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refactor(test): create an lsp-specific helpers.lua file
* move the code for creating fake rpc servers there
This commit is contained in:
John Drouhard
178
test/functional/plugin/lsp/helpers.lua
Normal file
178
test/functional/plugin/lsp/helpers.lua
Normal file
@@ -0,0 +1,178 @@
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local helpers = require('test.functional.helpers')(after_each)
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local clear = helpers.clear
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local exec_lua = helpers.exec_lua
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local run = helpers.run
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local stop = helpers.stop
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local NIL = helpers.NIL
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local M = {}
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function M.clear_notrace()
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-- problem: here be dragons
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-- solution: don't look too closely for dragons
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clear {env={
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NVIM_LUA_NOTRACK="1";
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VIMRUNTIME=os.getenv"VIMRUNTIME";
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}}
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end
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M.create_server_definition = [[
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function _create_server(opts)
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opts = opts or {}
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local server = {}
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server.messages = {}
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function server.cmd(dispatchers)
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local closing = false
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local handlers = opts.handlers or {}
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local srv = {}
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function srv.request(method, params, callback)
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table.insert(server.messages, {
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method = method,
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params = params,
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})
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local handler = handlers[method]
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if handler then
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local response, err = handler(method, params)
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if response then
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callback(err, response)
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end
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elseif method == 'initialize' then
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callback(nil, {
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capabilities = opts.capabilities or {}
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})
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elseif method == 'shutdown' then
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callback(nil, nil)
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end
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local request_id = #server.messages
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return true, request_id
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end
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function srv.notify(method, params)
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table.insert(server.messages, {
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method = method,
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params = params
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})
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if method == 'exit' then
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dispatchers.on_exit(0, 15)
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end
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end
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function srv.is_closing()
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return closing
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end
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function srv.terminate()
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closing = true
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end
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return srv
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end
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return server
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end
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]]
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-- Fake LSP server.
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M.fake_lsp_code = 'test/functional/fixtures/fake-lsp-server.lua'
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M.fake_lsp_logfile = 'Xtest-fake-lsp.log'
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local function fake_lsp_server_setup(test_name, timeout_ms, options, settings)
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exec_lua([=[
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lsp = require('vim.lsp')
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local test_name, fixture_filename, logfile, timeout, options, settings = ...
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TEST_RPC_CLIENT_ID = lsp.start_client {
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cmd_env = {
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NVIM_LOG_FILE = logfile;
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NVIM_LUA_NOTRACK = "1";
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};
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cmd = {
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vim.v.progpath, '-Es', '-u', 'NONE', '--headless',
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"-c", string.format("lua TEST_NAME = %q", test_name),
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"-c", string.format("lua TIMEOUT = %d", timeout),
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"-c", "luafile "..fixture_filename,
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};
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handlers = setmetatable({}, {
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__index = function(t, method)
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return function(...)
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return vim.rpcrequest(1, 'handler', ...)
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end
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end;
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});
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workspace_folders = {{
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uri = 'file://' .. vim.loop.cwd(),
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name = 'test_folder',
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}};
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on_init = function(client, result)
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TEST_RPC_CLIENT = client
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vim.rpcrequest(1, "init", result)
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end;
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flags = {
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allow_incremental_sync = options.allow_incremental_sync or false;
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debounce_text_changes = options.debounce_text_changes or 0;
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};
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settings = settings;
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on_exit = function(...)
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vim.rpcnotify(1, "exit", ...)
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end;
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}
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]=], test_name, M.fake_lsp_code, M.fake_lsp_logfile, timeout_ms or 1e3, options or {}, settings or {})
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end
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function M.test_rpc_server(config)
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if config.test_name then
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M.clear_notrace()
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fake_lsp_server_setup(config.test_name, config.timeout_ms or 1e3, config.options, config.settings)
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end
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local client = setmetatable({}, {
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__index = function(_, name)
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-- Workaround for not being able to yield() inside __index for Lua 5.1 :(
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-- Otherwise I would just return the value here.
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return function(...)
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return exec_lua([=[
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local name = ...
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if type(TEST_RPC_CLIENT[name]) == 'function' then
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return TEST_RPC_CLIENT[name](select(2, ...))
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else
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return TEST_RPC_CLIENT[name]
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end
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]=], name, ...)
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end
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end;
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})
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local code, signal
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local function on_request(method, args)
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if method == "init" then
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if config.on_init then
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config.on_init(client, unpack(args))
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end
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return NIL
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end
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if method == 'handler' then
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if config.on_handler then
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config.on_handler(unpack(args))
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end
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end
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return NIL
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end
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local function on_notify(method, args)
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if method == 'exit' then
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code, signal = unpack(args)
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return stop()
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end
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end
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-- TODO specify timeout?
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-- run(on_request, on_notify, config.on_setup, 1000)
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run(on_request, on_notify, config.on_setup)
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if config.on_exit then
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config.on_exit(code, signal)
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end
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stop()
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if config.test_name then
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exec_lua("vim.api.nvim_exec_autocmds('VimLeavePre', { modeline = false })")
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end
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end
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return M
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@@ -1,8 +1,9 @@
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local helpers = require('test.functional.helpers')(after_each)
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local lsp_helpers = require('test.functional.plugin.lsp.helpers')
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local assert_log = helpers.assert_log
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local clear = helpers.clear
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local buf_lines = helpers.buf_lines
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local clear = helpers.clear
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local command = helpers.command
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local dedent = helpers.dedent
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local exec_lua = helpers.exec_lua
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@@ -14,6 +15,7 @@ local pesc = helpers.pesc
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local insert = helpers.insert
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local funcs = helpers.funcs
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local retry = helpers.retry
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local stop = helpers.stop
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local NIL = helpers.NIL
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local read_file = require('test.helpers').read_file
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local write_file = require('test.helpers').write_file
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@@ -22,186 +24,19 @@ local meths = helpers.meths
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local is_os = helpers.is_os
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local skip = helpers.skip
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-- Use these to get access to a coroutine so that I can run async tests and use
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-- yield.
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local run, stop = helpers.run, helpers.stop
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local clear_notrace = lsp_helpers.clear_notrace
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local create_server_definition = lsp_helpers.create_server_definition
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local fake_lsp_code = lsp_helpers.fake_lsp_code
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local fake_lsp_logfile = lsp_helpers.fake_lsp_logfile
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local test_rpc_server = lsp_helpers.test_rpc_server
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-- TODO(justinmk): hangs on Windows https://github.com/neovim/neovim/pull/11837
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if skip(is_os('win')) then return end
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-- Fake LSP server.
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local fake_lsp_code = 'test/functional/fixtures/fake-lsp-server.lua'
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local fake_lsp_logfile = 'Xtest-fake-lsp.log'
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teardown(function()
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os.remove(fake_lsp_logfile)
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end)
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local function clear_notrace()
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-- problem: here be dragons
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-- solution: don't look for dragons to closely
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clear {env={
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NVIM_LUA_NOTRACK="1";
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VIMRUNTIME=os.getenv"VIMRUNTIME";
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}}
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end
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local create_server_definition = [[
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function _create_server(opts)
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opts = opts or {}
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local server = {}
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server.messages = {}
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function server.cmd(dispatchers)
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local closing = false
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local handlers = opts.handlers or {}
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local srv = {}
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function srv.request(method, params, callback)
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table.insert(server.messages, {
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method = method,
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params = params,
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})
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local handler = handlers[method]
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if handler then
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local response, err = handler(params)
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if response then
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callback(err, response)
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end
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elseif method == 'initialize' then
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callback(nil, {
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capabilities = opts.capabilities or {}
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})
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elseif method == 'shutdown' then
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callback(nil, nil)
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end
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local request_id = #server.messages
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return true, request_id
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end
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function srv.notify(method, params)
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table.insert(server.messages, {
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method = method,
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params = params
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})
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if method == 'exit' then
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dispatchers.on_exit(0, 15)
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end
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end
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function srv.is_closing()
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return closing
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end
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function srv.terminate()
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closing = true
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end
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return srv
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end
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return server
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end
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]]
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local function fake_lsp_server_setup(test_name, timeout_ms, options, settings)
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exec_lua([=[
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lsp = require('vim.lsp')
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local test_name, fixture_filename, logfile, timeout, options, settings = ...
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TEST_RPC_CLIENT_ID = lsp.start_client {
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cmd_env = {
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NVIM_LOG_FILE = logfile;
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NVIM_LUA_NOTRACK = "1";
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};
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cmd = {
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vim.v.progpath, '-Es', '-u', 'NONE', '--headless',
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"-c", string.format("lua TEST_NAME = %q", test_name),
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"-c", string.format("lua TIMEOUT = %d", timeout),
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"-c", "luafile "..fixture_filename,
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};
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handlers = setmetatable({}, {
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__index = function(t, method)
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return function(...)
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return vim.rpcrequest(1, 'handler', ...)
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end
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end;
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});
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workspace_folders = {{
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uri = 'file://' .. vim.loop.cwd(),
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name = 'test_folder',
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}};
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on_init = function(client, result)
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TEST_RPC_CLIENT = client
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vim.rpcrequest(1, "init", result)
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end;
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flags = {
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allow_incremental_sync = options.allow_incremental_sync or false;
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debounce_text_changes = options.debounce_text_changes or 0;
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};
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settings = settings;
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on_exit = function(...)
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vim.rpcnotify(1, "exit", ...)
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end;
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}
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]=], test_name, fake_lsp_code, fake_lsp_logfile, timeout_ms or 1e3, options or {}, settings or {})
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end
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local function test_rpc_server(config)
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if config.test_name then
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clear_notrace()
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fake_lsp_server_setup(config.test_name, config.timeout_ms or 1e3, config.options, config.settings)
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end
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local client = setmetatable({}, {
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__index = function(_, name)
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-- Workaround for not being able to yield() inside __index for Lua 5.1 :(
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-- Otherwise I would just return the value here.
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return function(...)
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return exec_lua([=[
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local name = ...
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if type(TEST_RPC_CLIENT[name]) == 'function' then
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return TEST_RPC_CLIENT[name](select(2, ...))
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else
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return TEST_RPC_CLIENT[name]
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end
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]=], name, ...)
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end
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end;
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})
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local code, signal
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local function on_request(method, args)
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if method == "init" then
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if config.on_init then
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config.on_init(client, unpack(args))
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end
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return NIL
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end
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if method == 'handler' then
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if config.on_handler then
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config.on_handler(unpack(args))
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end
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end
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return NIL
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end
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local function on_notify(method, args)
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if method == 'exit' then
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code, signal = unpack(args)
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return stop()
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end
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end
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-- TODO specify timeout?
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-- run(on_request, on_notify, config.on_setup, 1000)
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run(on_request, on_notify, config.on_setup)
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if config.on_exit then
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config.on_exit(code, signal)
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end
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stop()
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if config.test_name then
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exec_lua("vim.api.nvim_exec_autocmds('VimLeavePre', { modeline = false })")
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end
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end
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describe('LSP', function()
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before_each(function()
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clear_notrace()
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