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How to use TOKEN_EXISTING method in ng-mocks

Best JavaScript code snippet using ng-mocks

test.spec.ts

Source:test.spec.ts

1import { Injectable, InjectionToken, NgModule } from '@angular/core';2import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';3const TOKEN_CLASS = new InjectionToken('CLASS');4const TOKEN_EXISTING = new InjectionToken('EXISTING');5const TOKEN_FACTORY = new InjectionToken('FACTORY');6const TOKEN_VALUE = new InjectionToken('VALUE');7class ServiceClass {8  public readonly name = 'class';9}10@Injectable()11class ServiceExisting {12  public readonly name = 'existing';13}14// A module that provides all services.15@NgModule({16  providers: [17    ServiceExisting,18    {19      provide: TOKEN_CLASS,20      useClass: ServiceClass,21    },22    {23      provide: TOKEN_EXISTING,24      useExisting: ServiceExisting,25    },26    {27      provide: TOKEN_FACTORY,28      useFactory: () => 'FACTORY',29    },30    {31      provide: TOKEN_VALUE,32      useValue: 'VALUE',33    },34  ],35})36class TargetModule {}37// fix for jest without jasmine assertions38const assertion: any =39  typeof jasmine === 'undefined' ? expect : jasmine;40describe('TestToken', () => {41  ngMocks.faster();42  // Because we want to test the tokens, we pass them in .keep in43  // the chain on MockBuilder. To correctly satisfy their44  // initialization we need to pass its module as the second45  // parameter.46  beforeEach(() => {47    return MockBuilder(48      [TOKEN_CLASS, TOKEN_EXISTING, TOKEN_FACTORY, TOKEN_VALUE],49      TargetModule,50    );51  });52  it('creates TOKEN_CLASS', () => {53    const token =54      MockRender<ServiceClass>(TOKEN_CLASS).point.componentInstance;55    // Verifying that the token is an instance of ServiceClass.56    expect(token).toEqual(assertion.any(ServiceClass));57    expect(token.name).toEqual('class');58  });59  it('creates TOKEN_EXISTING', () => {60    const token =61      MockRender<ServiceExisting>(TOKEN_EXISTING).point62        .componentInstance;63    // Verifying that the token is an instance of ServiceExisting.64    // But because it has been replaced with a mock copy,65    // we should see an empty name.66    expect(token).toEqual(assertion.any(ServiceExisting));67    expect(token.name).toBeUndefined();68  });69  it('creates TOKEN_FACTORY', () => {70    const token = MockRender(TOKEN_FACTORY).point.componentInstance;71    // Checking that we have here what factory has been created.72    expect(token).toEqual('FACTORY');73  });74  it('creates TOKEN_VALUE', () => {75    const token = MockRender(TOKEN_VALUE).point.componentInstance;76    // Checking the set value.77    expect(token).toEqual('VALUE');78  });...

settings.spec.ts

Source:settings.spec.ts

1import supertest from "supertest"2import {app} from "../../../server_config"3import jwt from "../unit/mocks/mock_jwt"4import db from "./mocks/mock_db"5jwt.init()6db.init()7describe('check get settings routes', () => {8    test('getSettings with throw Settings', async () => {9        const response = await supertest(app).get("/settings").send().set('Cookie', ['token=token_existing']);10        expect(response.statusCode).toBe(500)11    })12})13describe('check create settings routes', () => {14    test('throw on creating setting', async () => {15        const response = await supertest(app).post("/settings").send({restrictionName: "real"}).set('Cookie', ['token=token_existing']);16        expect(response.statusCode).toBe(500)17    })18})19describe('check update settings routes catch', () => {20    test('throw in restriction id search', async () => {21        const response = await supertest(app).patch("/settings").send({restrictionName: "throw"}).set('Cookie', ['token=token_existing']);22        expect(response.statusCode).toBe(500)23    })24    test('throw in restriction connected to user search', async () => {25        const response = await supertest(app).patch("/settings").send({restrictionName: "throw2"}).set('Cookie', ['token=token_existing']);26        expect(response.statusCode).toBe(500)27    })28    test('throw in updateing settings', async () => {29        const response = await supertest(app).patch("/settings").send({restrictionName: "real"}).set('Cookie', ['token=token_existing']);30        expect(response.statusCode).toBe(500)31    })32})33describe('check delete settings routes', () => {34    test('delete Setting', async () => {35        const response = await supertest(app).delete("/settings").send({restrictionName: "nop"}).set('Cookie', ['token=token_existing']);36        expect(response.statusCode).toBe(500)37    })...

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