public void PostTags()
{
var newEntity = _fixture.Build <TagModel>().Without(x => x.Id).Create();
int _maxEntityIdBeforeAdd = _entities.Max(a => a.Id);
// Act
var controller = new TagsController(_logger, _entityBL, _commonBL);
var result = controller.PostTags(newEntity) as OkNegotiatedContentResult <JsonResponse>;
// Assert
Assert.That(result.Content.Data, Is.EqualTo(_entities.Last()));
Assert.That(_maxEntityIdBeforeAdd + 1, Is.EqualTo(_entities.Last().Id));
}