refactored AvatarService

static/js/services/avatar/avatar.service.impl.spec.ts

@@ -0,0 +1,97 @@
+import { AvatarServiceImpl } from './avatar.service.impl';
+
+
+describe("AvatarServiceImpl", () => {
+  var avatarServiceImpl: AvatarServiceImpl;
+  var configMock: any;
+  var md5Mock: any;
+
+  beforeEach(() => {
+    configMock = {AVATAR_KIND: 'local'};
+    md5Mock = jasmine.createSpyObj('md5Mock', ['createHash']);
+    avatarServiceImpl = new AvatarServiceImpl(configMock, md5Mock);
+  });
+
+  describe("getAvatar", () => {
+    var hash: string;
+
+    beforeEach(() => {
+      hash = "a1b2c3d4e5f6";
+    });
+
+    it("returns a local avatar URL if given config has avatar kind set to local", () => {
+      var avatarURL: string = avatarServiceImpl.getAvatar(hash);
+
+      expect(avatarURL).toEqual(`/avatar/${hash}?size=16`);
+    });
+
+    it("returns a Gravatar URL if given config has avatar kind set to Gravatar", () => {
+      configMock['AVATAR_KIND'] = 'gravatar';
+      var avatarURL: string = avatarServiceImpl.getAvatar(hash);
+
+      expect(avatarURL).toEqual(`//www.gravatar.com/avatar/${hash}?d=404&size=16`);
+    });
+
+    it("uses 16 as default size query parameter if not provided", () => {
+      var size: number = 16;
+      var avatarURL: string = avatarServiceImpl.getAvatar(hash);
+
+      expect(avatarURL).toEqual(`/avatar/${hash}?size=${size}`);
+    });
+
+    it("uses 404 as default not found query parameter for Gravatar URL if not provided", () => {
+      configMock['AVATAR_KIND'] = 'gravatar';
+      var notFound: string = '404';
+      var avatarURL: string = avatarServiceImpl.getAvatar(hash);
+
+      expect(avatarURL).toEqual(`//www.gravatar.com/avatar/${hash}?d=${notFound}&size=16`);
+    });
+  });
+
+  describe("computeHash", () => {
+    var email: string;
+    var name: string;
+    var expectedHash: string;
+
+    beforeEach(() => {
+      email = "some_example@gmail.com";
+      name = "example";
+      expectedHash = "a1b2c3d4e5f6";
+      md5Mock.createHash = jasmine.createSpy('createHashSpy').and.returnValue(expectedHash);
+    });
+
+    it("returns hash from cache if it exists", () => {
+      // Call once to set the cache
+      avatarServiceImpl.computeHash(email, name);
+      md5Mock.createHash.calls.reset();
+      avatarServiceImpl.computeHash(email, name);
+
+      expect(md5Mock.createHash).not.toHaveBeenCalled();
+    });
+
+    it("calls MD5 service to create hash using given email if cache is not set", () => {
+      avatarServiceImpl.computeHash(email, name);
+
+      expect(md5Mock.createHash.calls.argsFor(0)[0]).toEqual(email.toString().toLowerCase());
+    });
+
+    it("adds first character of given name to hash if config has avatar kind set to local", () => {
+      var hash: string = avatarServiceImpl.computeHash(email, name);
+
+      expect(hash[0]).toEqual(name[0]);
+    });
+
+    it("adds first character of given email to hash if config has avatar kind set to local and not given name", () => {
+      var hash: string = avatarServiceImpl.computeHash(email);
+
+      expect(hash[0]).toEqual(email[0]);
+    });
+
+    it("adds nothing to hash if config avatar kind is not set to local", () => {
+      configMock['AVATAR_KIND'] = 'gravatar';
+      var hash: string = avatarServiceImpl.computeHash(email);
+
+      expect(hash).toEqual(expectedHash);
+    });
+  });
+});