[Indicators] Fill in specs

Fill in specs to ensure code coverage for scripts introduced
to support indicators as a category of extension. WTD-608.

platform/commonUI/general/test/BottomBarControllerSpec.js

@@ -7,7 +7,49 @@ define(
 
         describe("The bottom bar controller", function () {
             var testIndicators,
+                testIndicatorA,
+                testIndicatorB,
+                testIndicatorC,
+                mockIndicator,
                 controller;
+
+            beforeEach(function () {
+                mockIndicator = jasmine.createSpyObj(
+                    "indicator",
+                    [ "getGlyph", "getText" ]
+                );
+
+                testIndicatorA = {};
+                testIndicatorB = function () { return mockIndicator; };
+                testIndicatorC = { template: "someTemplate" };
+
+                testIndicators = [
+                    testIndicatorA,
+                    testIndicatorB,
+                    testIndicatorC
+                ];
+
+                controller = new BottomBarController(testIndicators);
+            });
+
+            it("exposes one indicator description per extension", function () {
+                expect(controller.getIndicators().length)
+                    .toEqual(testIndicators.length);
+            });
+
+            it("uses template field provided, or its own default", function () {
+                // "indicator" is the default;
+                // only testIndicatorC overrides this.
+                var indicators = controller.getIndicators();
+                expect(indicators[0].template).toEqual("indicator");
+                expect(indicators[1].template).toEqual("indicator");
+                expect(indicators[2].template).toEqual("someTemplate");
+            });
+
+            it("instantiates indicators given as constructors", function () {
+                // testIndicatorB constructs to mockIndicator
+                expect(controller.getIndicators()[1].ngModel).toBe(mockIndicator);
+            });
         });
     }
 );