[Telemetry] Fill in new specs

Complete test coverage for new scripts added to bundle
platform/telemetry in support of autoflow tabular views,
WTD-614. Specifically, these implement a telemetrySubscriber
service which can be used to watch for updates to telemetry
values associated with a specific domain object.

platform/telemetry/test/TelemetrySubscriberSpec.js

@@ -6,6 +6,48 @@ define(
         "use strict";
 
         describe("The telemetry subscriber", function () {
+            // TelemetrySubscriber just provides a factory
+            // for TelemetrySubscription, so most real testing
+            // should happen there.
+            var mockQ,
+                mockTimeout,
+                mockDomainObject,
+                mockCallback,
+                mockPromise,
+                subscriber;
+
+            beforeEach(function () {
+                mockQ = jasmine.createSpyObj("$q", ["when"]);
+                mockTimeout = jasmine.createSpy("$timeout");
+                mockDomainObject = jasmine.createSpyObj(
+                    "domainObject",
+                    [ "getCapability", "useCapability", "hasCapability" ]
+                );
+                mockCallback = jasmine.createSpy("callback");
+                mockPromise = jasmine.createSpyObj("promise", ["then"]);
+
+                mockQ.when.andReturn(mockPromise);
+                mockPromise.then.andReturn(mockPromise);
+
+                subscriber = new TelemetrySubscriber(mockQ, mockTimeout);
+            });
+
+            it("acts as a factory for subscription objects", function () {
+                var subscription = subscriber.subscribe(
+                    mockDomainObject,
+                    mockCallback
+                );
+                // Just verify that this looks like a TelemetrySubscription
+                [
+                    "unsubscribe",
+                    "getTelemetryObjects",
+                    "getRangeValue",
+                    "getDomainValue"
+                ].forEach(function (method) {
+                    expect(subscription[method])
+                        .toEqual(jasmine.any(Function));
+                });
+            });
 
         });
     }