public async Task ShouldCreateUser()
{
#region Given
string userId = UserIdMother.Id();
User user = UserMother.User(userId);
var userRepository = new Mock <UserRepository>();
userRepository
.Setup(r => r.Save(It.IsAny <User>()));
UserCreator userCreator = new UserCreator(userRepository.Object);
#endregion
#region When
await userCreator.Execute(user);
#endregion
#region Then
userRepository.Verify(r => r.Save(It.IsAny <User>()), Times.Once());
#endregion
}
public void ShouldThrowAnExceptionWhenUserAlreadyExists()
{
#region Given
string userId = UserIdMother.Id();
string expectedMessage = $"The user '{userId}' already exists";
User user = UserMother.User(userId);
var userRepository = new Mock <UserRepository>();
userRepository
.Setup(r => r.Find(It.IsAny <UserId>()))
.ReturnsAsync(UserMother.User(userId));
userRepository
.Setup(r => r.Exists(It.IsAny <UserId>()))
.ReturnsAsync(true);
userRepository
.Setup(r => r.Save(It.IsAny <User>()));
UserCreator userCreator = new UserCreator(userRepository.Object);
#endregion
#region When
var exception = Record.ExceptionAsync(async() => await userCreator.Execute(user));
#endregion
#region Then
Assert.Equal(expectedMessage, exception.Result.Message);
#endregion
}
public async Task Execute(string userId)
{
await _userCreator.Execute(User.Create(new UserId(userId)));
}