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ale/test/command_callback/test_pylint_command_callback.vader
Kevin Locke 3300b1aca7 python/pylint: Change directory to project root
Pylint only [checks for pylintrc] (and .pylintrc) files in the packages
aboves its current directory before falling back to user and global
pylintrc.  For projects with a src dir, running pylint from the
directory containing the file will not use the project pylintrc.

Adopt the convention used by many other Python linters of running from
the project root, which solves this issue.  Add pylintrc and .pylintrc
to FindProjectRoot.  Update docs.

[checks for pylintrc]: https://github.com/PyCQA/pylint/blob/pylint-2.2.2/pylint/config.py#L106

Signed-off-by: Kevin Locke <kevin@kevinlocke.name>
2019-02-17 10:40:50 -07:00

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Before:
call ale#assert#SetUpLinterTest('python', 'pylint')
let b:bin_dir = has('win32') ? 'Scripts' : 'bin'
let b:command_tail = ' --output-format text --msg-template="{path}:{line}:{column}: {msg_id} ({symbol}) {msg}" --reports n %s'
After:
unlet! b:bin_dir
unlet! b:executable
unlet! b:command_tail
call ale#assert#TearDownLinterTest()
Execute(The pylint callbacks should return the correct default values):
AssertLinter 'pylint',
\ ale#path#BufferCdString(bufnr(''))
\ . ale#Escape('pylint') . ' ' . b:command_tail
Execute(The option for disabling changing directories should work):
let g:ale_python_pylint_change_directory = 0
AssertLinter 'pylint', ale#Escape('pylint') . ' ' . b:command_tail
Execute(The pylint executable should be configurable, and escaped properly):
let g:ale_python_pylint_executable = 'executable with spaces'
AssertLinter 'executable with spaces',
\ ale#path#BufferCdString(bufnr(''))
\ . ale#Escape('executable with spaces') . ' ' . b:command_tail
Execute(The pylint command callback should let you set options):
let g:ale_python_pylint_options = '--some-option'
AssertLinter 'pylint',
\ ale#path#BufferCdString(bufnr(''))
\ . ale#Escape('pylint') . ' --some-option' . b:command_tail
Execute(The pylint callbacks shouldn't detect virtualenv directories where they don't exist):
silent execute 'file ' . fnameescape(g:dir . '/python_paths/no_virtualenv/subdir/foo/bar.py')
AssertLinter 'pylint',
\ ale#path#CdString(ale#path#Simplify(g:dir . '/python_paths/no_virtualenv/subdir'))
\ . ale#Escape('pylint') . ' ' . b:command_tail
Execute(The pylint callbacks should detect virtualenv directories):
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 . '/pylint'
\)
AssertLinter b:executable,
\ ale#path#CdString(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/subdir'))
\ . ale#Escape(b:executable) . ' ' . b:command_tail
Execute(You should able able to use the global pylint instead):
silent execute 'file ' . fnameescape(g:dir . '/python_paths/with_virtualenv/subdir/foo/bar.py')
let g:ale_python_pylint_use_global = 1
AssertLinter 'pylint',
\ ale#path#CdString(ale#path#Simplify(g:dir . '/python_paths/with_virtualenv/subdir'))
\ . ale#Escape('pylint') . ' ' . b:command_tail
Execute(Setting executable to 'pipenv' appends 'run pylint'):
let g:ale_python_pylint_executable = 'path/to/pipenv'
AssertLinter 'path/to/pipenv',
\ ale#path#BufferCdString(bufnr(''))
\ . ale#Escape('path/to/pipenv') . ' run pylint'
\ . ' --output-format text --msg-template="{path}:{line}:{column}: {msg_id} ({symbol}) {msg}" --reports n %s'
Execute(Pipenv is detected when python_pylint_auto_pipenv is set):
let g:ale_python_pylint_auto_pipenv = 1
call ale#test#SetFilename('/testplugin/test/python_fixtures/pipenv/whatever.py')
AssertLinter 'pipenv',
\ ale#path#BufferCdString(bufnr(''))
\ . ale#Escape('pipenv') . ' run pylint'
\ . ' --output-format text --msg-template="{path}:{line}:{column}: {msg_id} ({symbol}) {msg}" --reports n %s'