public void Password_Change_Must_Set_New_LastPasswordChangedDate()
{
// Arrange
User user = new User("username", password, passwordCoder);
// Act
var isPasswordChanged = user.ChangePassword(password, fakePassword, passwordCoder);
// Assert
Assert.IsTrue(isPasswordChanged, "Password isn't changed.");
Assert.AreNotEqual(user.CreationDate, user.LastPasswordChangedDate, "LastPasswordChangedDate and CreationDate are equal.");
}