Before: call ale#test#SetDirectory('/testplugin/test') call ale#test#SetFilename('dummy.txt') let g:old_filename = expand('%:p') let g:Callback = '' let g:expr_list = [] let g:message_list = [] let g:preview_called = 0 let g:item_list = [] let g:capability_checked = '' let g:WaitCallback = v:null runtime autoload/ale/linter.vim runtime autoload/ale/lsp.vim runtime autoload/ale/util.vim runtime autoload/ale/preview.vim function! ale#lsp_linter#StartLSP(buffer, linter) abort let l:conn = ale#lsp#NewConnection({}) let l:conn.id = 347 let l:conn.open_documents = {a:buffer : -1} return { \ 'buffer': a:buffer, \ 'connection_id': 347, \ 'project_root': '/foo/bar', \ 'language_id': 'python', \} endfunction function! ale#lsp#WaitForCapability(conn_id, project_root, capability, callback) abort let g:capability_checked = a:capability let g:WaitCallback = a:callback endfunction function! ale#lsp#RegisterCallback(conn_id, callback) abort let g:Callback = a:callback endfunction function! ale#lsp#Send(conn_id, message, root) abort call add(g:message_list, a:message) return 42 endfunction function! ale#util#Execute(expr) abort call add(g:expr_list, a:expr) endfunction function! ale#preview#ShowSelection(item_list) abort let g:preview_called = 1 let g:item_list = a:item_list endfunction After: call ale#lsp#RemoveConnectionWithID(347) call ale#references#SetMap({}) call ale#test#RestoreDirectory() call ale#linter#Reset() unlet! g:capability_checked unlet! g:WaitCallback unlet! g:old_filename unlet! g:Callback unlet! g:message_list unlet! g:expr_list unlet! b:ale_linters unlet! g:item_list unlet! g:preview_called runtime autoload/ale/lsp_linter.vim runtime autoload/ale/lsp.vim runtime autoload/ale/util.vim runtime autoload/ale/preview.vim Execute(Other messages for the tsserver handler should be ignored): call ale#references#HandleTSServerResponse(1, {'command': 'foo'}) Execute(Failed reference responses should be handled correctly): call ale#references#SetMap({3: {}}) call ale#references#HandleTSServerResponse( \ 1, \ {'command': 'references', 'request_seq': 3} \) AssertEqual {}, ale#references#GetMap() Given typescript(Some typescript file): foo somelongerline bazxyzxyzxyz Execute(Results should be shown for tsserver responses): call ale#references#SetMap({3: {}}) call ale#references#HandleTSServerResponse(1, { \ 'command': 'references', \ 'request_seq': 3, \ 'success': v:true, \ 'body': { \ 'symbolStartOffset': 9, \ 'refs': [ \ { \ 'file': '/foo/bar/app.ts', \ 'isWriteAccess': v:true, \ 'lineText': 'import {doSomething} from ''./whatever''', \ 'end': {'offset': 24, 'line': 9}, \ 'start': {'offset': 9, 'line': 9}, \ 'isDefinition': v:true, \ }, \ { \ 'file': '/foo/bar/app.ts', \ 'isWriteAccess': v:false, \ 'lineText': ' doSomething()', \ 'end': {'offset': 18, 'line': 804}, \ 'start': {'offset': 3, 'line': 804}, \ 'isDefinition': v:false, \ }, \ { \ 'file': '/foo/bar/other/app.ts', \ 'isWriteAccess': v:false, \ 'lineText': ' doSomething()', \ 'end': {'offset': 18, 'line': 51}, \ 'start': {'offset': 3, 'line': 51}, \ 'isDefinition': v:false, \ }, \ ], \ 'symbolDisplayString': 'import doSomething', \ 'symbolName': 'doSomething()', \ }, \}) AssertEqual \ [ \ {'filename': '/foo/bar/app.ts', 'column': 9, 'line': 9}, \ {'filename': '/foo/bar/app.ts', 'column': 3, 'line': 804}, \ {'filename': '/foo/bar/other/app.ts', 'column': 3, 'line': 51}, \ ], \ g:item_list AssertEqual {}, ale#references#GetMap() Execute(The preview window should not be opened for empty tsserver responses): call ale#references#SetMap({3: {}}) call ale#references#HandleTSServerResponse(1, { \ 'command': 'references', \ 'request_seq': 3, \ 'success': v:true, \ 'body': { \ 'symbolStartOffset': 9, \ 'refs': [ \ ], \ 'symbolDisplayString': 'import doSomething', \ 'symbolName': 'doSomething()', \ }, \}) Assert !g:preview_called AssertEqual {}, ale#references#GetMap() AssertEqual ['echom ''No references found.'''], g:expr_list Execute(tsserver reference requests should be sent): runtime ale_linters/typescript/tsserver.vim call setpos('.', [bufnr(''), 2, 5, 0]) ALEFindReferences " We shouldn't register the callback yet. AssertEqual '''''', string(g:Callback) AssertEqual type(function('type')), type(g:WaitCallback) AssertEqual 'references', g:capability_checked call call(g:WaitCallback, [347, '/foo/bar']) AssertEqual \ 'function(''ale#references#HandleTSServerResponse'')', \ string(g:Callback) AssertEqual \ [[0, 'ts@references', {'file': expand('%:p'), 'line': 2, 'offset': 5}]], \ g:message_list AssertEqual {'42': {}}, ale#references#GetMap() Given python(Some Python file): foo somelongerline bazxyzxyzxyz Execute(LSP reference responses should be handled): call ale#references#SetMap({3: {}}) call ale#references#HandleLSPResponse( \ 1, \ { \ 'id': 3, \ 'result': [ \ { \ 'uri': ale#path#ToURI(ale#path#Simplify(g:dir . '/completion_dummy_file')), \ 'range': { \ 'start': {'line': 2, 'character': 7}, \ }, \ }, \ { \ 'uri': ale#path#ToURI(ale#path#Simplify(g:dir . '/other_file')), \ 'range': { \ 'start': {'line': 7, 'character': 15}, \ }, \ }, \ ], \ } \) AssertEqual \ [ \ { \ 'filename': ale#path#Simplify(g:dir . '/completion_dummy_file'), \ 'line': 3, \ 'column': 8, \ }, \ { \ 'filename': ale#path#Simplify(g:dir . '/other_file'), \ 'line': 8, \ 'column': 16, \ }, \ ], \ g:item_list AssertEqual {}, ale#references#GetMap() Execute(Preview windows should not be opened for empty LSP reference responses): call ale#references#SetMap({3: {}}) call ale#references#HandleLSPResponse( \ 1, \ { \ 'id': 3, \ 'result': [ \ ], \ } \) Assert !g:preview_called AssertEqual {}, ale#references#GetMap() AssertEqual ['echom ''No references found.'''], g:expr_list Execute(LSP reference requests should be sent): runtime ale_linters/python/pyls.vim let b:ale_linters = ['pyls'] call setpos('.', [bufnr(''), 1, 5, 0]) ALEFindReferences " We shouldn't register the callback yet. AssertEqual '''''', string(g:Callback) AssertEqual type(function('type')), type(g:WaitCallback) AssertEqual 'references', g:capability_checked call call(g:WaitCallback, [347, '/foo/bar']) AssertEqual \ 'function(''ale#references#HandleLSPResponse'')', \ string(g:Callback) AssertEqual \ [ \ [1, 'textDocument/didChange', { \ 'textDocument': { \ 'uri': ale#path#ToURI(expand('%:p')), \ 'version': g:ale_lsp_next_version_id - 1, \ }, \ 'contentChanges': [{'text': join(getline(1, '$'), "\n") . "\n"}] \ }], \ [0, 'textDocument/references', { \ 'textDocument': {'uri': ale#path#ToURI(expand('%:p'))}, \ 'position': {'line': 0, 'character': 3}, \ 'context': {'includeDeclaration': v:false}, \ }], \ ], \ g:message_list AssertEqual {'42': {}}, ale#references#GetMap()