add unit tests

src/test/js/media_manager.test.js

@@ -495,6 +495,67 @@ describe("MediaManager", function () {
     });
 
      */
+
+    it("should handle null onEndedCallback gracefully", async function () {
+
+      var adaptor = new WebRTCAdaptor({
+        websocketURL: "ws://localhost",
+        mediaConstraints: {
+          video: "dummy",
+          audio: "dummy"
+        },
+        initializeComponents: false
+      });
+
+      var mediaManager = new MediaManager({
+        userParameters: {
+          mediaConstraints: {
+            video: false,
+            audio: true,
+          }
+        },
+        webRTCAdaptor: adaptor,
+
+        callback: (info, obj) => {
+          adaptor.notifyEventListeners(info, obj)
+        },
+        callbackError: (error, message) => {
+          adaptor.notifyErrorEventListeners(error, message)
+        },
+        getSender: (streamId, type) => {
+          return adaptor.getSender(streamId, type)
+        },
+      });
+
+      adaptor.mediaManager = mediaManager;
+
+      await adaptor.initialize();
+
+      // Create a mock video track
+      const mockVideoTrack = {
+        kind: "video",
+        enabled: true,
+        stop: sinon.fake(), // Mock the `stop` method
+        addEventListener: sinon.fake(),
+        removeEventListener: sinon.fake(),
+        onended: sinon.fake(),
+      };
+
+      // Create a desktop stream
+      const stream = new MediaStream();
+
+      // Create a fake `MediaStream` and add the mock video track
+      const cameraStream = new MediaStream();
+      cameraStream.getVideoTracks = () => [mockVideoTrack]; // Override `getVideoTracks`
+
+      sinon.stub(navigator.mediaDevices, 'getUserMedia').resolves(cameraStream);
+
+      await mediaManager.setDesktopwithCameraSource(stream, "streamId", null);
+
+      expect(mediaManager.desktopStream).to.equal(stream);
+      expect(mediaManager.smallVideoTrack).to.equal(mockVideoTrack);
+      navigator.mediaDevices.getUserMedia.restore();
+    });
   });
 
 });