not set):
unlet! b:ale_original_filetype
call ale#events#FileTypeEvent(bufnr(''), 'bazboz')
AssertEqual [], g:queue_calls
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