Test order is randomized

1 files changed, 16 insertions, 0 deletions

diff --git a/tests.js b/tests.js
index a04137f..bacaec0 100644
--- a/tests.js
+++ b/tests.js
@@ -56,6 +56,21 @@ function next() {
     }
 }
 
+/**
+ * Randomize array element order in-place.
+ * Using Durstenfeld shuffle algorithm.
+ * See http://stackoverflow.com/a/12646864
+ */
+function shuffle(array) {
+    for (var i = array.length - 1; i > 0; i--) {
+        var j = Math.floor(Math.random() * (i + 1));
+        var temp = array[i];
+        array[i] = array[j];
+        array[j] = temp;
+    }
+    return array;
+}
+
 tests = [
 
 // Page loads with status of 'success'
@@ -602,4 +617,5 @@ page.open(url, function(status) {
 ];
 
 console.log("Running tests...");
+tests = shuffle(tests);
 next();