Add test for LSP autoimport

autoload/ale/completion.vim

@@ -533,6 +533,7 @@ function! ale#completion#ParseLSPCompletions(response) abort
 
         if has_key(l:item, 'additionalTextEdits')
             let l:text_changes = []
+
             for l:edit in l:item.additionalTextEdits
                 let l:range = l:edit.range
                 call add(l:text_changes, {
@@ -549,7 +550,7 @@ function! ale#completion#ParseLSPCompletions(response) abort
             endfor
 
             let l:changes = [{
-            \ 'fileName': expand('%:p'),
+            \ 'fileName': expand('#' . l:buffer . ':p'),
             \ 'textChanges': l:text_changes,
             \}]
             \

autoload/ale/rename.vim

@@ -90,8 +90,9 @@ function! s:getChanges(workspace_edit) abort
         return a:workspace_edit.changes
     elseif has_key(a:workspace_edit, 'documentChanges')
         let l:document_changes = []
-        if type(a:workspace_edit.documentChanges) is v:t_dict &&
+
-        \ has_key(a:workspace_edit.documentChanges, 'edits')
+        if type(a:workspace_edit.documentChanges) is v:t_dict
+        \ && has_key(a:workspace_edit.documentChanges, 'edits')
             call add(l:document_changes, a:workspace_edit.documentChanges)
         elseif type(a:workspace_edit.documentChanges) is v:t_list
             let l:document_changes = a:workspace_edit.documentChanges

test/completion/test_lsp_completion_parsing.vader

@@ -526,3 +526,73 @@ Execute(Should handle completion messages with the deprecated insertText attribu
   \     ],
   \   },
   \ })
+
+Execute(Should handle completion messages with additionalTextEdits):
+  AssertEqual
+  \ [
+  \   {
+  \     'word': 'next_callback',
+  \     'menu': 'PlayTimeCallback',
+  \     'info': '',
+  \     'kind': 'v',
+  \     'icase': 1,
+  \     'user_data': json_encode({
+  \       'codeActions': [
+  \         {
+  \           'description': 'completion',
+  \           'changes': [
+  \             {
+  \               'fileName': expand('#' . bufnr('') . ':p'),
+  \               'textChanges': [
+  \                 {
+  \                   'start': {
+  \                     'line': 11,
+  \                     'offset': 2,
+  \                   },
+  \                   'end': {
+  \                     'line': 13,
+  \                     'offset': 4,
+  \                   },
+  \                   'newText': 'from "module" import next_callback',
+  \                 },
+  \               ],
+  \             },
+  \           ],
+  \         },
+  \       ],
+  \     }),
+  \   },
+  \ ],
+  \ ale#completion#ParseLSPCompletions({
+  \   'id': 226,
+  \   'jsonrpc': '2.0',
+  \   'result': {
+  \     'isIncomplete': v:false,
+  \     'items': [
+  \       {
+  \         'detail': 'PlayTimeCallback',
+  \         'filterText': 'next_callback',
+  \         'insertText': 'next_callback',
+  \         'insertTextFormat': 1,
+  \         'kind': 6,
+  \         'label': ' next_callback',
+  \         'sortText': '3ee19999next_callback',
+  \         'additionalTextEdits': [
+  \           {
+  \             'range': {
+  \               'start': {
+  \                 'line': 10,
+  \                 'character': 1,
+  \               },
+  \               'end': {
+  \                 'line': 12,
+  \                 'character': 3,
+  \               },
+  \             },
+  \             'newText': 'from "module" import next_callback',
+  \           },
+  \         ],
+  \       },
+  \     ],
+  \   },
+  \ })