public async Task GetFirstObjectAsync_Exist_ReturnNull()
{
await PerformSingleObjectExistAsyncTest(() => _session.GetFirstObjectAsync(SingleObjectQuery), CreateTestUser);
}
/// <summary>
/// Gets the first object by query asynchronously.
/// </summary>
/// <param name="query">The query.</param>
/// <returns></returns>
public Task <T> GetFirstByQueryAsync(Expression <Func <T, bool> > query)
{
return(Session.GetFirstObjectAsync(query));
}