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local n = require('test.functional.testnvim')()
local clear = n.clear
local exec_lua = n.exec_lua
local run = n.run
local stop = n.stop
local api = n.api
local NIL = vim.NIL
local M = {}
function M.clear_notrace()
-- problem: here be dragons
-- solution: don't look too closely for dragons
clear {
env = {
NVIM_LUA_NOTRACK = '1',
NVIM_APPNAME = 'nvim_lsp_test',
VIMRUNTIME = os.getenv 'VIMRUNTIME',
},
}
end
M.create_tcp_echo_server = function()
--- Create a TCP server that echos the first message it receives.
--- @param host string
---@return uv.uv_tcp_t
---@return integer
---@return fun():string|nil
function _G._create_tcp_server(host)
local uv = vim.uv
local server = assert(uv.new_tcp())
local init = nil
server:bind(host, 0)
server:listen(127, function(err)
assert(not err, err)
local socket = assert(uv.new_tcp())
server:accept(socket)
socket:read_start(require('vim.lsp.rpc').create_read_loop(function(body)
init = body
socket:close()
end))
end)
local port = server:getsockname().port
return server, port, function()
return init
end
end
end
M.create_server_definition = function()
function _G._create_server(opts)
opts = opts or {}
local server = {}
server.messages = {}
function server.cmd(dispatchers)
local closing = false
local handlers = opts.handlers or {}
local srv = {}
function srv.request(method, params, callback)
table.insert(server.messages, {
method = method,
params = params,
})
local handler = handlers[method]
if handler then
handler(method, params, callback)
elseif method == 'initialize' then
callback(nil, {
capabilities = opts.capabilities or {},
})
elseif method == 'shutdown' then
callback(nil, nil)
end
local request_id = #server.messages
return true, request_id
end
function srv.notify(method, params)
table.insert(server.messages, {
method = method,
params = params,
})
if method == 'exit' then
dispatchers.on_exit(0, 15)
end
end
function srv.is_closing()
return closing
end
function srv.terminate()
closing = true
end
return srv
end
return server
end
end
-- Fake LSP server.
M.fake_lsp_code = 'test/functional/fixtures/fake-lsp-server.lua'
M.fake_lsp_logfile = 'Xtest-fake-lsp.log'
local function fake_lsp_server_setup(test_name, timeout_ms, options, settings)
exec_lua(function(fake_lsp_code, fake_lsp_logfile, timeout)
options = options or {}
settings = settings or {}
_G.lsp = require('vim.lsp')
_G.TEST_RPC_CLIENT_ID = _G.lsp.start_client {
cmd_env = {
NVIM_LOG_FILE = fake_lsp_logfile,
NVIM_LUA_NOTRACK = '1',
NVIM_APPNAME = 'nvim_lsp_test',
},
cmd = {
vim.v.progpath,
'-l',
fake_lsp_code,
test_name,
tostring(timeout),
},
handlers = setmetatable({}, {
__index = function(_t, _method)
return function(...)
return vim.rpcrequest(1, 'handler', ...)
end
end,
}),
workspace_folders = {
{
uri = 'file://' .. vim.uv.cwd(),
name = 'test_folder',
},
},
before_init = function(_params, _config)
vim.schedule(function()
vim.rpcrequest(1, 'setup')
end)
end,
on_init = function(client, result)
_G.TEST_RPC_CLIENT = client
vim.rpcrequest(1, 'init', result)
end,
flags = {
allow_incremental_sync = options.allow_incremental_sync or false,
debounce_text_changes = options.debounce_text_changes or 0,
},
settings = settings,
on_exit = function(...)
vim.rpcnotify(1, 'exit', ...)
end,
}
end, M.fake_lsp_code, M.fake_lsp_logfile, timeout_ms or 1e3)
end
--- @class test.lsp.Config
--- @field test_name string
--- @field timeout_ms? integer
--- @field options? table
--- @field settings? table
---
--- @field on_setup? fun()
--- @field on_init? fun(client: vim.lsp.Client, ...)
--- @field on_handler? fun(...)
--- @field on_exit? fun(code: integer, signal: integer)
--- @param config test.lsp.Config
function M.test_rpc_server(config)
if config.test_name then
M.clear_notrace()
fake_lsp_server_setup(
config.test_name,
config.timeout_ms or 1e3,
config.options,
config.settings
)
end
local client = setmetatable({}, {
__index = function(t, name)
-- Workaround for not being able to yield() inside __index for Lua 5.1 :(
-- Otherwise I would just return the value here.
return function(arg1, ...)
local ismethod = arg1 == t
return exec_lua(function(...)
local client = _G.TEST_RPC_CLIENT
if type(client[name]) == 'function' then
return client[name](ismethod and client or arg1, ...)
end
return client[name]
end, ...)
end
end,
})
--- @type integer, integer
local code, signal
local function on_request(method, args)
if method == 'setup' then
if config.on_setup then
config.on_setup()
end
return NIL
end
if method == 'init' then
if config.on_init then
config.on_init(client, unpack(args))
end
return NIL
end
if method == 'handler' then
if config.on_handler then
config.on_handler(unpack(args))
end
end
return NIL
end
local function on_notify(method, args)
if method == 'exit' then
code, signal = unpack(args)
return stop()
end
end
-- TODO specify timeout?
-- run(on_request, on_notify, nil, 1000)
run(on_request, on_notify, nil)
if config.on_exit then
config.on_exit(code, signal)
end
stop()
if config.test_name then
api.nvim_exec_autocmds('VimLeavePre', { modeline = false })
end
end
return M
|
