public void GetById()
        {
            // Arrange
            IRepository<Employee> repository = new FileSystemRepository(new TestFileHelper());
            EmployeeController controller = new EmployeeController(repository);

            //// Act
            Employee result = controller.GetEmployeeById(2);

            //// Assert
            Assert.IsNotNull(result);
            Assert.AreEqual(2, result.id);
        }
        public void Get()
        {
            // Arrange
            IRepository<Employee> repository = new FileSystemRepository(new TestFileHelper());
            EmployeeController controller = new EmployeeController(repository);

            // Act
            IEnumerable<Employee> result = controller.GetAllEmployees();

            // Assert
            Assert.IsNotNull(result);
            Assert.AreEqual(2, result.Count());
        }
        public void Post()
        {
            // Arrange
            IRepository<Employee> repository = new FileSystemRepository(new TestFileHelper());
            EmployeeController controller = new EmployeeController(repository);
            int lengthBefore = controller.GetAllEmployees().Count();

            // Act
            Employee e = new Employee {id = 4, name="test",age=45,sex="female"};
            controller.PostEmployee(e);
            int lengthAfter = controller.GetAllEmployees().Count();

            // Assert
            Assert.AreEqual(lengthBefore + 1, lengthAfter);
        }