validate authentication use case

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

@@ -0,0 +1,75 @@
+import { IdResponse } from '@mobicoop/ddd-library';
+import { RpcExceptionCode } from '@mobicoop/ddd-library';
+import { ValidateAuthenticationRequestDto } from '@modules/authentication/interface/grpc-controllers/dtos/validate-authentication.request.dto';
+import { ValidateAuthenticationGrpcController } from '@modules/authentication/interface/grpc-controllers/validate-authentication.grpc.controller';
+import { QueryBus } from '@nestjs/cqrs';
+import { RpcException } from '@nestjs/microservices';
+import { Test, TestingModule } from '@nestjs/testing';
+
+const validateAuthenticationRequest: ValidateAuthenticationRequestDto = {
+  password: 'John123',
+  name: 'john.doe@email.com',
+};
+
+const mockQueryBus = {
+  execute: jest
+    .fn()
+    .mockImplementationOnce(() => '78153e03-4861-4f58-a705-88526efee53b')
+    .mockImplementationOnce(() => {
+      throw new Error();
+    }),
+};
+
+describe('Validate Authentication Grpc Controller', () => {
+  let validateAuthenticationGrpcController: ValidateAuthenticationGrpcController;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: QueryBus,
+          useValue: mockQueryBus,
+        },
+        ValidateAuthenticationGrpcController,
+      ],
+    }).compile();
+
+    validateAuthenticationGrpcController =
+      module.get<ValidateAuthenticationGrpcController>(
+        ValidateAuthenticationGrpcController,
+      );
+  });
+
+  afterEach(async () => {
+    jest.clearAllMocks();
+  });
+
+  it('should be defined', () => {
+    expect(validateAuthenticationGrpcController).toBeDefined();
+  });
+
+  it('should validate an authentication', async () => {
+    jest.spyOn(mockQueryBus, 'execute');
+    const result: IdResponse =
+      await validateAuthenticationGrpcController.validate(
+        validateAuthenticationRequest,
+      );
+    expect(result).toBeInstanceOf(IdResponse);
+    expect(result.id).toBe('78153e03-4861-4f58-a705-88526efee53b');
+    expect(mockQueryBus.execute).toHaveBeenCalledTimes(1);
+  });
+
+  it('should throw a dedicated RpcException if authentication fails', async () => {
+    jest.spyOn(mockQueryBus, 'execute');
+    expect.assertions(3);
+    try {
+      await validateAuthenticationGrpcController.validate(
+        validateAuthenticationRequest,
+      );
+    } catch (e: any) {
+      expect(e).toBeInstanceOf(RpcException);
+      expect(e.error.code).toBe(RpcExceptionCode.PERMISSION_DENIED);
+    }
+    expect(mockQueryBus.execute).toHaveBeenCalledTimes(1);
+  });
+});