Bug 1424271 - convert mochitest test_audioParamChaining.html to a web-platform-test r?padenot
MozReview-Commit-ID: 9E0hmjdofjZ
--- a/testing/web-platform/meta/MANIFEST.json
+++ b/testing/web-platform/meta/MANIFEST.json
@@ -348594,16 +348594,22 @@
]
],
"webaudio/the-audio-api/the-audiocontext-interface/test_audioDestinationNode.html": [
[
"/webaudio/the-audio-api/the-audiocontext-interface/test_audioDestinationNode.html",
{}
]
],
+ "webaudio/the-audio-api/the-audiocontext-interface/test_audioParamChaining.html": [
+ [
+ "/webaudio/the-audio-api/the-audiocontext-interface/test_audioParamChaining.html",
+ {}
+ ]
+ ],
"webaudio/the-audio-api/the-audiodestinationnode-interface/idl-test.html": [
[
"/webaudio/the-audio-api/the-audiodestinationnode-interface/idl-test.html",
{}
]
],
"webaudio/the-audio-api/the-audionode-interface/audionode-connect-return-value.html": [
[
@@ -576527,16 +576533,20 @@
"webaudio/the-audio-api/the-audiocontext-interface/test_AudioListener.html": [
"940029c8ed0a0dcf87d618a64cdb3358deb5a7bf",
"testharness"
],
"webaudio/the-audio-api/the-audiocontext-interface/test_audioDestinationNode.html": [
"10a4852ec668833e7047610aa0085861a9f96f56",
"testharness"
],
+ "webaudio/the-audio-api/the-audiocontext-interface/test_audioParamChaining.html": [
+ "8bac09e81d915712b8c3d3e131809b0583557849",
+ "testharness"
+ ],
"webaudio/the-audio-api/the-audiodestinationnode-interface/.gitkeep": [
"da39a3ee5e6b4b0d3255bfef95601890afd80709",
"support"
],
"webaudio/the-audio-api/the-audiodestinationnode-interface/idl-test.html": [
"3e8b55e707434899be9af13334d935368579f1dc",
"testharness"
],
new file mode 100644
--- /dev/null
+++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audiocontext-interface/test_audioParamChaining.html
@@ -0,0 +1,100 @@
+<!DOCTYPE html>
+<html>
+<head>
+ <meta charset="utf-8">
+ <script src="/resources/testharness.js"></script>
+ <script src="/resources/testharnessreport.js"></script>
+ <script>
+var t = async_test();
+
+function frameToTime(frame, rate) {
+ return frame / rate;
+}
+
+const RATE = 44100;
+
+var oc = new OfflineAudioContext(1, 44100, RATE);
+// This allows us to have a source that is simply a DC offset.
+var source = oc.createBufferSource();
+var buf = oc.createBuffer(1, 1, RATE);
+buf.getChannelData(0)[0] = 1;
+source.loop = true;
+source.buffer = buf;
+
+source.start(0);
+
+var gain = oc.createGain();
+
+source.connect(gain).connect(oc.destination);
+
+var gain2 = oc.createGain();
+var rv2 = gain2.gain.linearRampToValueAtTime(0.1, 0.5);
+assert_true(
+ rv2 instanceof AudioParam,
+ "linearRampToValueAtTime returns an AudioParam."
+);
+assert_true(
+ rv2 == gain2.gain,
+ "linearRampToValueAtTime returns the right AudioParam."
+);
+
+rv2 = gain2.gain.exponentialRampToValueAtTime(0.01, 1.0);
+assert_true(
+ rv2 instanceof AudioParam,
+ "exponentialRampToValueAtTime returns an AudioParam."
+);
+assert_true(
+ rv2 == gain2.gain,
+ "exponentialRampToValueAtTime returns the right AudioParam."
+);
+
+rv2 = gain2.gain.setTargetAtTime(1.0, 2.0, 0.1);
+assert_true(
+ rv2 instanceof AudioParam,
+ "setTargetAtTime returns an AudioParam."
+);
+assert_true(rv2 == gain2.gain, "setTargetAtTime returns the right AudioParam.");
+
+var array = new Float32Array(10);
+rv2 = gain2.gain.setValueCurveAtTime(array, 10, 11);
+assert_true(
+ rv2 instanceof AudioParam,
+ "setValueCurveAtTime returns an AudioParam."
+);
+assert_true(
+ rv2 == gain2.gain,
+ "setValueCurveAtTime returns the right AudioParam."
+);
+
+// We chain three automation methods, making a gain step.
+var rv = gain.gain
+ .setValueAtTime(0, frameToTime(0, RATE))
+ .setValueAtTime(0.5, frameToTime(22000, RATE))
+ .setValueAtTime(1, frameToTime(44000, RATE));
+
+assert_true(rv instanceof AudioParam, "setValueAtTime returns an AudioParam.");
+assert_true(rv == gain.gain, "setValueAtTime returns the right AudioParam.");
+
+oc.startRendering().then(function(rendered) {
+ console.log(rendered.getChannelData(0));
+ assert_equals(
+ rendered.getChannelData(0)[0],
+ 0,
+ "The value of the first step is correct."
+ );
+ assert_equals(
+ rendered.getChannelData(0)[22050],
+ 0.5,
+ "The value of the second step is correct"
+ );
+ assert_equals(
+ rendered.getChannelData(0)[44099],
+ 1,
+ "The value of the third step is correct."
+ );
+ t.done();
+});
+ </script>
+</head>
+</body>
+</html>