import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

testing/web-platform/tests/webaudio/js/buffer-loader.js

@@ -0,0 +1,44 @@
+/* Taken from
+   https://raw.github.com/WebKit/webkit/master/LayoutTests/webaudio/resources/buffer-loader.js */
+
+function BufferLoader(context, urlList, callback) {
+  this.context = context;
+  this.urlList = urlList;
+  this.onload = callback;
+  this.bufferList = new Array();
+  this.loadCount = 0;
+}
+
+BufferLoader.prototype.loadBuffer = function(url, index) {
+  // Load buffer asynchronously
+  var request = new XMLHttpRequest();
+  request.open("GET", url, true);
+  request.responseType = "arraybuffer";
+
+  var loader = this;
+
+  request.onload = function() {
+    loader.context.decodeAudioData(request.response, decodeSuccessCallback, decodeErrorCallback);
+  };
+
+  request.onerror = function() {
+    alert('BufferLoader: XHR error');
+  };
+
+  var decodeSuccessCallback = function(buffer) {
+    loader.bufferList[index] = buffer;
+    if (++loader.loadCount == loader.urlList.length)
+      loader.onload(loader.bufferList);
+  };
+
+  var decodeErrorCallback = function() {
+    alert('decodeErrorCallback: decode error');
+  };
+
+  request.send();
+}
+
+BufferLoader.prototype.load = function() {
+  for (var i = 0; i < this.urlList.length; ++i)
+    this.loadBuffer(this.urlList[i], i);
+}

testing/web-platform/tests/webaudio/js/helpers.js

@@ -0,0 +1,33 @@
+function assert_array_approx_equals(actual, expected, epsilon, description)
+{
+  assert_true(actual.length === expected.length,
+              (description + ": lengths differ, expected " + expected.length + " got " + actual.length))
+
+  for (var i=0; i < actual.length; i++) {
+    assert_approx_equals(actual[i], expected[i], epsilon, (description + ": element " + i))
+  }
+}
+
+/*
+  Returns an array (typed or not), of the passed array with removed trailing and ending
+  zero-valued elements
+ */
+function trimEmptyElements(array) {
+  var start = 0;
+  var end = array.length;
+  
+  while (start < array.length) {
+    if (array[start] !== 0) {
+      break;
+    }
+    start++;
+  }
+
+  while (end > 0) {
+    end--;
+    if (array[end] !== 0) {
+      break;
+    }
+  }
+  return array.subarray(start, end);
+}

testing/web-platform/tests/webaudio/js/vendor-prefixes.js

@@ -0,0 +1,2 @@
+window.AudioContext = window.AudioContext || window.webkitAudioContext;
+window.OfflineAudioContext = window.OfflineAudioContext || window.webkitOfflineAudioContext;