diff --git a/ext/src/shim/cast/classes/Session.js b/ext/src/shim/cast/classes/Session.js
index fd30632..f1bbc15 100755
--- a/ext/src/shim/cast/classes/Session.js
+++ b/ext/src/shim/cast/classes/Session.js
@@ -32,7 +32,7 @@ export default class Session {
         this._stopCallbacks = new Map();
 
         this.sessionId = sessionId;
-        this.transportId = sessionId;
+        this.transportId = sessionId || "";
         this.appId = appId;
         this.appImages = appImages;
         this.displayName = displayName;
@@ -41,16 +41,17 @@ export default class Session {
         this.media = [];
         this.namespaces = [];
         this.senderApps = [];
-        this.status = SessionStatus.DISCONNECTED;
+        this.status = SessionStatus.CONNECTED;
         this.statusText = null;
 
-        this._sendMessage("bridge:bridgesession/initialize", {
-            address: receiver._address
-          , port: receiver._port
-          , appId
-          , sessionId
-        });
-
+        if (receiver) {        
+            this._sendMessage("bridge:bridgesession/initialize", {
+                address: receiver._address
+              , port: receiver._port
+              , appId
+              , sessionId
+            });
+        }
 
         onMessage(message => {
             // Filter other session messages
diff --git a/ext/src/shim/cast/classes/SessionRequest.js b/ext/src/shim/cast/classes/SessionRequest.js
index 69cc3eb..f9ce68b 100755
--- a/ext/src/shim/cast/classes/SessionRequest.js
+++ b/ext/src/shim/cast/classes/SessionRequest.js
@@ -1,20 +1,21 @@
-"use strict";
-
-import { Capability } from "../enums";
-import { requestSession as requestSessionTimeout } from "../../timeout.js";
-
-// https://developers.google.com/cast/docs/reference/chrome/chrome.cast.SessionRequest
-export default class SessionRequest {
-    constructor (
-            appId
-          , opt_capabilities = [
-                Capability.VIDEO_OUT
-              , Capability.AUDIO_OUT ]
-          , opt_timeout = null) {
-
-        this.appId = appId;
-        this.capabilities = opt_capabilities;
-        this.language = null;
-        this.requestSessionTimeout = requestSessionTimeout;
-    }
-};
+"use strict";
+
+import { Capability } from "../enums";
+import { requestSession as requestSessionTimeout } from "../../timeout.js";
+
+// https://developers.google.com/cast/docs/reference/chrome/chrome.cast.SessionRequest
+export default class SessionRequest {
+    constructor (
+            appId
+          , opt_capabilities = [
+                Capability.VIDEO_OUT
+              , Capability.AUDIO_OUT ]
+          , opt_timeout = requestSessionTimeout) {
+
+        this.appId = appId;
+        this.capabilities = opt_capabilities;
+        this.dialRequest = null;
+        this.language = null;
+        this.requestSessionTimeout = opt_timeout;
+    }
+};
diff --git a/test/spec/shim/cast/ReceiverDisplayStatus.spec.js b/test/spec/shim/cast/ReceiverDisplayStatus.spec.js
index 93efd0f..125bff5 100644
--- a/test/spec/shim/cast/ReceiverDisplayStatus.spec.js
+++ b/test/spec/shim/cast/ReceiverDisplayStatus.spec.js
@@ -1,6 +1,6 @@
 "use strict";
 
-describe("chrome.cast.Receiver", () => {
+describe("chrome.cast.ReceiverDisplayStatus", () => {
     it("should have all properties", async () => {
         const receiverDisplayStatus =
                 new chrome.cast.ReceiverDisplayStatus();
diff --git a/test/spec/shim/cast/SenderApplication.spec.js b/test/spec/shim/cast/SenderApplication.spec.js
index e69de29..efe8ef8 100644
--- a/test/spec/shim/cast/SenderApplication.spec.js
+++ b/test/spec/shim/cast/SenderApplication.spec.js
@@ -0,0 +1,18 @@
+"use strict";
+
+describe("chrome.cast.SenderApplication", () => {
+    it("should have all properties", async () => {
+        const senderApplication = new chrome.cast.SenderApplication();
+
+        expect(senderApplication.platform).toBe(undefined);
+        expect(senderApplication.url).toBe(null);
+        expect(senderApplication.packageId).toBe(null);
+    });
+
+    it("should have expected assigned properties", async () => {
+        const senderApplication = new chrome.cast.SenderApplication(
+                chrome.cast.SenderPlatform.CHROME);
+
+        expect(senderApplication.platform).toBe("chrome");
+    });
+});
diff --git a/test/spec/shim/cast/Session.spec.js b/test/spec/shim/cast/Session.spec.js
index e69de29..2cdf9e8 100644
--- a/test/spec/shim/cast/Session.spec.js
+++ b/test/spec/shim/cast/Session.spec.js
@@ -0,0 +1,36 @@
+"use strict";
+
+describe("chrome.cast.Session", () => {
+    it("should have all properties", async () => {
+        const session = new chrome.cast.Session();
+
+        expect(session.appId).toBe(undefined);
+        expect(session.appImages).toBe(undefined);
+        expect(session.displayName).toBe(undefined);
+        expect(session.media).toEqual([]);
+        expect(session.namespaces).toEqual([]);
+        expect(session.receiver).toBe(undefined);
+        expect(session.senderApps).toEqual([]);
+        expect(session.sessionId).toBe(undefined);
+        expect(session.status).toBe("connected");
+        expect(session.statusText).toBe(null);
+        expect(session.transportId).toBe("");
+    });
+
+    it("should have expected assigned properties", async () => {
+        const session = new chrome.cast.Session(
+                "__sessionId"
+              , "__appId"
+              , "__displayName"
+              , [ new chrome.cast.Image("http://example.com") ]
+              , new chrome.cast.Receiver("__label", "__friendlyName"));
+
+        expect(session.appId).toBe("__appId");
+        expect(session.appImages).toEqual(jasmine.arrayContaining([
+            jasmine.objectContaining({ url: "http://example.com" })
+        ]));
+        expect(session.displayName).toBe("__displayName");
+        expect(session.receiver).toEqual(jasmine.any(chrome.cast.Receiver));
+        expect(session.sessionId).toBe("__sessionId");
+    });
+});
diff --git a/test/spec/shim/cast/SessionRequest.spec.js b/test/spec/shim/cast/SessionRequest.spec.js
index e69de29..af41ff4 100644
--- a/test/spec/shim/cast/SessionRequest.spec.js
+++ b/test/spec/shim/cast/SessionRequest.spec.js
@@ -0,0 +1,25 @@
+"use strict";
+
+describe("chrome.cast.SessionRequest", () => {
+    it("should have all properties", async () => {
+        const sessionRequest = new chrome.cast.SessionRequest();
+
+        expect(sessionRequest.appId).toBe(undefined);
+        expect(sessionRequest.capabilities).toEqual([ "video_out", "audio_out" ]);
+        expect(sessionRequest.dialRequest).toBe(null);
+        expect(sessionRequest.language).toBe(null);
+        expect(sessionRequest.requestSessionTimeout).toBe(60000);
+    });
+
+    it("should have expected assigned properties", async () => {
+        const sessionRequest = new chrome.cast.SessionRequest(
+                "__appId"
+              , [ chrome.cast.Capability.VIDEO_OUT
+                , chrome.cast.Capability.AUDIO_IN ]
+              , 5000);
+
+        expect(sessionRequest.appId).toBe("__appId");
+        expect(sessionRequest.capabilities).toEqual([ "video_out", "audio_in" ]);
+        expect(sessionRequest.requestSessionTimeout).toBe(5000);
+    });
+});
diff --git a/test/spec/shim/cast/Timeout.spec.js b/test/spec/shim/cast/Timeout.spec.js
index e69de29..b449c6c 100644
--- a/test/spec/shim/cast/Timeout.spec.js
+++ b/test/spec/shim/cast/Timeout.spec.js
@@ -0,0 +1,13 @@
+"use strict";
+
+describe("chrome.cast.Timeout", () => {
+    it("should have all properties", async () => {
+        const timeout = new chrome.cast.Timeout();
+
+        expect(timeout.leaveSession).toBe(3000);
+        expect(timeout.requestSession).toBe(60000);
+        expect(timeout.sendCustomMessage).toBe(3000);
+        expect(timeout.setReceiverVolume).toBe(3000);
+        expect(timeout.stopSession).toBe(3000);
+    });
+});
diff --git a/test/spec/shim/cast/Volume.spec.js b/test/spec/shim/cast/Volume.spec.js
index e69de29..e0b4eb1 100644
--- a/test/spec/shim/cast/Volume.spec.js
+++ b/test/spec/shim/cast/Volume.spec.js
@@ -0,0 +1,17 @@
+"use strict";
+
+describe("chrome.cast.Volume", () => {
+    it("should have all properties", async () => {
+        const volume = new chrome.cast.Volume();
+
+        expect(volume.level).toBe(null);
+        expect(volume.muted).toBe(null);
+    });
+
+    it("should have expected assigned properties", async () => {
+        const volume = new chrome.cast.Volume(0.5, false);
+
+        expect(volume.level).toBe(0.5);
+        expect(volume.muted).toBe(false);
+    });
+});