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local helpers = require('test.functional.helpers')(after_each)
local call = helpers.call
local clear = helpers.clear
local command = helpers.command
local eval = helpers.eval
local eq = helpers.eq
local feed = helpers.feed
local feed_command = helpers.feed_command
local next_msg = helpers.next_msg
local api = helpers.api
local source = helpers.source
local pcall_err = helpers.pcall_err
before_each(function()
clear()
local channel = api.nvim_get_chan_info(0).id
api.nvim_set_var('channel', channel)
end)
describe('wait()', function()
it('waits and returns 0 when condition is satisfied', function()
source([[
let g:_awake = 0
call timer_start(100, { -> nvim_command('let g:_awake = 1') })
]])
eq(0, eval('g:_awake'))
eq(0, eval('wait(1500, { -> g:_awake })'))
eq(1, eval('g:_awake'))
eq(0, eval('wait(0, 1)'))
end)
it('returns -1 on timeout', function()
eq(-1, eval('wait(0, 0)'))
eq(-1, eval('wait(50, 0)'))
end)
it('returns -2 when interrupted', function()
feed_command(
'call rpcnotify(g:channel, "ready") | ' .. 'call rpcnotify(g:channel, "wait", wait(-1, 0))'
)
eq({ 'notification', 'ready', {} }, next_msg())
feed('<c-c>')
eq({ 'notification', 'wait', { -2 } }, next_msg())
end)
it('returns -3 on error', function()
command('silent! let ret = wait(-1, "error")')
eq(-3, eval('ret'))
command('let ret = 0 | silent! let ret = wait(-1, { -> error })')
eq(-3, eval('ret'))
end)
it('evaluates the condition on given interval', function()
source([[
function Count()
let g:counter += 1
return g:counter
endfunction
]])
-- XXX: flaky (#11137)
helpers.retry(nil, nil, function()
api.nvim_set_var('counter', 0)
eq(-1, call('wait', 20, 'Count() >= 5', 99999))
end)
api.nvim_set_var('counter', 0)
eq(0, call('wait', 10000, 'Count() >= 5', 5))
eq(5, api.nvim_get_var('counter'))
end)
it('validates args', function()
eq('Vim:E475: Invalid value for argument 1', pcall_err(call, 'wait', '', 1))
eq('Vim:E475: Invalid value for argument 3', pcall_err(call, 'wait', 0, 1, -1))
eq('Vim:E475: Invalid value for argument 3', pcall_err(call, 'wait', 0, 1, 0))
eq('Vim:E475: Invalid value for argument 3', pcall_err(call, 'wait', 0, 1, ''))
end)
end)
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