Convert AudioBufferSource start and loop-comprehensive tests to testharness

third_party/WebKit/LayoutTests/webaudio/resources/audiobuffersource-testing.js

Index: third_party/WebKit/LayoutTests/webaudio/resources/audiobuffersource-testing.js
diff --git a/third_party/WebKit/LayoutTests/webaudio/resources/audiobuffersource-testing.js b/third_party/WebKit/LayoutTests/webaudio/resources/audiobuffersource-testing.js
index dd48ac0c95b1431f838961406810e53c9b5b384f..5bf64a128da087b71d1e1342b92564f0a7f7d5ec 100644
--- a/third_party/WebKit/LayoutTests/webaudio/resources/audiobuffersource-testing.js
+++ b/third_party/WebKit/LayoutTests/webaudio/resources/audiobuffersource-testing.js
@@ -9,13 +9,12 @@ function createTestBuffer(context, sampleFrameLength) {
     return audioBuffer;
 }
 
-function checkSingleTest(renderedBuffer, i) {
+function checkSingleTest(renderedBuffer, i, should) {
     var renderedData = renderedBuffer.getChannelData(0);
     var offsetFrame = i * testSpacingFrames;
 
     var test = tests[i];
     var expected = test.expected;
-    var success = true;
     var description;
 
     if (test.description) {
@@ -37,47 +36,21 @@ function checkSingleTest(renderedBuffer, i) {
         framesToTest = test.durationFrames;
 
     // Verify that the output matches
-    for (var j = 0; j < framesToTest; ++j) {
-        if (expected[j] != renderedData[offsetFrame + j]) {
-            // Copy from Float32Array to regular JavaScript array for error message.
-            var renderedArray = new Array();
-            for (var j = 0; j < test.renderFrames; ++j)
-                renderedArray[j] = renderedData[offsetFrame + j];
-
-            var s = description + ": expected: " + expected + " actual: " + renderedArray;
-            success = false;
-            Should(s, success).beEqualTo(true);
-            break;
-        }
-    }
+    var prefix = "Case " + i + ": ";
+    should(renderedData.slice(offsetFrame, offsetFrame + framesToTest),
+        prefix + description)
+      .beEqualToArray(expected);
 
     // Verify that we get all zeroes after the buffer (or duration) has passed.
-    for (var j = framesToTest; j < testSpacingFrames; ++j) {
-        if (renderedData[offsetFrame + j]) {
-            // Copy from Float32Array to regular JavaScript array for error message.
-            var renderedArray = new Array();
-            for (var j = framesToTest; j < testSpacingFrames; ++j)
-                renderedArray[j - framesToTest] = renderedData[offsetFrame + j];
-
-            var s = description + ": expected: all zeroes actual: " + renderedArray;
-            success = false;
-            Should(s, success).beEqualTo(true);
-            break;
-        }
-    }
-
-    Should("", success)
-        .summarize(description, description);
-
-    return success;
+    should(renderedData.slice(offsetFrame + framesToTest, offsetFrame +
+          testSpacingFrames),
+        prefix + description + ": tail")
+      .beConstantValueOf(0);
 }
 
-function checkAllTests(event) {
-    var renderedBuffer = event.renderedBuffer;
+function checkAllTests(renderedBuffer, should) {
     for (var i = 0; i < tests.length; ++i)
-        checkSingleTest(renderedBuffer, i);
-
-    finishJSTest();
+      checkSingleTest(renderedBuffer, i, should);
 }