Implement blank file tests + fix shim

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);
+    });
+});