diff --git a/jasmine-async-await/unit-tests/js-3.6.0/SpecRunner.html b/jasmine-async-await/unit-tests/js-3.6.0/SpecRunner.html
index 6cd70b6..24d9731 100644
--- a/jasmine-async-await/unit-tests/js-3.6.0/SpecRunner.html
+++ b/jasmine-async-await/unit-tests/js-3.6.0/SpecRunner.html
@@ -19,8 +19,9 @@
   <!-- include spec files here... -->
   <!--script src="spec/SpecHelper.js"></script>
   <script src="spec/PlayerSpec.js"></script-->
-  <script src="spec/sampleSpec.js"></script>
-  <script src="spec/PromisesAndCallbacksSpec.js"></script>
+  <!--script src="spec/sampleSpec.js"></script>
+  <script src="spec/PromisesAndCallbacksSpec.js"></script-->
+  <script src="spec/MockClockSpec.js"></script>
 
 </head>
 
diff --git a/jasmine-async-await/unit-tests/js-3.6.0/spec/MockClockSpec.js b/jasmine-async-await/unit-tests/js-3.6.0/spec/MockClockSpec.js
new file mode 100755
index 0000000..64e6fd5
--- /dev/null
+++ b/jasmine-async-await/unit-tests/js-3.6.0/spec/MockClockSpec.js
@@ -0,0 +1,27 @@
+describe('debounced test', function(){
+
+	beforeEach(function(){
+		jasmine.clock().install();
+	});
+
+	afterEach(function(){
+		jasmine.clock().uninstall();
+	});
+
+	it('should call the method only after the 500ms debounce', function(){
+		function debouncedMethod() {
+			// do something async;
+		}
+
+		function evaluateResults() {
+			// check results of async function
+		}
+		debouncedMethod();
+
+		jasmine.clock().tick(501); //increment clock 501 ms.
+
+		evaluateResults();
+
+		//assertions follow
+	});
+});
\ No newline at end of file
diff --git a/jasmine-async-await/unit-tests/js-3.6.0/spec/PromisesAndCallbacksSpec.js b/jasmine-async-await/unit-tests/js-3.6.0/spec/PromisesAndCallbacksSpec.js
index b487acf..909198b 100755
--- a/jasmine-async-await/unit-tests/js-3.6.0/spec/PromisesAndCallbacksSpec.js
+++ b/jasmine-async-await/unit-tests/js-3.6.0/spec/PromisesAndCallbacksSpec.js
@@ -99,7 +99,7 @@ describe('Promise', () => {
 
   it('you must return a rejected promise if you want to execute the next fail callback', (done) => {
     function someApiCall() {
-      return Promise.reject('Error');
+      return Promise.reject('Backend System is down');
     }
 
     someApiCall()