Fix nativeMethods.performanceNow in IE9 (closes #670) (#671)

* fix nativeMethods.performanceNow in IE9 (closes #670) * Bump version * small test refactoring
DevExpress · Jul 8, 2016 · a81c7cc · a81c7cc
1 parent 6de3e57
commit a81c7cc
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Showing 3 changed files with 12 additions and 2 deletions.
diff --git a/package.json b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "testcafe-hammerhead",
   "description": "A powerful web-proxy used as a core for the TestCafe testing framework (https://github.com/DevExpress/testcafe).",
-  "version": "9.3.0",
+  "version": "9.3.1",
   "homepage": "https://github.com/DevExpress/testcafe-hammerhead",
   "bugs": {
     "url": "https://github.com/DevExpress/testcafe-hammerhead/issues"

diff --git a/src/client/sandbox/native-methods.js b/src/client/sandbox/native-methods.js
@@ -122,7 +122,8 @@ class NativeMethods {
             var nativePerformance    = win.performance;
             var nativePerformanceNow = win.performance.now || win.Performance.prototype.now;
 
-            this.performanceNow = (...args) => nativePerformanceNow.apply(nativePerformance, args);
+            if (nativePerformanceNow)
+                this.performanceNow = (...args) => nativePerformanceNow.apply(nativePerformance, args);
         }
 
         // Fetch

diff --git a/test/client/fixtures/sandbox/native-methods-test.js b/test/client/fixtures/sandbox/native-methods-test.js
@@ -0,0 +1,9 @@
+var nativeMethods = hammerhead.nativeMethods;
+
+if (nativeMethods.performanceNow) {
+    test('performanceNow', function () {
+        var now = nativeMethods.performanceNow();
+
+        ok(!isNaN(parseFloat(now)));
+    });
+}