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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/base/test/test_setInterval_from_start.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/base/test/test_setInterval_from_start.html')
| -rw-r--r-- | dom/base/test/test_setInterval_from_start.html | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/dom/base/test/test_setInterval_from_start.html b/dom/base/test/test_setInterval_from_start.html new file mode 100644 index 0000000000..129705c65c --- /dev/null +++ b/dom/base/test/test_setInterval_from_start.html @@ -0,0 +1,57 @@ +<!DOCTYPE HTML> +<html> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id=1252268 +--> +<head> + <meta charset="utf-8"> + <title>Test for Bug 1378394</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> +</head> +<body> +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1378394">Mozilla Bug 1378394</a> + +<script> +SimpleTest.waitForExplicitFinish(); + +// Some of our platforms are quite slow. Use very large time values to +// try to avoid raciness. +const burnTimeMS = 5000; +const intervalTimeMS = 10000; + +// The overall interval should include our callback "burn time". So we +// expect the delay to be the remaining time. +const expectedDelayMS = intervalTimeMS - burnTimeMS; + +// Allow some margin for error because of slow test platforms. +const allowedMarginMS = burnTimeMS / 2; + +let id; +let lastEndTime; + +function interval() +{ + let start = performance.now(); + + if (lastEndTime !== undefined) { + let delta = start - lastEndTime; + ok(delta <= expectedDelayMS + allowedMarginMS, + 'interval should not fire too late'); + ok(delta >= expectedDelayMS - allowedMarginMS, + 'interval should not fire too early'); + clearInterval(id); + SimpleTest.finish(); + return; + } + + while((performance.now() - start) < burnTimeMS); + + lastEndTime = performance.now(); +} + +id = setInterval(interval, intervalTimeMS); +</script> + +</body> +</html> |