solved task 2

jasmine_demo/spec/helpers/jasmine_examples/SpecHelper.js

@@ -0,0 +1,15 @@
+beforeEach(function () {
+  jasmine.addMatchers({
+    toBePlaying: function () {
+      return {
+        compare: function (actual, expected) {
+          var player = actual;
+
+          return {
+            pass: player.currentlyPlayingSong === expected && player.isPlaying
+          }
+        }
+      };
+    }
+  });
+});