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