void test_T3as(const Tensor1< double, 3 > &t1_2, const Tensor2< double, 3, 3 > &t2_2, Dg< double, 3, 3 > &t3dg_1, const Dg< double, 3, 3 > &t3dg_2, Tensor3_antisymmetric< double, 3, 3 > &t3as_1, const Tensor3_antisymmetric< double, 3, 3 > &t3as_2, const Tensor3_antisymmetric< double, 3, 3 > &t3as_3)