public async Task GetAllConversationShouldReturnAllConversationPerUser()
{
await this.PopulateConversation();
var service = new MessengerService(this.conversationRepository, this.messageRepository);
List <TestConversationViewModel> conversations = service
.GetAllConversation <TestConversationViewModel>("ddd")
.ToList();
Assert.Single(conversations);
Assert.Equal("bbb", conversations[0].Name);
}