nestjs-authentication-example-3

authentication.module.ts

import { HttpModule, Module } from '@nestjs/common';

import { AuthenticationGuard } from './authentication.guard';
import { AuthenticationService } from './authentication.service';
import { AUTHENTICATION_STRATEGY_TOKEN } from './authentication.strategy';
import { KeycloakAuthenticationStrategy } from './strategy/keycloak.strategy';

@Module({
    imports: [
        HttpModule,
    ],
    providers: [
        AuthenticationGuard,
        AuthenticationService,
        {
            provide: AUTHENTICATION_STRATEGY_TOKEN,
            useClass: KeycloakAuthenticationStrategy, // <-- No more test-related code
        },
    ],
    exports: [
        AuthenticationService,
    ],
})
export class AuthenticationModule {}

e2e.spec.ts

import { Test } from '@nestjs/testing';
import * as request from 'supertest';

import { AppModule } from './app.module';
import { INestApplication } from '@nestjs/common';
import { createToken } from '../test/helpers/authentication/create-token';
import { AUTHENTICATION_STRATEGY_TOKEN } from './authentication/authentication.strategy';
import { FakeAuthenticationStrategy } from './authentication/strategy/fake.strategy';

describe('Hello E2E', () => {
    let app: INestApplication;
    let server: any;

    const token = createToken();

    beforeEach(async () => {
        const module = await Test.createTestingModule({
            imports: [
                AppModule
            ],
        })
            // This line is now required is every E2E test
            .overrideProvider(AUTHENTICATION_STRATEGY_TOKEN).useClass(FakeAuthenticationStrategy)
            .compile();

        app = module.createNestApplication();
        await app.init();

        server = app.getHttpServer();
    });
    
    ...
});