Before: Save g:ale_python_auto_pipenv let g:ale_python_auto_pipenv = 0 call ale#assert#SetUpLinterTest('python', 'ruff') let b:bin_dir = has('win32') ? 'Scripts' : 'bin' let b:command_tail = ' --format text -' GivenCommandOutput ['ruff 0.0.83'] After: unlet! b:bin_dir unlet! b:executable unlet! b:command_tail call ale#assert#TearDownLinterTest() Execute(The ruff callbacks should return the correct default values): AssertLinterCwd expand('%:p:h') AssertLinter 'ruff', ale#Escape('ruff') . b:command_tail Execute(ruff should run with the file path of buffer in old versions): " version `0.0.69` supports liniting input from stdin GivenCommandOutput ['ruff 0.0.68'] AssertLinterCwd expand('%:p:h') AssertLinter 'ruff', ale#Escape('ruff') . b:command_tail[:-3] . ' %s' Execute(ruff should run with the stdin in new enough versions): GivenCommandOutput ['ruff 0.0.83'] AssertLinterCwd expand('%:p:h') AssertLinter 'ruff', ale#Escape('ruff') . b:command_tail[:-3] . ' -' " AssertLinter 'ruff', ale#Escape('ruff') . b:command_tail[:-3] . '--format text -' Execute(The option for disabling changing directories should work): let g:ale_python_ruff_change_directory = 0 AssertLinterCwd '' AssertLinter 'ruff', ale#Escape('ruff') . b:command_tail Execute(The ruff executable should be configurable, and escaped properly): let g:ale_python_ruff_executable = 'executable with spaces' AssertLinter 'executable with spaces', ale#Escape('executable with spaces') . b:command_tail Execute(The ruff command callback should let you set options): let g:ale_python_ruff_options = '--some-flag' AssertLinter 'ruff', ale#Escape('ruff') . ' --some-flag' . b:command_tail let g:ale_python_ruff_options = '--some-option value' AssertLinter 'ruff', ale#Escape('ruff') . ' --some-option value' . b:command_tail Execute(The ruff callbacks shouldn't detect virtualenv directories where they don't exist): call ale#test#SetFilename('../test-files/python/no_virtualenv/subdir/foo/bar.py') AssertLinterCwd ale#path#Simplify(g:dir . '/../test-files/python/no_virtualenv/subdir') AssertLinter 'ruff', ale#Escape('ruff') . b:command_tail Execute(The ruff callbacks should detect virtualenv directories): call ale#test#SetFilename('../test-files/python/with_virtualenv/subdir/foo/bar.py') let b:executable = ale#path#Simplify( \ g:dir . '/../test-files/python/with_virtualenv/env/' . b:bin_dir . '/ruff' \) AssertLinterCwd ale#path#Simplify(g:dir . '/../test-files/python/with_virtualenv/subdir') AssertLinter b:executable, ale#Escape(b:executable) . b:command_tail Execute(You should able able to use the global ruff instead): call ale#test#SetFilename('../test-files/python/with_virtualenv/subdir/foo/bar.py') let g:ale_python_ruff_use_global = 1 AssertLinterCwd ale#path#Simplify(g:dir . '/../test-files/python/with_virtualenv/subdir') AssertLinter 'ruff', ale#Escape('ruff') . b:command_tail Execute(Setting executable to 'pipenv' appends 'run ruff'): let g:ale_python_ruff_executable = 'path/to/pipenv' let g:ale_python_ruff_use_global = 1 AssertLinter 'path/to/pipenv', ale#Escape('path/to/pipenv') . ' run ruff' \ . ' --format text -' Execute(Pipenv is detected when python_ruff_auto_pipenv is set): let g:ale_python_ruff_auto_pipenv = 1 call ale#test#SetFilename('../test-files/python/pipenv/whatever.py') AssertLinterCwd expand('%:p:h') AssertLinter 'pipenv', ale#Escape('pipenv') . ' run ruff' \ . ' --format text -' Execute(Setting executable to 'poetry' appends 'run ruff'): let g:ale_python_ruff_executable = 'path/to/poetry' let g:ale_python_ruff_use_global = 1 AssertLinter 'path/to/poetry', ale#Escape('path/to/poetry') . ' run ruff' \ . ' --format text -' Execute(poetry is detected when python_ruff_auto_poetry is set): let g:ale_python_ruff_auto_poetry = 1 call ale#test#SetFilename('../test-files/python/poetry/whatever.py') AssertLinterCwd expand('%:p:h') AssertLinter 'poetry', ale#Escape('poetry') . ' run ruff' \ . ' --format text -'