<!DOCTYPE html>
<html>
<body>
<script src="../resources/js-test.js"></script>
<script>
description("Tests that calling AudioContext.resume() while already running resolves the promise.");
jsTestIsAsync = true;

function didStartRendering()
{
    context.onstatechange = null;
    testPassed("Did start rendering");
    shouldBeEqualToString("context.state", "running");
    context.resume().then(() => {
        testPassed("Calling resume() while running resolved the promise");
        shouldBeEqualToString("context.state", "running");
        context.resume().then(() => {
            testPassed("Calling resume() while running resolved the promise");
            shouldBeEqualToString("context.state", "running");
            finishJSTest();
        }, (e) => {
            testFailed("Second call to context.resume() unexpectedly threw an exception: " + e);
            finishJSTest();
        });
    }, (e) => {
        testFailed("First call to context.resume() unexpectedly threw an exception: " + e);
        finishJSTest();
    });
}

let context = new AudioContext;
var source = context.createConstantSource();
source.connect(context.destination);

context.onstatechange = didStartRendering;
source.start();
</script>
</html>