test_T2_12.cpp

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#include "../../../src/FTensor.hpp"
#include "../test_for_zero.hpp"
#include <iostream>
using namespace FTensor;
using namespace std;
 
void test_T2_12(const Tensor2<double, 3, 3> &t2_1)
{
  Index<'i', 3> i;
  Index<'j', 3> j;
 
  Number<0> N0;
  Number<1> N1;
  Number<2> N2;
 
  /* Tensor2 tests */
  Tensor2<double, 3, 3> t2;
  t2(i, j) = t2_1(i, j);
 
  t2(i, N0) *= 4;
  t2(i, N1) *= 6;
  t2(i, N2) *= 8;
  test_for_zero(t2(0, 0) - (t2_1(0, 0) * 4), "T2(i,N)*=T(0,0)");
  test_for_zero(t2(1, 0) - (t2_1(1, 0) * 4), "T2(i,N)*=T(1,0)");
  test_for_zero(t2(2, 0) - (t2_1(2, 0) * 4), "T2(i,N)*=T(2,0)");
  test_for_zero(t2(0, 1) - (t2_1(0, 1) * 6), "T2(i,N)*=T(0,1)");
  test_for_zero(t2(1, 1) - (t2_1(1, 1) * 6), "T2(i,N)*=T(1,1)");
  test_for_zero(t2(2, 1) - (t2_1(2, 1) * 6), "T2(i,N)*=T(2,1)");
  test_for_zero(t2(0, 2) - (t2_1(0, 2) * 8), "T2(i,N)*=T(0,2)");
  test_for_zero(t2(1, 2) - (t2_1(1, 2) * 8), "T2(i,N)*=T(1,2)");
  test_for_zero(t2(2, 2) - (t2_1(2, 2) * 8), "T2(i,N)*=T(2,2)");
 
  t2(i, j) = t2_1(i, j);
  t2(i, N0) /= 2;
  t2(i, N1) /= 3;
  t2(i, N2) /= 4;
 
  test_for_zero(t2(0, 0) - (t2_1(0, 0) / 2), "T2(i,N)/=T(0,0)");
  test_for_zero(t2(1, 0) - (t2_1(1, 0) / 2), "T2(i,N)/=T(1,0)");
  test_for_zero(t2(2, 0) - (t2_1(2, 0) / 2), "T2(i,N)/=T(2,0)");
  test_for_zero(t2(0, 1) - (t2_1(0, 1) / 3), "T2(i,N)/=T(0,1)");
  test_for_zero(t2(1, 1) - (t2_1(1, 1) / 3), "T2(i,N)/=T(1,1)");
  test_for_zero(t2(2, 1) - (t2_1(2, 1) / 3), "T2(i,N)/=T(2,1)");
  test_for_zero(t2(0, 2) - (t2_1(0, 2) / 4), "T2(i,N)/=T(0,2)");
  test_for_zero(t2(1, 2) - (t2_1(1, 2) / 4), "T2(i,N)/=T(1,2)");
  test_for_zero(t2(2, 2) - (t2_1(2, 2) / 4), "T2(i,N)/=T(2,2)");
 
  t2(i, j) = t2_1(i, j);
  const Tensor2<double, 3, 3> t2_const(t2);
  test_for_zero(t2_const(i, i) - (t2_1(0, 0) + t2_1(1, 1) + t2_1(2, 2)),
                "T2(i,i)");
}