public void DeleteRangeByEntities_Should_InvokeGenericRepositoryDeleteRange_Once()
{
var entityList = new Collection <Entity <int> >()
{
new Entity <int>(), new Entity <int>(), new Entity <int>()
};
_genericService.DeleteRange(entityList);
_mockGenericRepository.Verify(x => x.DeleteRange(entityList), Times.Once);
}