inject mock email service in test app

api/src/modules/auth/authentication/authentication.controller.ts

@@ -13,13 +13,13 @@ export class AuthenticationController {
   @Public()
   @Post('signup')
   async signup(@Body() signupDto: LoginDto) {
-    return this.authService.signup(signupDto);
+    return this.authService.signUp(signupDto);
   }
 
   @Public()
   @UseGuards(LocalAuthGuard)
   @Post('login')
   async login(@GetUser() user: User) {
-    return this.authService.signIn(user);
+    return this.authService.logIn(user);
   }
 }

api/src/modules/auth/authentication/authentication.service.ts

@@ -20,21 +20,15 @@ export class AuthenticationService {
     throw new UnauthorizedException(`Invalid credentials`);
   }
 
-  async signup(signupDto: LoginDto): Promise<void> {
+  async signUp(signupDto: LoginDto): Promise<void> {
     const passwordHash = await bcrypt.hash(signupDto.password, 10);
     await this.usersService.createUser({
       email: signupDto.email,
       password: passwordHash,
     });
   }
 
-  async login(loginDto: LoginDto): Promise<{ access_token: string }> {
-    const user = await this.validateUser(loginDto.email, loginDto.password);
-    return {
-      access_token: this.jwt.sign({ id: user.id }),
-    };
-  }
-  async signIn(user: User): Promise<{ user: User; accessToken: string }> {
+  async logIn(user: User): Promise<{ user: User; accessToken: string }> {
     const payload: JwtPayload = { id: user.id };
     const accessToken: string = this.jwt.sign(payload);
     return { user, accessToken };

api/test/utils/mocks/mock-email.service.ts

@@ -0,0 +1,14 @@
+import {
+  IEmailServiceInterface,
+  SendMailDTO,
+} from '@api/modules/notifications/email/email-service.interface';
+import { Logger } from '@nestjs/common';
+
+export class MockEmailService implements IEmailServiceInterface {
+  logger: Logger = new Logger(MockEmailService.name);
+
+  sendMail = jest.fn(async (sendMailDTO: SendMailDTO): Promise<void> => {
+    this.logger.log('Mock Email sent');
+    return Promise.resolve();
+  });
+}

api/test/utils/test-manager.ts

@@ -11,6 +11,8 @@ import { getDataSourceToken } from '@nestjs/typeorm';
 import { clearTestDataFromDatabase } from './db-helpers';
 import { createUser } from './mocks/entity-mocks';
 import { User } from '@shared/entities/users/user.entity';
+import { IEmailServiceToken } from '@api/modules/notifications/email/email-service.interface';
+import { MockEmailService } from './mocks/mock-email.service';
 
 /**
  * @description: Abstraction for NestJS testing workflow. For now its a basic implementation to create a test app, but can be extended to encapsulate
@@ -34,7 +36,10 @@ export class TestManager {
   static async createTestManager() {
     const moduleFixture = await Test.createTestingModule({
       imports: [AppModule],
-    }).compile();
+    })
+      .overrideProvider(IEmailServiceToken)
+      .useClass(MockEmailService)
+      .compile();
     const dataSource = moduleFixture.get<DataSource>(getDataSourceToken());
     const testApp = moduleFixture.createNestApplication();
     // TODO: Add global validation or App level Zod when decided what to use