Convert AudioBufferSource tests using Audit to testharness

third_party/WebKit/LayoutTests/webaudio/resources/audit-util.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 /**
  * @fileOverview  This file includes legacy utility functions for the layout
  *                test.
  */
 
@@ skipping 141 matching lines @@
 
         // The reference file is a 16-bit WAV file, so we will almost never get
         // an exact match between it and the actual floating-point result.
         if (Math.abs(diff) > scaleFactor)
             diffCount++;
     }
 
     var snr = 10 * Math.log10(signalPower / noisePower);
     var maxErrorULP = maxError * scaleFactor;
 
-    if (snr >= thresholdSNR) {
-        testPassed('Exceeded SNR threshold of ' + thresholdSNR + ' dB.');
-    } else {
-        testFailed('Expected SNR of ' + thresholdSNR + ' dB, but actual SNR is ' +
-        snr + ' dB.');
-    }
+    Should("SNR", snr).beGreaterThanOrEqualTo(thresholdSNR);
 
-    if (maxErrorULP <= thresholdDiffULP) {
-        testPassed('Maximum difference below threshold of ' +
-            thresholdDiffULP + ' ulp (' + bitDepth + '-bits).');
-    } else {
-        testFailed('Maximum difference of ' + maxErrorULP +
-            ' at the index ' + errorPosition + ' exceeded threshold of ' +
-            thresholdDiffULP + ' ulp (' + bitDepth + '-bits).');
-    }
+    Should('Maximum difference (in ulp units (' + bitDepth + '-bits))',
+      maxErrorULP).beLessThanOrEqualTo(thresholdDiffULP);
 
-    if (diffCount <= thresholdDiffCount) {
-        testPassed('Number of differences between results is ' +
-            diffCount + ' out of ' + actual.length + '.');
-    } else {
-        testFailed(diffCount + ' differences found but expected no more than ' +
-            diffCount + ' out of ' + actual.length + '.');
-    }
+    Should('Number of differences between results', diffCount)
+      .beLessThanOrEqualTo(thresholdDiffCount);
 }
 
 // Create an impulse in a buffer of length sampleFrameLength
 function createImpulseBuffer(context, sampleFrameLength) {
     var audioBuffer = context.createBuffer(1, sampleFrameLength, context.sampleRate);
     var n = audioBuffer.length;
     var dataL = audioBuffer.getChannelData(0);
 
     for (var k = 0; k < n; ++k) {
         dataL[k] = 0;
@@ skipping 71 matching lines @@
     var startFrame = timeToSampleFrame(grainOffset, sampleRate);
     var endFrame = timeToSampleFrame(grainOffset + duration, sampleRate);
 
     return endFrame - startFrame;
 }
 
 // True if the number is not an infinity or NaN
 function isValidNumber(x) {
     return !isNaN(x) && (x != Infinity) && (x != -Infinity);
 }