public void ShouldThrowExceptionWhenGettingChatListMessagesByNameFailsOnGettingUser()
{
_chatMessageRepository = new Mock<IChatMessageRepository>();
_userRepository = new Mock<IUserRepository>();
_userRepository.Setup(a => a.Find(It.IsAny<Expression<Func<User, bool>>>(), false)).Throws(new Exception());
_chatMessagesLogic = new ChatMessagesLogic(_chatMessageRepository.Object, _userRepository.Object);
Assert.Throws<BlogException>(() => _chatMessagesLogic.GetChatMessagesListByUser("adhesive"));
}