void test_T3(const Tensor1< double, 3 > &t1_1, const Tensor1< double, 3 > &t1_2, const Tensor2< double, 3, 3 > &t2_2, const Tensor2< double, 3, 3 > &t2_3, const Tensor2_symmetric< double, 3 > &t2s_2, const Tensor2_symmetric< double, 3 > &t2s_3, const Tensor3< double, 3, 3, 3 > &t3_1, const Dg< double, 3, 3 > &t3dg_2)