diff options
Diffstat (limited to 'tests/node_compat/test/parallel/test-timers-non-integer-delay.js')
-rw-r--r-- | tests/node_compat/test/parallel/test-timers-non-integer-delay.js | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-timers-non-integer-delay.js b/tests/node_compat/test/parallel/test-timers-non-integer-delay.js new file mode 100644 index 000000000..1d3ca55c2 --- /dev/null +++ b/tests/node_compat/test/parallel/test-timers-non-integer-delay.js @@ -0,0 +1,88 @@ +// deno-fmt-ignore-file +// deno-lint-ignore-file + +// Copyright Joyent and Node contributors. All rights reserved. MIT license. +// Taken from Node 18.12.1 +// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually. + +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +'use strict'; +const common = require('../common'); +const assert = require('assert'); + +// This test makes sure that non-integer timer delays do not make the process +// hang. See https://github.com/joyent/node/issues/8065 and +// https://github.com/joyent/node/issues/8068 which have been fixed by +// https://github.com/joyent/node/pull/8073. +// +// If the process hangs, this test will make the tests suite timeout, +// otherwise it will exit very quickly (after 50 timers with a short delay +// fire). +// +// We have to set at least several timers with a non-integer delay to +// reproduce the issue. Sometimes, a timer with a non-integer delay will +// expire correctly. 50 timers has always been more than enough to reproduce +// it 100%. + +const TIMEOUT_DELAY = 1.1; +let N = 50; + +const interval = setInterval(common.mustCall(() => { + if (--N === 0) { + clearInterval(interval); + } +}, N), TIMEOUT_DELAY); + +// Test non-integer delay ordering +{ + const ordering = []; + + setTimeout(common.mustCall(() => { + ordering.push(1); + }), 1); + + setTimeout(common.mustCall(() => { + ordering.push(2); + }), 1.8); + + setTimeout(common.mustCall(() => { + ordering.push(3); + }), 1.1); + + setTimeout(common.mustCall(() => { + ordering.push(4); + }), 1); + + setTimeout(common.mustCall(() => { + const expected = [1, 2, 3, 4]; + + assert.deepStrictEqual( + ordering, + expected, + `Non-integer delay ordering should be ${expected}, but got ${ordering}` + ); + + // 2 should always be last of these delays due to ordering guarantees by + // the implementation. + }), 2); +} |