ale/test/test_statusline.vader

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Before:
let g:ale_statusline_format = ['%sE', '%sW', 'OKIE']
After:
let g:ale_buffer_info = {}
Execute (Count should be 0 when data is empty):
let g:ale_buffer_info = {}
AssertEqual [0, 0], ale#statusline#Count(bufnr('%'))
Execute (Count should read data from the cache):
let g:ale_buffer_info = {'44': {'count': [1, 2]}}
AssertEqual [1, 2], ale#statusline#Count(44)
Execute (The count should be correct after an update):
let g:ale_buffer_info = {'44': {}}
call ale#statusline#Update(44, [])
AssertEqual [0, 0], ale#statusline#Count(44)
Execute (Count should be match the loclist):
let g:ale_buffer_info = {
\ bufnr('%'): {
\ 'loclist': [
\ {
\ 'lnum': 1,
\ 'bufnr': 1,
\ 'vcol': 0,
\ 'linter_name': 'testlinter',
\ 'nr': -1,
\ 'type': 'E',
\ 'col': 1,
\ 'text': 'Test Error',
\ },
\ ],
\ },
\}
AssertEqual [1, 0], ale#statusline#Count(bufnr('%'))
Execute (Output should be empty for non-existant buffer):
AssertEqual [0, 0], ale#statusline#Count(9001)
Execute (Statusline is formatted to the users preference for just errors):
let g:ale_buffer_info = {bufnr('%'): {}}
call ale#statusline#Update(bufnr('%'), [{'type': 'E'}, {'type': 'E'}])
AssertEqual '2E', ale#statusline#Status()
Execute (Statusline is formatted to the users preference for just warnings):
let g:ale_buffer_info = {bufnr('%'): {}}
call ale#statusline#Update(bufnr('%'), [{'type': 'W'}, {'type': 'W'}, {'type': 'W'}])
AssertEqual '3W', ale#statusline#Status()
Execute (Statusline is formatted to the users preference for errors and warnings):
let g:ale_buffer_info = {bufnr('%'): {}}
call ale#statusline#Update(bufnr('%'), [{'type': 'E'}, {'type': 'W'}, {'type': 'W'}])
AssertEqual '1E 2W', ale#statusline#Status()
Execute (Statusline is formatted to the users preference for no errors or warnings):
let g:ale_buffer_info = {bufnr('%'): {}}
call ale#statusline#Update(bufnr('%'), [])
AssertEqual 'OKIE', ale#statusline#Status()