Improve support for python package manage: pipenv, poetry and uv (#4825)

test/fixers/test_autoimport_fixer_callback.vader

@@ -18,11 +18,8 @@ After:
   call ale#test#RestoreDirectory()
 
 Execute(The autoimport callback should return the correct default values):
-  AssertEqual
-  \ 0,
-  \ ale#fixers#autoimport#Fix(bufnr(''))
-
   silent execute 'file ' . fnameescape(g:dir . '/../test-files/python/with_virtualenv/subdir/foo/bar.py')
+
   AssertEqual
   \ {
   \   'cwd': '%s:h',
@@ -33,11 +30,8 @@ Execute(The autoimport callback should return the correct default values):
 Execute(The autoimport callback should respect custom options):
   let g:ale_python_autoimport_options = '--multi-line=3 --trailing-comma'
 
-  AssertEqual
-  \ 0,
-  \ ale#fixers#autoimport#Fix(bufnr(''))
-
   silent execute 'file ' . fnameescape(g:dir . '/../test-files/python/with_virtualenv/subdir/foo/bar.py')
+
   AssertEqual
   \ {
   \   'cwd': '%s:h',
@@ -45,3 +39,39 @@ Execute(The autoimport callback should respect custom options):
   \     . ' --multi-line=3 --trailing-comma -',
   \ },
   \ ale#fixers#autoimport#Fix(bufnr(''))
+
+Execute(pipenv is detected when python_autoimport_auto_pipenv is set):
+  let g:ale_python_autoimport_auto_pipenv = 1
+
+  call ale#test#SetFilename('../test-files/python/pipenv/whatever.py')
+
+  AssertEqual
+  \ {
+  \   'cwd': '%s:h',
+  \   'command': ale#Escape('pipenv') . ' run autoimport -',
+  \ },
+  \ ale#fixers#autoimport#Fix(bufnr(''))
+
+Execute(Poetry is detected when python_autoimport_auto_poetry is set):
+  let g:ale_python_autoimport_auto_poetry = 1
+
+  call ale#test#SetFilename('../test-files/python/poetry/whatever.py')
+
+  AssertEqual
+  \ {
+  \   'cwd': '%s:h',
+  \   'command': ale#Escape('poetry') . ' run autoimport -',
+  \ },
+  \ ale#fixers#autoimport#Fix(bufnr(''))
+
+Execute(uv is detected when python_autoimport_auto_uv is set):
+  let g:ale_python_autoimport_auto_uv = 1
+
+  call ale#test#SetFilename('../test-files/python/uv/whatever.py')
+
+  AssertEqual
+  \ {
+  \   'cwd': '%s:h',
+  \   'command': ale#Escape('uv') . ' run autoimport -',
+  \ },
+  \ ale#fixers#autoimport#Fix(bufnr(''))