[Representation] Spec for gesture provider

Add spec for GestureProvider, introduced to separate out the
attachment of gestures from the creation of representations.
WTD-521.

platform/representation/src/gestures/GestureProvider.js

@@ -15,12 +15,10 @@ define(
         function GestureProvider(gestures) {
             var gestureMap = {};
 
-            function releaseGestures(gestures) {
-                gestures.forEach(function (gesture) {
-                    if (gesture && gesture.destroy) {
-                        gesture.destroy();
-                    }
-                });
+            function releaseGesture(gesture) {
+                if (gesture && gesture.destroy) {
+                    gesture.destroy();
+                }
             }
 
             function attachGestures(element, domainObject, gestureKeys) {
@@ -36,7 +34,7 @@ define(
 
                 return {
                     destroy: function () {
-                        releaseGestures(attachedGestures);
+                        attachedGestures.forEach(releaseGesture);
                     }
                 };
             }

platform/representation/test/gestures/GestureProviderSpec.js

@@ -0,0 +1,70 @@
+/*global define,Promise,describe,it,expect,beforeEach,waitsFor,jasmine*/
+
+/**
+ * GestureProviderSpec. Created by vwoeltje on 11/6/14.
+ */
+define(
+    ["../../src/gestures/GestureProvider"],
+    function (GestureProvider) {
+        "use strict";
+
+        var JQLITE_FUNCTIONS = [ "on", "off", "attr", "removeAttr" ],
+            GESTURE_KEYS = ["a", "b", "c", "d", "e"],
+            DOMAIN_OBJECT_METHODS = [ "getId", "getModel", "getCapability", "hasCapability", "useCapability"];
+
+        describe("The gesture provider", function () {
+            var mockGestures,
+                mockDestroys,
+                mockElement,
+                mockDomainObject,
+                provider;
+
+            beforeEach(function () {
+                mockElement = jasmine.createSpyObj("element", JQLITE_FUNCTIONS);
+                mockDomainObject = jasmine.createSpyObj("domainObject", DOMAIN_OBJECT_METHODS);
+
+                mockDestroys = {};
+                mockGestures = {};
+                GESTURE_KEYS.forEach(function (key) {
+                    mockDestroys[key] = jasmine.createSpy("destroy-" + key);
+                    mockGestures[key] = jasmine.createSpy("gesture-" + key);
+                    mockGestures[key].andReturn({ destroy: mockDestroys[key] });
+                    mockGestures[key].key = key;
+                });
+
+                provider = new GestureProvider(GESTURE_KEYS.map(function (key) {
+                    return mockGestures[key];
+                }));
+            });
+
+            it("attaches matching to an element", function () {
+                provider.attachGestures(mockElement, mockDomainObject, ["a", "c", "e"]);
+
+                expect(mockGestures.a).toHaveBeenCalledWith(mockElement, mockDomainObject);
+                expect(mockGestures.c).toHaveBeenCalledWith(mockElement, mockDomainObject);
+                expect(mockGestures.e).toHaveBeenCalledWith(mockElement, mockDomainObject);
+                expect(mockGestures.b).not.toHaveBeenCalled();
+                expect(mockGestures.d).not.toHaveBeenCalled();
+
+                // No destroys should have been called - let's check
+                GESTURE_KEYS.forEach(function (key) {
+                    expect(mockDestroys[key]).not.toHaveBeenCalled();
+                });
+            });
+
+            it("detaches gestures on request", function () {
+                provider.attachGestures(
+                    mockElement,
+                    mockDomainObject,
+                    ["b", "d", "e"]
+                ).destroy();
+
+                expect(mockDestroys.b).toHaveBeenCalled();
+                expect(mockDestroys.d).toHaveBeenCalled();
+                expect(mockDestroys.e).toHaveBeenCalled();
+                expect(mockDestroys.a).not.toHaveBeenCalled();
+                expect(mockDestroys.c).not.toHaveBeenCalled();
+            });
+        });
+    }
+);

platform/representation/test/suite.json

@@ -2,6 +2,7 @@
     "gestures/ContextMenuGesture",
     "gestures/DragGesture",
     "gestures/DropGesture",
+    "gestures/GestureProvider",
     "MCTInclude",
     "MCTRepresentation"
 ]