Unit test authentication

ref #17

demo-shell-ng2/app/services/authentication.spec.ts

@@ -0,0 +1,101 @@
+import {
+    it,
+    inject,
+    injectAsync,
+    describe,
+    beforeEachProviders,
+    TestComponentBuilder
+} from 'angular2/testing';
+
+import {provide, Injector} from 'angular2/core';
+import {Http, HTTP_PROVIDERS, XHRBackend, Response, ResponseOptions} from 'angular2/http';
+import {MockBackend} from 'angular2/http/testing';
+
+import {Authentication} from "app/services/authentication";
+
+describe('Authentication', () => {
+    let injector,
+        backend,
+        mockBackend,
+        httpService,
+        service;
+
+    beforeEach(() => {
+        injector = Injector.resolveAndCreate([
+            HTTP_PROVIDERS,
+            // this next value should NOT be provided, but when it is,
+            // we lose the ability to correlate the backend calls
+            // to the test Is there a way to detect this has been
+            // done and reject it out-of-hand?
+            MockBackend,  // this is clearly wrong...
+            provide(XHRBackend, {useClass: MockBackend}),
+            Authentication
+        ]);
+
+        var store = {};
+
+        spyOn(localStorage, 'getItem').and.callFake(function (key) {
+            return store[key];
+        });
+        spyOn(localStorage, 'setItem').and.callFake(function (key, value) {
+            return store[key] = value + '';
+        });
+        spyOn(localStorage, 'clear').and.callFake(function () {
+            store = {};
+        });
+        spyOn(localStorage, 'removeItem').and.callFake(function (key) {
+            delete store[key];
+        });
+        spyOn(localStorage, 'key').and.callFake(function (i) {
+            var keys = Object.keys(store);
+            return keys[i] || null;
+        });
+
+        mockBackend = injector.get(MockBackend);
+        backend = injector.get(XHRBackend);
+        httpService = injector.get(Http);
+        service = injector.get(Authentication);
+    });
+
+    it('should return true and token if the user is logged in', () => {
+        service.saveJwt('fake-local-token');
+        expect(service.isLoggedIn()).toBe(true);
+        expect(localStorage.getItem('token')).toBeDefined();
+        expect(localStorage.getItem('token')).toEqual('fake-local-token');
+    });
+
+    it('should return false and token undefined if the user is not logged in', () => {
+        expect(service.isLoggedIn()).toEqual(false);
+        expect(localStorage.getItem('token')).not.toBeDefined();
+
+    });
+
+    it('should return true and token on sign in', () => {
+        backend.connections.subscribe(connection => {
+            connection.mockRespond(new Response(new ResponseOptions({body: { data: { ticket: 'fake-post-token'}}})));
+        });
+        service.token = '';
+        service.login('POST', 'fakeUser', 'fakePassword')
+            .subscribe( () => {
+                expect(service.isLoggedIn()).toBe(true);
+                expect(service.token).toEqual('fake-post-token');
+                expect(localStorage.getItem('token')).toBeDefined();
+                expect(localStorage.getItem('token')).toEqual('fake-post-token');
+            }
+        );
+    });
+
+    it('should return false and token undefined on log out', () => {
+        service.token = 'fake-token';
+        localStorage.setItem('token','fake-token');
+        service.logout()
+            .subscribe( () => {
+                expect(service.isLoggedIn()).toBe(false);
+                expect(service.token).not.toBeDefined();
+                expect(localStorage.getItem('token')).not.toBeDefined();
+            }
+        );
+    });
+
+});
+