43 lines
1.7 KiB
JavaScript
43 lines
1.7 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/ */
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/**
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* Test AudioNode#addAutomationEvent() when automation series ends with
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* `setTargetAtTime`, which approaches its target to infinity.
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*/
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add_task(function* () {
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let { target, front } = yield initBackend(SIMPLE_CONTEXT_URL);
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let [_, [destNode, oscNode, gainNode]] = yield Promise.all([
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front.setup({ reload: true }),
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get3(front, "create-node")
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]);
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yield oscNode.addAutomationEvent("frequency", "setValueAtTime", [300, 0.1]);
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yield oscNode.addAutomationEvent("frequency", "linearRampToValueAtTime", [500, 0.4]);
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yield oscNode.addAutomationEvent("frequency", "exponentialRampToValueAtTime", [200, 0.6]);
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// End with a setTargetAtTime event, as the target approaches infinity, which will
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// give us more points to render than the default 2000
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yield oscNode.addAutomationEvent("frequency", "setTargetAtTime", [1000, 2, 0.5]);
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var { events, values } = yield oscNode.getAutomationData("frequency");
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is(events.length, 4, "4 recorded events returned.");
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is(values.length, 4000, "4000 value points returned when ending with exponentiall approaching automator.");
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checkAutomationValue(values, 2.01, 215.055);
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checkAutomationValue(values, 2.1, 345.930);
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checkAutomationValue(values, 3, 891.601);
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checkAutomationValue(values, 5, 998.01);
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// Refetch the automation data to ensure it recalculates correctly (bug 1118071)
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var { events, values } = yield oscNode.getAutomationData("frequency");
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checkAutomationValue(values, 2.01, 215.055);
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checkAutomationValue(values, 2.1, 345.930);
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checkAutomationValue(values, 3, 891.601);
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checkAutomationValue(values, 5, 998.01);
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yield removeTab(target.tab);
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});
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