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052498ed42
Specifically, functions that are run in the context of the test runner are put in module `test/testutil.lua` while the functions that are run in the context of the test session are put in `test/functional/testnvim.lua`. Closes https://github.com/neovim/neovim/issues/27004.
404 lines
13 KiB
Lua
404 lines
13 KiB
Lua
-- Test server -> client RPC scenarios. Note: unlike `rpcnotify`, to evaluate
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-- `rpcrequest` calls we need the client event loop to be running.
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local t = require('test.testutil')
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local n = require('test.functional.testnvim')()
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local clear, eval = n.clear, n.eval
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local eq, neq, run, stop = t.eq, t.neq, n.run, n.stop
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local nvim_prog, command, fn = n.nvim_prog, n.command, n.fn
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local source, next_msg = n.source, n.next_msg
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local ok = t.ok
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local api = n.api
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local spawn, merge_args = n.spawn, n.merge_args
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local set_session = n.set_session
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local pcall_err = t.pcall_err
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local assert_alive = n.assert_alive
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describe('server -> client', function()
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local cid
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before_each(function()
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clear()
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cid = api.nvim_get_chan_info(0).id
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end)
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it('handles unexpected closed stream while preparing RPC response', function()
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source([[
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let g:_nvim_args = [v:progpath, '--embed', '--headless', '-n', '-u', 'NONE', '-i', 'NONE', ]
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let ch1 = jobstart(g:_nvim_args, {'rpc': v:true})
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let child1_ch = rpcrequest(ch1, "nvim_get_chan_info", 0).id
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call rpcnotify(ch1, 'nvim_eval', 'rpcrequest('.child1_ch.', "nvim_get_api_info")')
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let ch2 = jobstart(g:_nvim_args, {'rpc': v:true})
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let child2_ch = rpcrequest(ch2, "nvim_get_chan_info", 0).id
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call rpcnotify(ch2, 'nvim_eval', 'rpcrequest('.child2_ch.', "nvim_get_api_info")')
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call jobstop(ch1)
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]])
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assert_alive()
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end)
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describe('simple call', function()
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it('works', function()
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local function on_setup()
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eq({ 4, 5, 6 }, eval('rpcrequest(' .. cid .. ', "scall", 1, 2, 3)'))
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stop()
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end
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local function on_request(method, args)
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eq('scall', method)
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eq({ 1, 2, 3 }, args)
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command('let g:result = [4, 5, 6]')
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return eval('g:result')
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end
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run(on_request, nil, on_setup)
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end)
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end)
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describe('empty string handling in arrays', function()
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-- Because the msgpack encoding for an empty string was interpreted as an
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-- error, msgpack arrays with an empty string looked like
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-- [..., '', 0, ..., 0] after the conversion, regardless of the array
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-- elements following the empty string.
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it('works', function()
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local function on_setup()
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eq({ 1, 2, '', 3, 'asdf' }, eval('rpcrequest(' .. cid .. ', "nstring")'))
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stop()
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end
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local function on_request()
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-- No need to evaluate the args, we are only interested in
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-- a response that contains an array with an empty string.
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return { 1, 2, '', 3, 'asdf' }
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end
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run(on_request, nil, on_setup)
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end)
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end)
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describe('recursive call', function()
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it('works', function()
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local function on_setup()
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api.nvim_set_var('result1', 0)
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api.nvim_set_var('result2', 0)
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api.nvim_set_var('result3', 0)
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api.nvim_set_var('result4', 0)
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command('let g:result1 = rpcrequest(' .. cid .. ', "rcall", 2)')
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eq(4, api.nvim_get_var('result1'))
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eq(8, api.nvim_get_var('result2'))
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eq(16, api.nvim_get_var('result3'))
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eq(32, api.nvim_get_var('result4'))
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stop()
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end
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local function on_request(method, args)
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eq('rcall', method)
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local _n = unpack(args) * 2
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if _n <= 16 then
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local cmd
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if _n == 4 then
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cmd = 'let g:result2 = rpcrequest(' .. cid .. ', "rcall", ' .. _n .. ')'
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elseif _n == 8 then
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cmd = 'let g:result3 = rpcrequest(' .. cid .. ', "rcall", ' .. _n .. ')'
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elseif _n == 16 then
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cmd = 'let g:result4 = rpcrequest(' .. cid .. ', "rcall", ' .. _n .. ')'
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end
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command(cmd)
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end
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return _n
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end
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run(on_request, nil, on_setup)
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end)
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end)
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describe('requests and notifications interleaved', function()
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it('does not delay notifications during pending request', function()
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local received = false
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local function on_setup()
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eq('retval', fn.rpcrequest(cid, 'doit'))
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stop()
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end
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local function on_request(method)
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if method == 'doit' then
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fn.rpcnotify(cid, 'headsup')
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eq(true, received)
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return 'retval'
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end
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end
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local function on_notification(method)
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if method == 'headsup' then
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received = true
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end
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end
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run(on_request, on_notification, on_setup)
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end)
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-- This tests the following scenario:
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--
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-- server->client [request ] (1)
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-- client->server [request ] (2) triggered by (1)
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-- server->client [notification] (3) triggered by (2)
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-- server->client [response ] (4) response to (2)
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-- client->server [request ] (4) triggered by (3)
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-- server->client [request ] (5) triggered by (4)
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-- client->server [response ] (6) response to (1)
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--
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-- If the above scenario ever happens, the client connection will be closed
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-- because (6) is returned after request (5) is sent, and nvim
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-- only deals with one server->client request at a time. (In other words,
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-- the client cannot send a response to a request that is not at the top
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-- of nvim's request stack).
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pending('will close connection if not properly synchronized', function()
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local function on_setup()
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eq('notified!', eval('rpcrequest(' .. cid .. ', "notify")'))
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end
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local function on_request(method)
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if method == 'notify' then
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eq(1, eval('rpcnotify(' .. cid .. ', "notification")'))
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return 'notified!'
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elseif method == 'nested' then
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-- do some busywork, so the first request will return
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-- before this one
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for _ = 1, 5 do
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assert_alive()
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end
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eq(1, eval('rpcnotify(' .. cid .. ', "nested_done")'))
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return 'done!'
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end
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end
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local function on_notification(method)
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if method == 'notification' then
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eq('done!', eval('rpcrequest(' .. cid .. ', "nested")'))
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elseif method == 'nested_done' then
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ok(false, 'never sent', 'sent')
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end
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end
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run(on_request, on_notification, on_setup)
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-- ignore disconnect failure, otherwise detected by after_each
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clear()
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end)
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end)
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describe('recursive (child) nvim client', function()
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before_each(function()
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command(
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"let vim = rpcstart('"
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.. nvim_prog
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.. "', ['-u', 'NONE', '-i', 'NONE', '--cmd', 'set noswapfile', '--embed', '--headless'])"
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)
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neq(0, eval('vim'))
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end)
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after_each(function()
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command('call rpcstop(vim)')
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end)
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it('can send/receive notifications and make requests', function()
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command("call rpcnotify(vim, 'vim_set_current_line', 'SOME TEXT')")
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-- Wait for the notification to complete.
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command("call rpcrequest(vim, 'vim_eval', '0')")
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eq('SOME TEXT', eval("rpcrequest(vim, 'vim_get_current_line')"))
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end)
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it('can communicate buffers, tabpages, and windows', function()
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eq({ 1 }, eval("rpcrequest(vim, 'nvim_list_tabpages')"))
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-- Window IDs start at 1000 (LOWEST_WIN_ID in window.h)
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eq({ 1000 }, eval("rpcrequest(vim, 'nvim_list_wins')"))
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local buf = eval("rpcrequest(vim, 'nvim_list_bufs')")[1]
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eq(1, buf)
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eval("rpcnotify(vim, 'buffer_set_line', " .. buf .. ", 0, 'SOME TEXT')")
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command("call rpcrequest(vim, 'vim_eval', '0')") -- wait
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eq('SOME TEXT', eval("rpcrequest(vim, 'buffer_get_line', " .. buf .. ', 0)'))
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-- Call get_lines(buf, range [0,0], strict_indexing)
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eq({ 'SOME TEXT' }, eval("rpcrequest(vim, 'buffer_get_lines', " .. buf .. ', 0, 1, 1)'))
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end)
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it('returns an error if the request failed', function()
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eq(
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"Vim:Error invoking 'does-not-exist' on channel 3:\nInvalid method: does-not-exist",
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pcall_err(eval, "rpcrequest(vim, 'does-not-exist')")
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)
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end)
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end)
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describe('jobstart()', function()
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local jobid
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before_each(function()
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local channel = api.nvim_get_chan_info(0).id
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api.nvim_set_var('channel', channel)
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source([[
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function! s:OnEvent(id, data, event)
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call rpcnotify(g:channel, a:event, 0, a:data)
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endfunction
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let g:job_opts = {
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\ 'on_stderr': function('s:OnEvent'),
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\ 'on_exit': function('s:OnEvent'),
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\ 'user': 0,
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\ 'rpc': v:true
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\ }
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]])
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api.nvim_set_var('args', {
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nvim_prog,
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'-ll',
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'test/functional/api/rpc_fixture.lua',
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package.path,
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package.cpath,
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})
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jobid = eval('jobstart(g:args, g:job_opts)')
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neq(0, jobid)
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end)
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after_each(function()
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pcall(fn.jobstop, jobid)
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end)
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if t.skip(t.is_os('win')) then
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return
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end
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it('rpc and text stderr can be combined', function()
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local status, rv = pcall(fn.rpcrequest, jobid, 'poll')
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if not status then
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error(string.format('missing nvim Lua module? (%s)', rv))
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end
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eq('ok', rv)
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fn.rpcnotify(jobid, 'ping')
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eq({ 'notification', 'pong', {} }, next_msg())
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eq('done!', fn.rpcrequest(jobid, 'write_stderr', 'fluff\n'))
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eq({ 'notification', 'stderr', { 0, { 'fluff', '' } } }, next_msg())
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pcall(fn.rpcrequest, jobid, 'exit')
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eq({ 'notification', 'stderr', { 0, { '' } } }, next_msg())
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eq({ 'notification', 'exit', { 0, 0 } }, next_msg())
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end)
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end)
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describe('connecting to another (peer) nvim', function()
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local nvim_argv = merge_args(n.nvim_argv, { '--headless' })
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local function connect_test(server, mode, address)
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local serverpid = fn.getpid()
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local client = spawn(nvim_argv, false, nil, true)
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set_session(client)
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local clientpid = fn.getpid()
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neq(serverpid, clientpid)
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local id = fn.sockconnect(mode, address, { rpc = true })
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ok(id > 0)
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fn.rpcrequest(id, 'nvim_set_current_line', 'hello')
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local client_id = fn.rpcrequest(id, 'nvim_get_chan_info', 0).id
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set_session(server)
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eq(serverpid, fn.getpid())
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eq('hello', api.nvim_get_current_line())
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-- method calls work both ways
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fn.rpcrequest(client_id, 'nvim_set_current_line', 'howdy!')
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eq(id, fn.rpcrequest(client_id, 'nvim_get_chan_info', 0).id)
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set_session(client)
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eq(clientpid, fn.getpid())
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eq('howdy!', api.nvim_get_current_line())
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server:close()
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client:close()
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end
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it('via named pipe', function()
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local server = spawn(nvim_argv)
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set_session(server)
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local address = fn.serverlist()[1]
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local first = string.sub(address, 1, 1)
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ok(first == '/' or first == '\\')
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connect_test(server, 'pipe', address)
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end)
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it('via ipv4 address', function()
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local server = spawn(nvim_argv)
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set_session(server)
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local status, address = pcall(fn.serverstart, '127.0.0.1:')
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if not status then
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pending('no ipv4 stack')
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end
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eq('127.0.0.1:', string.sub(address, 1, 10))
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connect_test(server, 'tcp', address)
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end)
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it('via ipv6 address', function()
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local server = spawn(nvim_argv)
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set_session(server)
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local status, address = pcall(fn.serverstart, '::1:')
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if not status then
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pending('no ipv6 stack')
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end
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eq('::1:', string.sub(address, 1, 4))
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connect_test(server, 'tcp', address)
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end)
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it('via hostname', function()
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local server = spawn(nvim_argv)
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set_session(server)
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local address = fn.serverstart('localhost:')
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eq('localhost:', string.sub(address, 1, 10))
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connect_test(server, 'tcp', address)
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end)
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it('does not crash on receiving UI events', function()
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local server = spawn(nvim_argv)
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set_session(server)
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local address = fn.serverlist()[1]
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local client = spawn(nvim_argv, false, nil, true)
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set_session(client)
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local id = fn.sockconnect('pipe', address, { rpc = true })
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fn.rpcrequest(id, 'nvim_ui_attach', 80, 24, {})
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assert_alive()
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server:close()
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client:close()
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end)
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it('via stdio, with many small flushes does not crash #23781', function()
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source([[
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let chan = jobstart([v:progpath, '--embed', '--headless', '-n', '-u', 'NONE', '-i', 'NONE'], { 'rpc':v:false })
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call chansend(chan, 0Z94)
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sleep 50m
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call chansend(chan, 0Z00)
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call chansend(chan, 0Z01)
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call chansend(chan, 0ZAC)
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call chansend(chan, 0Z6E76696D5F636F6D6D616E64)
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call chansend(chan, 0Z91)
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call chansend(chan, 0ZA5)
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call chansend(chan, 0Z71616C6C21)
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let g:statuses = jobwait([chan])
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]])
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eq(eval('g:statuses'), { 0 })
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assert_alive()
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end)
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end)
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describe('connecting to its own pipe address', function()
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it('does not deadlock', function()
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local address = fn.serverlist()[1]
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local first = string.sub(address, 1, 1)
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ok(first == '/' or first == '\\')
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local serverpid = fn.getpid()
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local id = fn.sockconnect('pipe', address, { rpc = true })
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fn.rpcrequest(id, 'nvim_set_current_line', 'hello')
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eq('hello', api.nvim_get_current_line())
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eq(serverpid, fn.rpcrequest(id, 'nvim_eval', 'getpid()'))
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eq(id, fn.rpcrequest(id, 'nvim_get_chan_info', 0).id)
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end)
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end)
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end)
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