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local helpers = require('test.functional.helpers')(after_each)
local Screen = require('test.functional.ui.screen')
local feed, eq, eval, ok = helpers.feed, helpers.eq, helpers.eval, helpers.ok
local source, nvim_async, run = helpers.source, helpers.nvim_async, helpers.run
local clear, command, fn = helpers.clear, helpers.command, helpers.fn
local exc_exec = helpers.exc_exec
local api = helpers.api
local load_adjust = helpers.load_adjust
local retry = helpers.retry
describe('timers', function()
before_each(function()
clear()
source([[
let g:val = 0
func MyHandler(timer)
let g:val += 1
endfunc
]])
end)
it('works one-shot', function()
eq(0, eval("[timer_start(10, 'MyHandler'), g:val][1]"))
run(nil, nil, nil, load_adjust(100))
eq(1, eval('g:val'))
end)
it('works one-shot when repeat=0', function()
eq(0, eval("[timer_start(10, 'MyHandler', {'repeat': 0}), g:val][1]"))
run(nil, nil, nil, load_adjust(100))
eq(1, eval('g:val'))
end)
it('works with repeat two', function()
eq(0, eval("[timer_start(10, 'MyHandler', {'repeat': 2}), g:val][1]"))
run(nil, nil, nil, load_adjust(20))
retry(nil, load_adjust(300), function()
eq(2, eval('g:val'))
end)
end)
it('are triggered during sleep', function()
source([[
let g:val = -1
func! MyHandler(timer)
if g:val >= 0
let g:val += 1
if g:val == 2
call timer_stop(a:timer)
endif
endif
endfunc
]])
eval("timer_start(10, 'MyHandler', {'repeat': -1})")
nvim_async('command', 'sleep 10')
eq(-1, eval('g:val')) -- timer did nothing yet.
nvim_async('command', 'let g:val = 0')
run(nil, nil, nil, load_adjust(20))
retry(nil, nil, function()
eq(2, eval('g:val'))
end)
end)
it('works with zero timeout', function()
-- timer_start does still not invoke the callback immediately
eq(0, eval("[timer_start(0, 'MyHandler', {'repeat': 1000}), g:val][1]"))
retry(nil, nil, function()
eq(1000, eval('g:val'))
end)
end)
it('can be started during sleep', function()
nvim_async('command', 'sleep 10')
-- this also tests that remote requests works during sleep
eq(0, eval("[timer_start(10, 'MyHandler', {'repeat': 2}), g:val][1]"))
run(nil, nil, nil, load_adjust(20))
retry(nil, load_adjust(300), function()
eq(2, eval('g:val'))
end)
end)
it('are paused when event processing is disabled', function()
command("call timer_start(5, 'MyHandler', {'repeat': -1})")
run(nil, nil, nil, load_adjust(10))
local count = eval('g:val')
-- shows two line error message and thus invokes the return prompt.
-- if we start to allow event processing here, we need to change this test.
feed(':throw "fatal error"<CR>')
run(nil, nil, nil, load_adjust(30))
feed('<cr>')
local diff = eval('g:val') - count
assert(0 <= diff and diff <= 4, 'expected (0 <= diff <= 4), got: ' .. tostring(diff))
end)
it('are triggered in blocking getchar() call', function()
command("call timer_start(5, 'MyHandler', {'repeat': -1})")
nvim_async('command', 'let g:val = 0 | let g:c = getchar()')
retry(nil, nil, function()
local val = eval('g:val')
ok(val >= 2, '>= 2', tostring(val))
eq(0, eval('getchar(1)'))
end)
feed('c')
eq(99, eval('g:c'))
end)
it('can invoke redraw in blocking getchar() call', function()
local screen = Screen.new(40, 6)
screen:attach()
screen:set_default_attr_ids({
[1] = { bold = true, foreground = Screen.colors.Blue },
})
api.nvim_buf_set_lines(0, 0, -1, true, { 'ITEM 1', 'ITEM 2' })
source([[
let g:cont = 0
func! AddItem(timer)
if !g:cont
return
endif
call timer_stop(a:timer)
call nvim_buf_set_lines(0, 2, 2, v:true, ['ITEM 3'])
" Meant to test for what Vim tests in Test_peek_and_get_char.
call getchar(1)
redraw
endfunc
]])
nvim_async('command', 'let g:c2 = getchar()')
nvim_async('command', 'call timer_start(' .. load_adjust(100) .. ", 'AddItem', {'repeat': -1})")
screen:expect([[
^ITEM 1 |
ITEM 2 |
{1:~ }|*3
|
]])
nvim_async('command', 'let g:cont = 1')
screen:expect([[
^ITEM 1 |
ITEM 2 |
ITEM 3 |
{1:~ }|*2
|
]])
feed('3')
eq(51, eval('g:c2'))
screen:expect {
grid = [[
^ITEM 1 |
ITEM 2 |
ITEM 3 |
{1:~ }|*2
|
]],
unchanged = true,
}
end)
it('can be stopped', function()
local t_init_val = eval("[timer_start(5, 'MyHandler', {'repeat': -1}), g:val]")
eq(0, t_init_val[2])
run(nil, nil, nil, load_adjust(30))
fn.timer_stop(t_init_val[1])
local count = eval('g:val')
run(nil, load_adjust(300), nil, load_adjust(30))
local count2 = eval('g:val')
-- when count is eval:ed after timer_stop this should be non-racy
eq(count, count2)
end)
it('can be stopped from the handler', function()
source([[
func! MyHandler(timer)
let g:val += 1
if g:val == 3
call timer_stop(a:timer)
" check double stop is ignored
call timer_stop(a:timer)
endif
endfunc
]])
eq(0, eval('g:val'))
command("call timer_start(10, 'MyHandler', {'repeat': -1})")
retry(nil, nil, function()
eq(3, eval('g:val'))
end)
end)
it('can have two timers', function()
source([[
let g:val2 = 0
func! MyHandler2(timer)
let g:val2 += 1
endfunc
]])
command("call timer_start(2, 'MyHandler', {'repeat': 3})")
command("call timer_start(4, 'MyHandler2', {'repeat': 2})")
retry(nil, nil, function()
eq(3, eval('g:val'))
eq(2, eval('g:val2'))
end)
end)
it('do not crash when processing events in the handler', function()
source([[
let g:val = 0
func! MyHandler(timer)
call timer_stop(a:timer)
sleep 10m
let g:val += 1
endfunc
]])
command("call timer_start(5, 'MyHandler', {'repeat': 1})")
run(nil, nil, nil, load_adjust(20))
retry(nil, load_adjust(150), function()
eq(1, eval('g:val'))
end)
end)
it("doesn't mess up the cmdline", function()
local screen = Screen.new(40, 6)
screen:attach()
screen:set_default_attr_ids({ [0] = { bold = true, foreground = 255 } })
source([[
let g:val = 0
func! MyHandler(timer)
while !g:val
return
endwhile
call timer_stop(a:timer)
echo "evil"
redraw
let g:val = 2
endfunc
]])
command("call timer_start(100, 'MyHandler', {'repeat': -1})")
feed(':good')
screen:expect([[
|
{0:~ }|*4
:good^ |
]])
command('let g:val = 1')
screen:expect_unchanged(true, load_adjust(200))
eq(2, eval('g:val'))
end)
it("timer_start can't be used in the sandbox", function()
source [[
function! Scary(timer) abort
call execute('echo ''execute() should be disallowed''', '')
endfunction
]]
eq('Vim(call):E48: Not allowed in sandbox', exc_exec("sandbox call timer_start(0, 'Scary')"))
end)
it('can be triggered after an empty string <expr> mapping #17257', function()
local screen = Screen.new(40, 6)
screen:attach()
command([=[imap <expr> <F2> [timer_start(0, { _ -> execute("throw 'x'", "") }), ''][-1]]=])
feed('i<F2>')
screen:expect({ any = 'E605: Exception not caught: x' })
end)
end)
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