public async Task InvalidGroupId()
{
var groupService = Substitute.For <IGroupService>();
var command = new StartCommand(groupService, Substitute.For <ITelegramBotClient>());
var response = command.GroupHandler(new Message(), -404).GetAsyncEnumerator();
Assert.True(await response.MoveNextAsync());
Assert.Equal("查询中……", response.Current.Content);
Assert.True(await response.MoveNextAsync());
Assert.Equal("没有这样的群", response.Current.Content);
Assert.False(await response.MoveNextAsync());
}
