delete user

src/modules/users/tests/unit/delete-user.usecase.spec.ts

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+import { Test, TestingModule } from '@nestjs/testing';
+import { UsersRepository } from '../../adapters/secondaries/users.repository';
+import { DeleteUserCommand } from '../../commands/delete-user.command';
+import { DeleteUserUseCase } from '../../domain/usecases/delete-user.usecase';
+
+const usersMock = [
+  {
+    uuid: 'bb281075-1b98-4456-89d6-c643d3044a91',
+    firstName: 'John',
+    lastName: 'Doe',
+    email: 'john.doe@email.com',
+  },
+  {
+    uuid: 'bb281075-1b98-4456-89d6-c643d3044a92',
+    firstName: 'Jane',
+    lastName: 'Doe',
+    email: 'jane.doe@email.com',
+  },
+  {
+    uuid: 'bb281075-1b98-4456-89d6-c643d3044a93',
+    firstName: 'Jimmy',
+    lastName: 'Doe',
+    email: 'jimmy.doe@email.com',
+  },
+];
+
+const mockUsersRepository = {
+  delete: jest.fn().mockImplementation((uuid: string) => {
+    usersMock.forEach((user, index) => {
+      if (user.uuid === uuid) {
+        usersMock.splice(index, 1);
+        return Promise.resolve();
+      }
+    });
+  }),
+};
+
+describe('DeleteUserUseCase', () => {
+  let deleteUserUseCase: DeleteUserUseCase;
+
+  beforeAll(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        {
+          provide: UsersRepository,
+          useValue: mockUsersRepository,
+        },
+        DeleteUserUseCase,
+      ],
+    }).compile();
+
+    deleteUserUseCase = module.get<DeleteUserUseCase>(DeleteUserUseCase);
+  });
+
+  it('should be defined', () => {
+    expect(deleteUserUseCase).toBeDefined();
+  });
+
+  describe('execute', () => {
+    it('should delete an User', async () => {
+      const savedUuid = usersMock[0].uuid;
+      const deleteUserCommand = new DeleteUserCommand(savedUuid);
+      await deleteUserUseCase.execute(deleteUserCommand);
+
+      const deletedUser = usersMock.find((user) => user.uuid === savedUuid);
+      expect(deletedUser).toBeUndefined();
+    });
+  });
+});