public async Task Should_Delete_User()
        {
            //Arrange
            CreateTestUsers();

            var user = await GetUserByUserNameOrNullAsync("artdent");

            user.ShouldNotBe(null);

            //Act
            await UserAppService.DeleteUser(new EntityDto <long>(user.Id));

            //Assert
            user = await GetUserByUserNameOrNullAsync("artdent");

            user.IsDeleted.ShouldBe(true);
        }