Additional unit test for audit.js: failure cases and logging examples.

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

Index: third_party/WebKit/LayoutTests/webaudio/resources/audit.js
diff --git a/third_party/WebKit/LayoutTests/webaudio/resources/audit.js b/third_party/WebKit/LayoutTests/webaudio/resources/audit.js
index a366a807273f33ec20813b41ec68e489dffed80d..666dfceb104466260b499ed22dc2086acae64a5b 100644
--- a/third_party/WebKit/LayoutTests/webaudio/resources/audit.js
+++ b/third_party/WebKit/LayoutTests/webaudio/resources/audit.js
@@ -302,8 +302,8 @@ window.Audit = (function () {
         passDetail = '${actual} did not throw an exception.';
       } catch (error) {
         didThrowCorrectly = true;
-        failDetail = '${actual} threw ' + error.name + ': '
-            + error.message + '.';
+        failDetail = '${actual} *INCORRECTLY* threw ' + error.name + ': "'

[Raymond Toy, 2016/12/09 22:10:26]

Do these really need to be highlighted?  The "FAIL" at the beginning of the line
is enough of a hint that something failed. (Plus the gross assert_foo failed at
the end is a pretty big indicator of failure.)

[hongchan, 2016/12/19 22:14:05]

Then do we remove all the *HIGHLIGHT*? I felt PASS/FAIL at the end is not really
visible.

+            + error.message + '".';
       }
 
       return this._assert(!didThrowCorrectly, passDetail, failDetail);
@@ -614,7 +614,7 @@ window.Audit = (function () {
           passed,
           '${actual} contains all the expected values in the correct order: '
             + '${expected}.',
-          '${actual} contains an unexpected value of '
+          '${actual} contains an *UNEXPECTED* value of '
             + this._actual[indexActual] + ' at index ' + indexActual + '.');
     }
 
@@ -640,7 +640,7 @@ window.Audit = (function () {
         let diff = Math.abs(this._actual[index - 1] - this._actual[index]);
         if (diff >= this._expected) {
           passed = false;
-          failDetail = '${actual} has a glitch at index ' + index + ' of size '
+          failDetail = '${actual} has a *GLITCH* at index ' + index + ' of size '
             + diff + '.';
         }
       }
@@ -674,7 +674,7 @@ window.Audit = (function () {
       return this._assert(
         error <= this._options.threshold,
         '${actual} is ${expected} within an error of ${threshold}.',
-        '${actual} is not ${expected} within an error of ${threshold}: ' +
+        '${actual} is *NOT* ${expected} within an error of ${threshold}: ' +
           '${actual} with error of ${threshold}.');
     }
 
@@ -751,7 +751,7 @@ window.Audit = (function () {
       } else {
         // Failed. Prepare the detailed failure log.
         passed = false;
-        failDetail = '${actual} does not equal ${expected} with an '
+        failDetail = '${actual} does *NOT* equal ${expected} with an '
           + 'element-wise tolerance of ' + maxAllowedErrorDetail + '.\n';
 
         // Print out actual, expected, absolute error, and relative error.