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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /dom/media/webaudio/test/test_slowStart.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/webaudio/test/test_slowStart.html')
| -rw-r--r-- | dom/media/webaudio/test/test_slowStart.html | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_slowStart.html b/dom/media/webaudio/test/test_slowStart.html new file mode 100644 index 0000000000..17de7351c1 --- /dev/null +++ b/dom/media/webaudio/test/test_slowStart.html @@ -0,0 +1,48 @@ +<!DOCTYPE HTML> +<html> +<head> + <title>Test AudioContext.currentTime</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> +</head> +<body> +<pre id="test"> +<script class="testbody" type="text/javascript"> + +SimpleTest.waitForExplicitFinish(); +SimpleTest.requestFlakyTimeout("This test needs to periodically query the AudioContext's position."); +const CUBEB_INIT_DELAY = 5000; +// Delay audio stream start by a good 5 seconds +SpecialPowers.pushPrefEnv({"set": [["media.cubeb.slow_stream_init_ms", + CUBEB_INIT_DELAY]]}, runTest); + + +function runTest() { + let ac = new AudioContext(); + let notStartedYetCount = 0; + let startWallClockTime = performance.now(); + is(ac.currentTime, 0, "AudioContext.currentTime should be 0 initially"); + is(ac.state, "suspended", "AudioContext.currentTime is initially suspended"); + let intervalHandle = setInterval(function() { + if (ac.state == "running" || ac.currentTime > 0) { + clearInterval(intervalHandle); + return; + } + is(ac.currentTime, 0, "AudioContext.currentTime is still 0"); + is(ac.state, "suspended", "AudioContext.currentTime is still suspended"); + notStartedYetCount++; + }); + ac.onstatechange = function() { + is(ac.state, "running", "The AudioContext eventually started."); + var startDuration = performance.now() - startWallClockTime; + info(`AudioContext start time with a delay of ${CUBEB_INIT_DELAY}): ${startDuration}`); + ok(notStartedYetCount > 0, "We should have observed the AudioContext in \"suspended\" state"); + ok(startDuration >= CUBEB_INIT_DELAY, "The AudioContext state transition was correct."); + SimpleTest.finish(); + } +} + +</script> +</pre> +</body> +</html> |