---@diagnostic disable: no-unknown local helpers = require('test.functional.helpers')(after_each) local eq = helpers.eq local exec_lua = helpers.exec_lua --- Convert completion results. --- ---@param line string line contents. Mark cursor position with `|` ---@param candidates lsp.CompletionList|lsp.CompletionItem[] ---@param lnum? integer 0-based, defaults to 0 ---@return {items: table[], server_start_boundary: integer?} local function complete(line, candidates, lnum) lnum = lnum or 0 -- nvim_win_get_cursor returns 0 based column, line:find returns 1 based local cursor_col = line:find("|") - 1 line = line:gsub("|", "") return exec_lua([[ local line, cursor_col, lnum, result = ... local line_to_cursor = line:sub(1, cursor_col) local client_start_boundary = vim.fn.match(line_to_cursor, '\\k*$') local items, server_start_boundary = require("vim.lsp._completion")._convert_results( line, lnum, cursor_col, client_start_boundary, nil, result, "utf-16" ) return { items = items, server_start_boundary = server_start_boundary } ]], line, cursor_col, lnum, candidates) end describe("vim.lsp._completion", function() before_each(helpers.clear) -- https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_completion it('prefers textEdit over label as word', function() local range0 = { start = { line = 0, character = 0 }, ["end"] = { line = 0, character = 0 }, } local completion_list = { -- resolves into label { label = 'foobar', sortText = 'a', documentation = 'documentation' }, { label = 'foobar', sortText = 'b', documentation = { value = 'documentation' }, }, -- resolves into insertText { label = 'foocar', sortText = 'c', insertText = 'foobar' }, { label = 'foocar', sortText = 'd', insertText = 'foobar' }, -- resolves into textEdit.newText { label = 'foocar', sortText = 'e', insertText = 'foodar', textEdit = { newText = 'foobar', range = range0 } }, { label = 'foocar', sortText = 'f', textEdit = { newText = 'foobar', range = range0 } }, -- real-world snippet text { label = 'foocar', sortText = 'g', insertText = 'foodar', insertTextFormat = 2, textEdit = { newText = 'foobar(${1:place holder}, ${2:more ...holder{\\}})', range = range0 }, }, { label = 'foocar', sortText = 'h', insertText = 'foodar(${1:var1} typ1, ${2:var2} *typ2) {$0\\}', insertTextFormat = 2, }, -- nested snippet tokens { label = 'foocar', sortText = 'i', insertText = 'foodar(${1:${2|typ1,typ2|}}) {$0\\}', insertTextFormat = 2, }, -- braced tabstop { label = 'foocar', sortText = 'j', insertText = 'foodar()${0}', insertTextFormat = 2}, -- plain text { label = 'foocar', sortText = 'k', insertText = 'foodar(${1:var1})', insertTextFormat = 1, }, } local expected = { { abbr = 'foobar', word = 'foobar', }, { abbr = 'foobar', word = 'foobar', }, { abbr = 'foocar', word = 'foobar', }, { abbr = 'foocar', word = 'foobar', }, { abbr = 'foocar', word = 'foobar', }, { abbr = 'foocar', word = 'foobar', }, { abbr = 'foocar', word = 'foobar(place holder, more ...holder{})', }, { abbr = 'foocar', word = 'foodar(var1 typ1, var2 *typ2) {}', }, { abbr = 'foocar', word = 'foodar(typ1) {}', }, { abbr = 'foocar', word = 'foodar()', }, { abbr = 'foocar', word = 'foodar(${1:var1})', }, } local result = complete('|', completion_list) result = vim.tbl_map(function(x) return { abbr = x.abbr, word = x.word } end, result.items) eq(expected, result) end) it("uses correct start boundary", function() local completion_list = { isIncomplete = false, items = { { filterText = "this_thread", insertText = "this_thread", insertTextFormat = 1, kind = 9, label = " this_thread", score = 1.3205767869949, sortText = "4056f757this_thread", textEdit = { newText = "this_thread", range = { start = { line = 0, character = 7 }, ["end"] = { line = 0, character = 11 }, }, } }, } } local expected = { abbr = ' this_thread', dup = 1, empty = 1, icase = 1, kind = 'Module', menu = '', word = 'this_thread', } local result = complete(" std::this|", completion_list) eq(7, result.server_start_boundary) local item = result.items[1] item.user_data = nil eq(expected, item) end) it("should search from start boundary to cursor position", function() local completion_list = { isIncomplete = false, items = { { filterText = "this_thread", insertText = "this_thread", insertTextFormat = 1, kind = 9, label = " this_thread", score = 1.3205767869949, sortText = "4056f757this_thread", textEdit = { newText = "this_thread", range = { start = { line = 0, character = 7 }, ["end"] = { line = 0, character = 11 }, }, } }, { filterText = "notthis_thread", insertText = "notthis_thread", insertTextFormat = 1, kind = 9, label = " notthis_thread", score = 1.3205767869949, sortText = "4056f757this_thread", textEdit = { newText = "notthis_thread", range = { start = { line = 0, character = 7 }, ["end"] = { line = 0, character = 11 }, }, } }, } } local expected = { abbr = ' this_thread', dup = 1, empty = 1, icase = 1, kind = 'Module', menu = '', word = 'this_thread', } local result = complete(" std::this|is", completion_list) eq(1, #result.items) local item = result.items[1] item.user_data = nil eq(expected, item) end) end)