Add test to check that AudioBuffers can be reused between AudioBuffer…

…SourceNodes
servo · Oct 11, 2018 · 52d898d · 52d898d
1 parent 091ad49
commit 52d898d
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diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
@@ -404385,6 +404385,12 @@
      {}
     ]
    ],
+   "webaudio/the-audio-api/the-audiobuffer-interface/audiobuffer-reuse.html": [
+    [
+     "/webaudio/the-audio-api/the-audiobuffer-interface/audiobuffer-reuse.html",
+     {}
+    ]
+   ],
    "webaudio/the-audio-api/the-audiobuffer-interface/audiobuffer.html": [
     [
      "/webaudio/the-audio-api/the-audiobuffer-interface/audiobuffer.html",
@@ -663014,6 +663020,10 @@
    "612a91cf4ef60f6f1d441d27e2ab86f32b94f0fd",
    "testharness"
   ],
+  "webaudio/the-audio-api/the-audiobuffer-interface/audiobuffer-reuse.html": [
+   "dabe323cbe2226d32c63576199eda61c1aecb168",
+   "testharness"
+  ],
   "webaudio/the-audio-api/the-audiobuffer-interface/audiobuffer.html": [
    "a2c4581c4e80069f227fe29078bc3eb6409c8b4e",
    "testharness"

diff --git a/...eb-platform-tests/webaudio/the-audio-api/the-audiobuffer-interface/audiobuffer-reuse.html b/...eb-platform-tests/webaudio/the-audio-api/the-audiobuffer-interface/audiobuffer-reuse.html
@@ -0,0 +1,36 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>AudioBuffer can be reused between AudioBufferSourceNodes</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+function render_audio_context() {
+  let sampleRate = 44100;
+  let context = new OfflineAudioContext(
+      2, sampleRate *  0.1, sampleRate);
+  let buf = context.createBuffer(1, 0.1 * sampleRate, context.sampleRate);
+  let data = buf.getChannelData(0);
+  data[0] = 0.5;
+  data[1] = 0.25;
+  let b1 = context.createBufferSource();
+  b1.buffer = buf;
+  b1.start();
+  let b2 = context.createBufferSource();
+  b2.buffer = buf;
+  b2.start();
+  let merger = context.createChannelMerger(2);
+  b1.connect(merger, 0, 0);
+  b2.connect(merger, 0, 1);
+  merger.connect(context.destination);
+  return context.startRendering();
+}
+promise_test(function() {
+  return render_audio_context()
+    .then(function(buffer) {
+      assert_equals(buffer.getChannelData(0)[0], 0.5);
+      assert_equals(buffer.getChannelData(1)[0], 0.5);
+      assert_equals(buffer.getChannelData(0)[1], 0.25);
+      assert_equals(buffer.getChannelData(1)[1], 0.25);
+    });
+}, "AudioBuffer can be reused between AudioBufferSourceNodes");
+</script>