upgrade repositories

.env.test

@@ -5,6 +5,10 @@ SERVICE_PORT=5002
 # PRISMA
 DATABASE_URL="postgresql://mobicoop:mobicoop@localhost:5432/mobicoop-test?schema=auth"
 
+# MESSAGE BROKER
+MESSAGE_BROKER_URI=amqp://v3-broker:5672
+MESSAGE_BROKER_EXCHANGE=mobicoop
+
 # OPA
 OPA_IMAGE=openpolicyagent/opa:0.54.0
 OPA_URL=http://v3-auth-opa:8181/v1/data/

package.json

@@ -20,7 +20,7 @@
     "test": "npm run migrate:test && dotenv -e .env.test jest",
     "test:unit": "jest --testPathPattern 'tests/unit/' --verbose",
     "test:unit:ci": "jest --testPathPattern 'tests/unit/' --coverage",
-    "test:integration": "npm run migrate:test && dotenv -e .env.test -- jest --testPathPattern 'tests/integration/' --verbose",
+    "test:integration": "npm run migrate:test && dotenv -e .env.test -- jest --testPathPattern 'tests/integration/' --verbose --runInBand",
     "test:integration:ci": "npm run migrate:test:ci && dotenv -e ci/.env.ci -- jest --testPathPattern 'tests/integration/'",
     "test:cov": "jest --testPathPattern 'tests/unit/' --coverage",
     "test:e2e": "jest --config ./test/jest-e2e.json",

src/modules/authentication/core/application/commands/delete-username/delete-username.service.ts

@@ -1,4 +1,4 @@
-import { Inject } from '@nestjs/common';
+import { Inject, UnauthorizedException } from '@nestjs/common';
 import { CommandHandler, ICommandHandler } from '@nestjs/cqrs';
 import { DeleteUsernameCommand } from './delete-username.command';
 import { USERNAME_REPOSITORY } from '@modules/authentication/authentication.di-tokens';
@@ -13,11 +13,20 @@ export class DeleteUsernameService implements ICommandHandler {
   ) {}
 
   async execute(command: DeleteUsernameCommand): Promise<boolean> {
-    const username: UsernameEntity = await this.usernameRepository.findOneById(
+    const username: UsernameEntity = await this.usernameRepository.findByName(
       command.name,
     );
+    const usernamesCount: number = await this.usernameRepository.countUsernames(
+      username.getProps().userId,
+    );
+    if (usernamesCount <= 1)
+      throw new UnauthorizedException(
+        'Authentication must have at least one username',
+      );
     username.delete();
-    const isDeleted: boolean = await this.usernameRepository.delete(username);
+    const isDeleted: boolean = await this.usernameRepository.deleteUsername(
+      username,
+    );
     return isDeleted;
   }
 }

src/modules/authentication/core/application/ports/username.repository.port.ts

@@ -6,4 +6,6 @@ export type UsernameRepositoryPort = RepositoryPort<UsernameEntity> & {
   findByType(userId: string, type: Type): Promise<UsernameEntity>;
   findByName(name: string): Promise<UsernameEntity>;
   updateUsername(oldName: string, entity: UsernameEntity): Promise<void>;
+  deleteUsername(entity: UsernameEntity): Promise<boolean>;
+  countUsernames(userId: string): Promise<number>;
 };

src/modules/authentication/infrastructure/username.repository.ts

@@ -71,11 +71,13 @@ export class UsernameRepository
   updateUsername = async (
     oldName: string,
     entity: UsernameEntity,
-  ): Promise<void> =>
+  ): Promise<void> => this.update(oldName, entity, 'username');
-    this.updateWhere(
+
-      {
+  deleteUsername = async (entity: UsernameEntity): Promise<boolean> =>
-        username: oldName,
+    this.delete(entity, 'username');
-      },
+
-      entity,
+  countUsernames = async (userId: string): Promise<number> =>
-    );
+    this.count({
+      authUuid: userId,
+    });
 }

src/modules/authentication/interface/grpc-controllers/delete-username.grpc.controller.ts

@@ -4,7 +4,7 @@ import {
   RpcExceptionCode,
   RpcValidationPipe,
 } from '@mobicoop/ddd-library';
-import { Controller, UsePipes } from '@nestjs/common';
+import { Controller, UnauthorizedException, UsePipes } from '@nestjs/common';
 import { CommandBus } from '@nestjs/cqrs';
 import { GrpcMethod, RpcException } from '@nestjs/microservices';
 import { DeleteUsernameRequestDto } from './dtos/delete-username.request.dto';
@@ -25,12 +25,16 @@ export class DeleteUsernameGrpcController {
     try {
       await this.commandBus.execute(new DeleteUsernameCommand(data));
     } catch (error: any) {
+      if (error instanceof UnauthorizedException)
+        throw new RpcException({
+          code: RpcExceptionCode.PERMISSION_DENIED,
+          message: error.message,
+        });
       if (error instanceof NotFoundException)
         throw new RpcException({
           code: RpcExceptionCode.NOT_FOUND,
           message: error.message,
         });
-
       if (error instanceof DatabaseErrorException)
         throw new RpcException({
           code: RpcExceptionCode.INTERNAL,

src/modules/authentication/tests/integration/authentication.repository.spec.ts

@@ -0,0 +1,231 @@
+import { TestingModule, Test } from '@nestjs/testing';
+import { v4 } from 'uuid';
+import * as bcrypt from 'bcrypt';
+import { PrismaService } from '@modules/authentication/infrastructure/prisma.service';
+import { AuthenticationRepository } from '@modules/authentication/infrastructure/authentication.repository';
+import { AuthenticationMapper } from '@modules/authentication/authentication.mapper';
+import { EventEmitterModule } from '@nestjs/event-emitter';
+import { MESSAGE_PUBLISHER } from '@src/app.di-tokens';
+import {
+  DatabaseErrorException,
+  NotFoundException,
+  UniqueConstraintException,
+} from '@mobicoop/ddd-library';
+import { AuthenticationEntity } from '@modules/authentication/core/domain/authentication.entity';
+import { Type } from '@modules/authentication/core/domain/username.types';
+import { CreateAuthenticationProps } from '@modules/authentication/core/domain/authentication.types';
+
+const uuid = '165192d4-398a-4469-a16b-98c02cc6f531';
+
+const createAuthenticationProps: CreateAuthenticationProps = {
+  userId: uuid,
+  password: 'somePassword',
+  usernames: [
+    {
+      type: Type.EMAIL,
+      name: 'john.doe@email.com',
+    },
+  ],
+};
+
+const mockMessagePublisher = {
+  publish: jest.fn().mockImplementation(),
+};
+
+const mockLogger = {
+  log: jest.fn(),
+  warn: jest.fn(),
+  error: jest.fn(),
+};
+
+describe('AuthenticationRepository', () => {
+  let prismaService: PrismaService;
+  let authenticationRepository: AuthenticationRepository;
+
+  // const createAuthentications = async (nbToCreate = 10) => {
+  //   for (let i = 0; i < nbToCreate; i++) {
+  //     await prismaService.auth.create({
+  //       data: {
+  //         uuid: v4(),
+  //         password: bcrypt.hashSync(`password-${i}`, 10),
+  //       },
+  //     });
+  //   }
+  // };
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      imports: [EventEmitterModule.forRoot()],
+      providers: [
+        AuthenticationRepository,
+        PrismaService,
+        AuthenticationMapper,
+        {
+          provide: MESSAGE_PUBLISHER,
+          useValue: mockMessagePublisher,
+        },
+      ],
+    })
+      // disable logging
+      .setLogger(mockLogger)
+      .compile();
+
+    prismaService = module.get<PrismaService>(PrismaService);
+    authenticationRepository = module.get<AuthenticationRepository>(
+      AuthenticationRepository,
+    );
+  });
+
+  afterAll(async () => {
+    await prismaService.$disconnect();
+  });
+
+  beforeEach(async () => {
+    await prismaService.auth.deleteMany();
+  });
+
+  // describe('findAll', () => {
+  //   it('should return an empty data array', async () => {
+  //     const res = await authenticationRepository.findAll();
+  //     expect(res).toEqual({
+  //       data: [],
+  //       total: 0,
+  //     });
+  //   });
+
+  //   it('should return a data array with 8 auths', async () => {
+  //     await createAuthentications(8);
+  //     const auths = await authenticationRepository.findAll();
+  //     expect(auths.data.length).toBe(8);
+  //     expect(auths.total).toBe(8);
+  //   });
+
+  //   it('should return a data array limited to 10 authentications', async () => {
+  //     await createAuthentications(20);
+  //     const auths = await authenticationRepository.findAll();
+  //     expect(auths.data.length).toBe(10);
+  //     expect(auths.total).toBe(20);
+  //   });
+  // });
+
+  describe('findOneById', () => {
+    it('should return an authentication', async () => {
+      const authToFind = await prismaService.auth.create({
+        data: {
+          uuid: v4(),
+          password: bcrypt.hashSync(`password`, 10),
+        },
+      });
+
+      const auth = await authenticationRepository.findOneById(authToFind.uuid);
+      expect(auth.id).toBe(authToFind.uuid);
+    });
+
+    it('should throw an exception if record is not found', async () => {
+      await expect(
+        authenticationRepository.findOneById(
+          '544572be-11fb-4244-8235-587221fc9104',
+        ),
+      ).rejects.toBeInstanceOf(NotFoundException);
+    });
+  });
+
+  describe('create', () => {
+    it('should create an authentication', async () => {
+      const beforeCount = await prismaService.auth.count();
+
+      const authenticationToCreate: AuthenticationEntity =
+        await AuthenticationEntity.create(createAuthenticationProps);
+      await authenticationRepository.insert(authenticationToCreate);
+
+      const afterCount = await prismaService.auth.count();
+
+      expect(afterCount - beforeCount).toBe(1);
+    });
+
+    it('should throw a UniqueConstraintException if authentication already exists', async () => {
+      await prismaService.auth.create({
+        data: {
+          uuid: uuid,
+          password: bcrypt.hashSync(`password`, 10),
+        },
+      });
+
+      const authenticationToCreate: AuthenticationEntity =
+        await AuthenticationEntity.create(createAuthenticationProps);
+      await expect(
+        authenticationRepository.insert(authenticationToCreate),
+      ).rejects.toBeInstanceOf(UniqueConstraintException);
+    });
+  });
+
+  describe('update', () => {
+    it('should update an authentication', async () => {
+      const authenticationToUpdate = await prismaService.auth.create({
+        data: {
+          uuid: v4(),
+          password: bcrypt.hashSync(`password`, 10),
+        },
+      });
+
+      const toUpdate: AuthenticationEntity = await AuthenticationEntity.create(
+        createAuthenticationProps,
+      );
+      await authenticationRepository.update(
+        authenticationToUpdate.uuid,
+        toUpdate,
+      );
+
+      const updatedAuthentication = await prismaService.auth.findUnique({
+        where: {
+          uuid: toUpdate.id,
+        },
+      });
+
+      expect(updatedAuthentication.uuid).toBe(uuid);
+      expect(authenticationToUpdate.updatedAt.getTime()).toBeLessThan(
+        updatedAuthentication.updatedAt.getTime(),
+      );
+    });
+
+    it('should throw a DatabaseException if id is unknown', async () => {
+      const toUpdate: AuthenticationEntity = await AuthenticationEntity.create(
+        createAuthenticationProps,
+      );
+
+      await expect(
+        authenticationRepository.update(
+          '544572be-11fb-4244-8235-587221fc9104',
+          toUpdate,
+        ),
+      ).rejects.toBeInstanceOf(DatabaseErrorException);
+    });
+  });
+
+  describe('delete', () => {
+    it('should delete an authentication', async () => {
+      await prismaService.auth.create({
+        data: {
+          uuid,
+          password: bcrypt.hashSync(`password`, 10),
+        },
+      });
+      const toDelete: AuthenticationEntity = await AuthenticationEntity.create(
+        createAuthenticationProps,
+      );
+      await authenticationRepository.delete(toDelete);
+
+      const count = await prismaService.auth.count();
+      expect(count).toBe(0);
+    });
+
+    it('should throw a DatabaseException if authentication does not exist', async () => {
+      const toDelete: AuthenticationEntity = await AuthenticationEntity.create(
+        createAuthenticationProps,
+      );
+      await expect(
+        authenticationRepository.delete(toDelete),
+      ).rejects.toBeInstanceOf(DatabaseErrorException);
+    });
+  });
+});

src/modules/authentication/tests/integration/username.repository.spec.ts

@@ -0,0 +1,202 @@
+import { TestingModule, Test } from '@nestjs/testing';
+import { PrismaService } from '@modules/authentication/infrastructure/prisma.service';
+import { EventEmitterModule } from '@nestjs/event-emitter';
+import { MESSAGE_PUBLISHER } from '@src/app.di-tokens';
+import {
+  DatabaseErrorException,
+  NotFoundException,
+  UniqueConstraintException,
+} from '@mobicoop/ddd-library';
+import {
+  CreateUsernameProps,
+  Type,
+} from '@modules/authentication/core/domain/username.types';
+import { UsernameRepository } from '@modules/authentication/infrastructure/username.repository';
+import { UsernameMapper } from '@modules/authentication/username.mapper';
+import * as bcrypt from 'bcrypt';
+import { UsernameEntity } from '@modules/authentication/core/domain/username.entity';
+
+const authUuid = 'a4524d22-7be3-46cd-8444-3145470476dc';
+
+const createUsernameProps: CreateUsernameProps = {
+  userId: authUuid,
+  type: Type.EMAIL,
+  name: 'john.doe@email.com',
+};
+
+const mockMessagePublisher = {
+  publish: jest.fn().mockImplementation(),
+};
+
+const mockLogger = {
+  log: jest.fn(),
+  warn: jest.fn(),
+  error: jest.fn(),
+};
+
+describe('UsernameRepository', () => {
+  let prismaService: PrismaService;
+  let usernameRepository: UsernameRepository;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      imports: [EventEmitterModule.forRoot()],
+      providers: [
+        UsernameRepository,
+        PrismaService,
+        UsernameMapper,
+        {
+          provide: MESSAGE_PUBLISHER,
+          useValue: mockMessagePublisher,
+        },
+      ],
+    })
+      // disable logging
+      .setLogger(mockLogger)
+      .compile();
+
+    prismaService = module.get<PrismaService>(PrismaService);
+    usernameRepository = module.get<UsernameRepository>(UsernameRepository);
+  });
+
+  afterAll(async () => {
+    await prismaService.$disconnect();
+  });
+
+  beforeEach(async () => {
+    await prismaService.username.deleteMany();
+    await prismaService.auth.deleteMany();
+    await prismaService.auth.create({
+      data: {
+        uuid: authUuid,
+        password: bcrypt.hashSync(`password`, 10),
+      },
+    });
+  });
+
+  describe('findOne', () => {
+    it('should return a Username', async () => {
+      await prismaService.username.create({
+        data: {
+          authUuid,
+          username: 'john.doe@email.com',
+          type: Type.EMAIL,
+        },
+      });
+
+      const username = await usernameRepository.findOne({
+        username: 'john.doe@email.com',
+      });
+      expect(username.id).toBe('john.doe@email.com');
+    });
+
+    it('should throw an exception if record is not found', async () => {
+      await expect(
+        usernameRepository.findOne({
+          username: 'jane.doe@email.com',
+        }),
+      ).rejects.toBeInstanceOf(NotFoundException);
+    });
+  });
+
+  describe('create', () => {
+    it('should create a username', async () => {
+      const beforeCount = await prismaService.username.count();
+
+      const usernameToCreate: UsernameEntity = await UsernameEntity.create(
+        createUsernameProps,
+      );
+      await usernameRepository.insert(usernameToCreate);
+
+      const afterCount = await prismaService.username.count();
+
+      expect(afterCount - beforeCount).toBe(1);
+    });
+
+    it('should throw a UniqueConstraintException if username already exists', async () => {
+      await prismaService.username.create({
+        data: {
+          authUuid,
+          type: Type.EMAIL,
+          username: 'john.doe@email.com',
+        },
+      });
+
+      const usernameToCreate: UsernameEntity = await UsernameEntity.create(
+        createUsernameProps,
+      );
+      await expect(
+        usernameRepository.insert(usernameToCreate),
+      ).rejects.toBeInstanceOf(UniqueConstraintException);
+    });
+  });
+
+  describe('update username', () => {
+    it('should update the name of a username', async () => {
+      const usernameToUpdate = await prismaService.username.create({
+        data: {
+          authUuid,
+          type: Type.EMAIL,
+          username: 'johnny.doe@email.com',
+        },
+      });
+
+      const toUpdate: UsernameEntity = await UsernameEntity.create(
+        createUsernameProps,
+      );
+      await usernameRepository.updateUsername(
+        usernameToUpdate.username,
+        toUpdate,
+      );
+
+      const updatedUsername = await prismaService.username.findUnique({
+        where: {
+          username: toUpdate.id,
+        },
+      });
+
+      expect(updatedUsername.username).toBe('john.doe@email.com');
+      expect(usernameToUpdate.updatedAt.getTime()).toBeLessThan(
+        updatedUsername.updatedAt.getTime(),
+      );
+    });
+
+    it('should throw a DatabaseException if id is unknown', async () => {
+      const toUpdate: UsernameEntity = await UsernameEntity.create(
+        createUsernameProps,
+      );
+
+      await expect(
+        usernameRepository.updateUsername('jane.doe@email.com', toUpdate),
+      ).rejects.toBeInstanceOf(DatabaseErrorException);
+    });
+  });
+
+  describe('delete', () => {
+    it('should delete a username', async () => {
+      await prismaService.username.create({
+        data: {
+          authUuid,
+          type: Type.EMAIL,
+          username: 'john.doe@email.com',
+        },
+      });
+      const toDelete: UsernameEntity = await UsernameEntity.create(
+        createUsernameProps,
+      );
+      await usernameRepository.delete(toDelete);
+
+      const count = await prismaService.username.count();
+      expect(count).toBe(0);
+    });
+
+    it('should throw a DatabaseException if username does not exist', async () => {
+      const toDelete: UsernameEntity = await UsernameEntity.create(
+        createUsernameProps,
+      );
+      await expect(usernameRepository.delete(toDelete)).rejects.toBeInstanceOf(
+        DatabaseErrorException,
+      );
+    });
+  });
+});

src/modules/authentication/tests/unit/core/delete-username.service.spec.ts

@@ -2,6 +2,7 @@ import { USERNAME_REPOSITORY } from '@modules/authentication/authentication.di-t
 import { DeleteUsernameCommand } from '@modules/authentication/core/application/commands/delete-username/delete-username.command';
 import { DeleteUsernameService } from '@modules/authentication/core/application/commands/delete-username/delete-username.service';
 import { DeleteUsernameRequestDto } from '@modules/authentication/interface/grpc-controllers/dtos/delete-username.request.dto';
+import { UnauthorizedException } from '@nestjs/common';
 import { Test, TestingModule } from '@nestjs/testing';
 
 const deleteUsernameRequest: DeleteUsernameRequestDto = {
@@ -10,11 +11,18 @@ const deleteUsernameRequest: DeleteUsernameRequestDto = {
 
 const mockUsernameEntity = {
   delete: jest.fn(),
+  getProps: jest.fn().mockImplementation(() => ({
+    userId: 'b1643072-757f-4e3b-87f2-63af3684afb8',
+  })),
 };
 
 const mockUsernameRepository = {
-  findOneById: jest.fn().mockImplementation(() => mockUsernameEntity),
+  findByName: jest.fn().mockImplementation(() => mockUsernameEntity),
-  delete: jest.fn().mockImplementationOnce(() => true),
+  countUsernames: jest
+    .fn()
+    .mockImplementationOnce(() => 2)
+    .mockImplementationOnce(() => 1),
+  deleteUsername: jest.fn().mockImplementationOnce(() => true),
 };
 
 describe('Delete Username Service', () => {
@@ -50,5 +58,10 @@ describe('Delete Username Service', () => {
       );
       expect(result).toBeTruthy();
     });
+    it('should throw an exception when trying to delete the last username', async () => {
+      await expect(
+        deleteUsernameService.execute(deleteUsernameCommand),
+      ).rejects.toBeInstanceOf(UnauthorizedException);
+    });
   });
 });

src/modules/authentication/tests/unit/infrastructure/username.repository.spec.ts

@@ -22,8 +22,9 @@ const mockPrismaService = {
       };
       return record;
     }),
-
     update: jest.fn().mockImplementation(),
+    delete: jest.fn().mockImplementation(),
+    count: jest.fn().mockImplementation(),
   },
 };
 
@@ -67,6 +68,7 @@ describe('Username repository', () => {
   it('should be defined', () => {
     expect(usernameRepository).toBeDefined();
   });
+
   it('should find a username by its userId and Type', async () => {
     jest.spyOn(usernameRepository, 'findOne');
     const username: UsernameEntity = await usernameRepository.findByType(
@@ -80,6 +82,7 @@ describe('Username repository', () => {
     });
     expect(username.getProps().name).toBe('john.doe@email.com');
   });
+
   it('should find a username by its name', async () => {
     jest.spyOn(usernameRepository, 'findOne');
     const username: UsernameEntity = await usernameRepository.findByName(
@@ -91,8 +94,9 @@ describe('Username repository', () => {
     });
     expect(username.getProps().name).toBe('john.doe@email.com');
   });
+
   it('should update a username', async () => {
-    jest.spyOn(usernameRepository, 'updateWhere');
+    jest.spyOn(usernameRepository, 'update');
     const usernameToUpdate: UsernameEntity = await UsernameEntity.create({
       userId: '165192d4-398a-4469-a16b-98c02cc6f531',
       type: Type.EMAIL,
@@ -102,12 +106,35 @@ describe('Username repository', () => {
       'john.doe@email.com',
       usernameToUpdate,
     );
-    expect(usernameRepository.updateWhere).toHaveBeenCalledTimes(1);
+    expect(usernameRepository.update).toHaveBeenCalledTimes(1);
-    expect(usernameRepository.updateWhere).toHaveBeenCalledWith(
+    expect(usernameRepository.update).toHaveBeenCalledWith(
-      {
+      'john.doe@email.com',
-        username: 'john.doe@email.com',
-      },
       usernameToUpdate,
+      'username',
     );
   });
+
+  it('should delete a username', async () => {
+    jest.spyOn(usernameRepository, 'delete');
+    const usernameToDelete: UsernameEntity = await UsernameEntity.create({
+      userId: '165192d4-398a-4469-a16b-98c02cc6f531',
+      type: Type.EMAIL,
+      name: 'john.doe@new-email.com',
+    });
+    await usernameRepository.deleteUsername(usernameToDelete);
+    expect(usernameRepository.delete).toHaveBeenCalledTimes(1);
+    expect(usernameRepository.delete).toHaveBeenCalledWith(
+      usernameToDelete,
+      'username',
+    );
+  });
+
+  it('should count usernames for a given userId', async () => {
+    jest.spyOn(usernameRepository, 'count');
+    await usernameRepository.countUsernames('john.doe@email.com');
+    expect(usernameRepository.count).toHaveBeenCalledTimes(1);
+    expect(usernameRepository.count).toHaveBeenCalledWith({
+      authUuid: 'john.doe@email.com',
+    });
+  });
 });

src/modules/authentication/tests/unit/interface/delete-username.grpc.controller.spec.ts

@@ -5,6 +5,7 @@ import {
 import { RpcExceptionCode } from '@mobicoop/ddd-library';
 import { DeleteUsernameGrpcController } from '@modules/authentication/interface/grpc-controllers/delete-username.grpc.controller';
 import { DeleteUsernameRequestDto } from '@modules/authentication/interface/grpc-controllers/dtos/delete-username.request.dto';
+import { UnauthorizedException } from '@nestjs/common';
 import { CommandBus } from '@nestjs/cqrs';
 import { RpcException } from '@nestjs/microservices';
 import { Test, TestingModule } from '@nestjs/testing';
@@ -17,6 +18,9 @@ const mockCommandBus = {
   execute: jest
     .fn()
     .mockImplementationOnce(() => ({}))
+    .mockImplementationOnce(() => {
+      throw new UnauthorizedException();
+    })
     .mockImplementationOnce(() => {
       throw new NotFoundException();
     })
@@ -61,6 +65,18 @@ describe('Delete Username Grpc Controller', () => {
     expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
   });
 
+  it('should throw a dedicated RpcException when trying to delete the last username', async () => {
+    jest.spyOn(mockCommandBus, 'execute');
+    expect.assertions(3);
+    try {
+      await deleteUsernameGrpcController.delete(deleteUsernameRequest);
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.PERMISSION_DENIED);
+    }
+    expect(mockCommandBus.execute).toHaveBeenCalledTimes(1);
+  });
+
   it('should throw a dedicated RpcException if username does not exist', async () => {
     jest.spyOn(mockCommandBus, 'execute');
     expect.assertions(3);