// This is core/vnl/tests/test_sym_matrix.cxx
#include <iostream>
#include "vnl/vnl_sym_matrix.h"
#include "testlib/testlib_test.h"

static void
test_int()
{
  std::cout << "*****************************\n"
            << "Testing Symmetric Matrix<int>\n"
            << "*****************************\n";

  //////////////////
  // CONSTRUCTORS //
  //////////////////

  vnl_sym_matrix<int> sm1(2);
  TEST("\n\nvnl_sym_matrix<int> m1(2)", (sm1.rows() == 2 && sm1.columns() == 2), true);
  vnl_sym_matrix<int> sm2(2, 2);
  TEST(
    "\n\nvnl_sym_matrix<int> sm2(2,2)", (sm2(0, 0) == 2 && sm2(0, 1) == 2 && sm2(1, 0) == 2 && sm2(1, 1) == 2), true);
  const vnl_matrix<int> ma1(2, 2, 3);
  const vnl_sym_matrix<int> sm3(ma1);
  TEST("\n\n(const vnl_sym_matrix) sm3", (sm3(0, 0) == 3 && sm3(0, 1) == 3 && sm3(1, 0) == 3 && sm3(1, 1) == 3), true);
  std::cout << "sm3\n" << sm3 << std::endl << std::endl;

  int td[] = { 1, 2, 3 };
  vnl_sym_matrix<int> sm4(td, 2);
  std::cout << "sm4\n" << sm4 << std::endl << std::endl;
  vnl_matrix<int> ma2 = sm4.as_matrix();
  TEST("(const vnl_matrix) ma2", (ma2(0, 0) == 1 && ma2(0, 1) == 2 && ma2(1, 0) == 2 && ma2(1, 1) == 3), true);
  std::cout << "ma2\n" << ma2 << std::endl << std::endl;
  TEST("operator== ", ma2 == sm4 && !(ma2 == sm3), true);
  std::cout << "sm3\n" << sm3 << std::endl << std::endl;

  int td5[] = { 0, 0, 0 };
  vnl_sym_matrix<int> sm5(td5, 2);
  swap(sm5, sm4);
  TEST("swap",
       (sm4(0, 0) == 0 && sm4(0, 1) == 0 && sm4(1, 0) == 0 && sm4(1, 1) == 0) &&
         (sm5(0, 0) == 1 && sm5(0, 1) == 2 && sm5(1, 0) == 2 && sm5(1, 1) == 3),
       true);

  vnl_sym_matrix<int> sm6(3, 0);
  sm6.update(sm5, 1);
  TEST("update",
       (sm6(0, 0) == 0 && sm6(0, 1) == 0 && sm6(0, 2) == 0 && sm6(1, 0) == 0 && sm6(1, 1) == 1 && sm6(1, 2) == 2 &&
        sm6(2, 0) == 0 && sm6(2, 1) == 2 && sm6(2, 2) == 3),
       true);
  std::cout << "sm6\n" << sm6 << std::endl << std::endl;

  sm5 = sm6;
  TEST("operator =",
       (sm5(0, 0) == 0 && sm5(0, 1) == 0 && sm5(0, 2) == 0 && sm5(1, 0) == 0 && sm5(1, 1) == 1 && sm5(1, 2) == 2 &&
        sm5(2, 0) == 0 && sm5(2, 1) == 2 && sm5(2, 2) == 3),
       true);
  std::cout << "sm5\n" << sm5 << std::endl << std::endl;

  TEST("operator ==", (sm5 == sm6 && !(sm5 == sm4) && !(sm4 == sm3)), true);
  std::cout << "sm4 sm3\n" << sm4 << std::endl << sm3 << std::endl << std::endl;

  vnl_vector<int> v1(2, 5);
  sm5.set_half_row(v1, 1);
  TEST("set_half_row",
       (sm5(0, 0) == 0 && sm5(0, 1) == 5 && sm5(0, 2) == 0 && sm5(1, 0) == 5 && sm5(1, 1) == 5 && sm5(1, 2) == 2 &&
        sm5(2, 0) == 0 && sm5(2, 1) == 2 && sm5(2, 2) == 3),
       true);
  std::cout << "sm5\n" << sm5 << std::endl << std::endl;

  ///////////////
  // ACCESSORS //
  ///////////////

#if VNL_CONFIG_CHECK_BOUNDS

  {
    // Get
    bool exceptionThrownAndCaught = false;
    try
    {
      sm1.get(0, 25);
    } // Raise out of bounds exception.
    catch (...)
    {
      exceptionThrownAndCaught = true;
    }
    TEST("Out of bounds get(0,25)", exceptionThrownAndCaught, true);

    exceptionThrownAndCaught = false;
    try
    {
      sm1.get(25, 0);
    } // Raise out of bounds exception.
    catch (...)
    {
      exceptionThrownAndCaught = true;
    }
    TEST("Out of bounds get(25,0)", exceptionThrownAndCaught, true);

    exceptionThrownAndCaught = false;
    try
    {
      sm1.get(25, 25);
    } // Raise out of bounds exception.
    catch (...)
    {
      exceptionThrownAndCaught = true;
    }
    TEST("Out of bounds get(25,25)", exceptionThrownAndCaught, true);

    // Put
    exceptionThrownAndCaught = false;
    try
    {
      sm1.put(0, 25, 0);
    } // Raise out of bounds exception.
    catch (...)
    {
      exceptionThrownAndCaught = true;
    }
    TEST("Out of bounds put(0,25,0)", exceptionThrownAndCaught, true);

    exceptionThrownAndCaught = false;
    try
    {
      sm1.put(25, 0, 0);
    } // Raise out of bounds exception.
    catch (...)
    {
      exceptionThrownAndCaught = true;
    }
    TEST("Out of bounds put(25,0,0)", exceptionThrownAndCaught, true);

    exceptionThrownAndCaught = false;
    try
    {
      sm1.put(25, 25, 0);
    } // Raise out of bounds exception.
    catch (...)
    {
      exceptionThrownAndCaught = true;
    }
    TEST("Out of bounds put(25,25,0)", exceptionThrownAndCaught, true);
  }

#endif
}


static void
test_sym_matrix()
{
  test_int();
}

TESTMAIN(test_sym_matrix);
