neovim/test/functional/eval/timer_spec.lua
2020-12-31 16:44:53 -05:00

266 lines
8.0 KiB
Lua

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, funcs = helpers.clear, helpers.command, helpers.funcs
local curbufmeths = helpers.curbufmeths
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, "expected >= 2, got: "..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},
})
curbufmeths.set_lines(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:~ }|
{1:~ }|
{1:~ }|
^ |
]])
nvim_async("command", "let g:cont = 1")
screen:expect([[
ITEM 1 |
ITEM 2 |
ITEM 3 |
{1:~ }|
{1:~ }|
^ |
]])
feed("3")
eq(51, eval("g:c2"))
screen:expect([[
^ITEM 1 |
ITEM 2 |
ITEM 3 |
{1:~ }|
{1:~ }|
|
]])
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))
funcs.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:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
:good^ |
]])
command('let g:val = 1')
screen:expect{grid=[[
|
{0:~ }|
{0:~ }|
{0:~ }|
{0:~ }|
:good^ |
]], intermediate=true, timeout=load_adjust(200)}
eq(2, eval('g:val'))
end)
end)