--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core-javascript/javascript-exercises/testtools.js	Wed Nov 09 17:29:18 2011 +0000
@@ -0,0 +1,39 @@
+var telltail = 'global';
+var _assertion_count = 0;
+
+// Define a global function 'log'.
+var log;
+if (this.hasOwnProperty('jsArguments')){
+
+    log = function(s){
+        print(s + '\n');
+    };
+} else {
+    log = print;
+}
+
+//
+var TEST = function(title, code){
+
+    var x;
+
+    log( 'Testing: ' + title );
+    _assertion_count = 0;
+
+    try {
+        code();
+    } catch (x) {
+        log('! Exception at ' + x.fileName +':' + x.lineNumber);
+        log('! [' + x.name + '] '  + x.message );
+    }
+
+};
+
+var assert = function(arg){
+    _assertion_count += 1;
+    if (!arg){
+        var msg = '! assert ' + _assertion_count + ' has failed';
+        log(msg);
+    }
+};
+