public async Task CreateAsyncByItemsShouldSucceed()
{
var deleteCount = await _mockRepo.DeleteAsync(x => x.MatchAll());
var items = new List <MockDocument> {
_mockDocumentWithId, _mockDocumentWithoutId
};
var count = await _mockRepo.CreateAsync(items);
Assert.Equal(2, deleteCount);
Assert.Equal(2, count);
}