Merge pull request #342 from terrystrachan/auth-effects-spec

test(auth): add unit tests for autheffects, closes #335

src/app/core/auth/auth.effects.spec.ts

@@ -0,0 +1,78 @@
+import { TestBed } from '@angular/core/testing';
+import { Router } from '@angular/router';
+import { LocalStorageService } from '@app/core';
+import { EffectsMetadata, getEffectsMetadata } from '@ngrx/effects';
+import { provideMockActions } from '@ngrx/effects/testing';
+import { Action } from '@ngrx/store';
+import { Observable } from 'rxjs';
+import { AuthEffects, AUTH_KEY } from './auth.effects';
+import { AuthState } from './auth.models';
+
+describe('AuthEffects', () => {
+  const actions$: Observable<Action> = null;
+  let authEffect: AuthEffects;
+  let metadata: EffectsMetadata<AuthEffects>;
+  let localStorageService: any;
+  let router: Router;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      providers: [
+        AuthEffects,
+        provideMockActions(() => actions$),
+        {
+          provide: LocalStorageService,
+          useValue: jasmine.createSpyObj('LocalStorageService', ['setItem'])
+        },
+        {
+          provide: Router,
+          useValue: jasmine.createSpyObj('Router', ['navigateByUrl'])
+        }
+      ]
+    });
+    localStorageService = TestBed.get(LocalStorageService);
+    authEffect = TestBed.get(AuthEffects);
+    router = TestBed.get(Router);
+  });
+
+  it('should be created', () => {
+    expect(authEffect).toBeTruthy();
+  });
+
+  it('login should not dispatch any action', () => {
+    metadata = getEffectsMetadata(authEffect);
+    expect(metadata.login).toEqual({ dispatch: false });
+  });
+
+  it('logout should not dispatch any action', () => {
+    metadata = getEffectsMetadata(authEffect);
+    expect(metadata.logout).toEqual({ dispatch: false });
+  });
+
+  it('should call setItem on LocalStorageService for login action', () => {
+    const loginState: AuthState = {
+      isAuthenticated: true
+    };
+
+    authEffect.login.subscribe(() => {
+      expect(localStorageService.setItem).toHaveBeenCalledWith(
+        AUTH_KEY,
+        loginState
+      );
+    });
+  });
+
+  it('should call setItem on LocalStorageService for logout action and navigate to about', () => {
+    const logoutState: AuthState = {
+      isAuthenticated: false
+    };
+
+    authEffect.logout.subscribe(() => {
+      expect(localStorageService.setItem).toHaveBeenCalledWith(
+        AUTH_KEY,
+        logoutState
+      );
+      expect(router.navigate).toHaveBeenCalledWith(['']);
+    });
+  });
+});