ale/test/command_callback/test_mypy_command_callback.vader
Harry Percival 72d2c55479 Mypy: try to find folder containing mypy.ini to use as cwd. (#2385)
* When deciding which directory to run mypy from, prefer a folder with mypy.ini in it
* Add a test for mypy.ini-finding behaviour
2020-01-02 14:35:21 +00:00

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Before:
call ale#assert#SetUpLinterTest('python', 'mypy')
call ale#test#SetFilename('test.py')
let b:bin_dir = has('win32') ? 'Scripts' : 'bin'
After:
unlet! b:bin_dir
unlet! b:executable
call ale#assert#TearDownLinterTest()
Execute(The mypy callbacks should return the correct default values):
AssertLinter 'mypy',
\ ale#path#CdString(g:dir) . ale#Escape('mypy')
\ . ' --show-column-numbers '
\ . '--shadow-file %s %t %s'
Execute(The mypy executable should be configurable, and escaped properly):
let g:ale_python_mypy_executable = 'executable with spaces'
AssertLinter 'executable with spaces',
\ ale#path#CdString(g:dir) . ale#Escape('executable with spaces')
\ . ' --show-column-numbers '
\ . '--shadow-file %s %t %s'
Execute(The mypy command callback should let you set options):
let g:ale_python_mypy_options = '--some-option'
AssertLinter 'mypy',
\ ale#path#CdString(g:dir) . ale#Escape('mypy')
\ . ' --show-column-numbers --some-option '
\ . '--shadow-file %s %t %s'
Execute(The mypy command should switch directories to the detected project root):
silent execute 'file ' . fnameescape(g:dir . '/python_paths/no_virtualenv/subdir/foo/bar.py')
AssertLinter 'mypy',
\ ale#path#CdString(ale#path#Simplify(g:dir . '/python_paths/no_virtualenv/subdir'))
\ . ale#Escape('mypy')
\ . ' --show-column-numbers '
\ . '--shadow-file %s %t %s'
Execute(The mypy callbacks should detect virtualenv directories and switch to the project root):
silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.py')
let b:executable = ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/env/' . b:bin_dir . '/mypy')
AssertLinter b:executable,
\ ale#path#CdString(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/subdir'))
\ . ale#Escape(b:executable)
\ . ' --show-column-numbers '
\ . '--shadow-file %s %t %s'
Execute(The mypy callbacks should cd to directory containing mypy.ini if found):
silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_mypy_ini_and_pytest_ini/tests/testsubfolder/my_tests.py')
AssertLinter 'mypy',
\ ale#path#CdString(ale#path#Simplify(g:dir . '/python_paths/with_mypy_ini_and_pytest_ini'))
\ . ale#Escape('mypy')
\ . ' --show-column-numbers '
\ . '--shadow-file %s %t %s'
Execute(You should able able to use the global mypy instead):
silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.py')
let g:ale_python_mypy_use_global = 1
AssertLinter 'mypy',
\ ale#path#CdString(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/subdir'))
\ . ale#Escape('mypy')
\ . ' --show-column-numbers '
\ . '--shadow-file %s %t %s'
Execute(Setting executable to 'pipenv' appends 'run mypy'):
let g:ale_python_mypy_executable = 'path/to/pipenv'
AssertLinter 'path/to/pipenv',
\ ale#path#BufferCdString(bufnr(''))
\ . ale#Escape('path/to/pipenv') . ' run mypy'
\ . ' --show-column-numbers --shadow-file %s %t %s'
Execute(Pipenv is detected when python_mypy_auto_pipenv is set):
let g:ale_python_mypy_auto_pipenv = 1
call ale#test#SetFilename('/testplugin/test/python_fixtures/pipenv/whatever.py')
AssertLinter 'pipenv',
\ ale#path#BufferCdString(bufnr(''))
\ . ale#Escape('pipenv') . ' run mypy --show-column-numbers --shadow-file %s %t %s'