MOBILE-3320 tests: Fix tests

src/app/classes/singletons-factory.ts

@@ -27,7 +27,10 @@ export type CoreInjectionToken<Service> = Type<Service> | Type<unknown> | string
 /**
  * Singleton class created using the factory.
  */
-export type CoreSingletonClass<Service> = typeof CoreSingleton & { instance: Service };
+export type CoreSingletonClass<Service> = typeof CoreSingleton & {
+    instance: Service;
+    setInstance(instance: Service): void;
+};
 
 /**
  * Factory used to create CoreSingleton classes that get instances from an injector.
@@ -71,6 +74,10 @@ export class CoreSingletonsFactory {
                 return this.serviceInstance;
             }
 
+            static setInstance(instance: Service): void {
+                this.serviceInstance = instance;
+            }
+
         };
     }
 }

src/app/core/login/tests/init.page.test.ts

@@ -12,13 +12,24 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { createComponent, prepareComponentTest } from '@/tests/utils';
-
+import { CoreInit } from '@services/init';
 import { CoreLoginInitPage } from '@core/login/pages/init/init.page';
+import { CoreApp } from '@/app/services/app';
+
+import { createComponent, preparePageTest, PageTestMocks, mockSingleton } from '@/tests/utils';
 
 describe('CoreLogin Init Page', () => {
 
-    beforeEach(() => prepareComponentTest(CoreLoginInitPage));
+    let mocks: PageTestMocks;
+
+    beforeEach(async () => {
+        const initPromise = Promise.resolve();
+
+        mockSingleton(CoreInit, [], { ready: () => initPromise });
+        mockSingleton(CoreApp, [], { getRedirect: () => ({}) });
+
+        mocks = await preparePageTest(CoreLoginInitPage);
+    });
 
     it('should render', () => {
         const fixture = createComponent(CoreLoginInitPage);
@@ -27,4 +38,13 @@ describe('CoreLogin Init Page', () => {
         expect(fixture.nativeElement.querySelector('ion-spinner')).toBeTruthy();
     });
 
+    it('navigates to site page after loading', async () => {
+        const fixture = createComponent(CoreLoginInitPage);
+
+        fixture.componentInstance.ngOnInit();
+        await CoreInit.instance.ready();
+
+        expect(mocks.router.navigate).toHaveBeenCalledWith(['/login/site']);
+    });
+
 });

src/tests/utils.ts

@@ -14,15 +14,61 @@
 
 import { CUSTOM_ELEMENTS_SCHEMA, Type } from '@angular/core';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
-import { Component } from '@angular/compiler/src/core';
+import { Router } from '@angular/router';
+import { CoreSingletonClass } from '@app/classes/singletons-factory';
 
-export async function prepareComponentTest(component: Type<Component>): Promise<void> {
+export interface ComponentTestMocks {
+    //
+};
+
+export interface PageTestMocks extends ComponentTestMocks {
+    router: Router;
+}
+
+export function createMock<T>(methods: string[] = [], properties: Record<string, unknown> = {}): T {
+    const mockObject = properties;
+
+    for (const method of methods) {
+        mockObject[method] = jest.fn();
+    }
+
+    return mockObject as T;
+}
+
+export function mockSingleton(
+    singletonClass: CoreSingletonClass<unknown>,
+    methods: string[] = [],
+    properties: Record<string, unknown> = {},
+): void {
+    singletonClass.setInstance(createMock(methods, properties));
+}
+
+export async function prepareComponentTest<T>(component: Type<T>, providers: unknown[] = []): Promise<ComponentTestMocks> {
     TestBed.configureTestingModule({
         declarations: [component],
         schemas: [CUSTOM_ELEMENTS_SCHEMA],
+        providers,
     });
 
     await TestBed.compileComponents();
+
+    return {};
+}
+
+export async function preparePageTest<T>(component: Type<T>, providers: unknown[] = []): Promise<PageTestMocks> {
+    const mocks = {
+        router: createMock<Router>(['navigate']),
+    };
+
+    const componentTestMocks = await prepareComponentTest(component, [
+        ...providers,
+        { provide: Router, useValue: mocks.router },
+    ]);
+
+    return {
+        ...componentTestMocks,
+        ...mocks,
+    };
 }
 
 export function createComponent<T>(component: Type<T>): ComponentFixture<T> {

tsconfig.test.json

@@ -1,7 +1,9 @@
 {
   "extends": "./tsconfig.json",
   "compilerOptions": {
+    "allowJs": true,
     "esModuleInterop": true,
+    "emitDecoratorMetadata": true,
     "outDir": "./out-tsc/tests",
     "types": [
       "jest",