hypervector/hypervector_test.cpp at master · mporsch/hypervector · GitHub

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#include "hypervector.h"

#include <iostream>
#include <string>

hypervector<std::string, 3> reference(
    std::initializer_list<
      std::initializer_list<
        std::initializer_list<std::string>>> init) {
  auto hvec = hypervector<std::string, 3>(std::move(init));
  return hvec;
}

hypervector<std::string, 4> reference_iota(
    size_t size0,
    size_t size1,
    size_t size2,
    size_t size3) {
  auto hvec = hypervector<std::string, 4>(size0, size1, size2, size3);
  int i = 0;
  for (auto& v : hvec) {
    v = std::to_string(i++);
  }
  return hvec;
}

hypervector<std::string, 4> reference_iota_reverse(
    size_t size0,
    size_t size1,
    size_t size2,
    size_t size3) {
  auto hvec = hypervector<std::string, 4>(size0, size1, size2, size3);
  int i = size0 * size1* size2 * size3;
  for (auto& v : hvec) {
    v = std::to_string(--i);
  }
  return hvec;
}

int main(int /*argc*/, char** /*argv*/) {
  bool success = true;

  { // test the different constructors, assign() and resize()
    {
      hypervector<std::string, 3> hvec;
      hvec.reserve(3, 3, 3);
      success &= (hvec.size() == 0);
      std::cout << "construct():\n" << hvec << "\n\n";
    }

    {
      hypervector<std::string, 3> hvec(1, 2, 3);
      hvec.reserve(3 * 3 * 3);
      success &= (hvec.sizeOf<0>() == 1);
      success &= (hvec.sizeOf<1>() == 2);
      success &= (hvec.sizeOf<2>() == 3);
      success &= (hvec.size() == 1 * 2 * 3);
      std::cout << "construct(1, 2, 3):\n" << hvec << "\n\n";
    }

    hypervector<std::string, 3> hvec;
    hvec.reserve(3, 3, 3);

    hvec.assign(1, 2, 3, "ho");
    success &= (hvec.size() == 1 * 2 * 3);
    success &= (hvec == reference({{
      {"ho", "ho", "ho"},
      {"ho", "ho", "ho"}}}));
    std::cout << "construct(1, 2, 3, \"ho\"):\n" << hvec << "\n\n";

    hvec.assign(3, 2, 1, "hi");
    success &= (hvec.size() == 3 * 2 * 1);
    success &= (hvec == reference({
      {{"hi"}, {"hi"}},
      {{"hi"}, {"hi"}},
      {{"hi"}, {"hi"}}}));
    std::cout << "assign(3, 2, 1, \"hi\"):\n" << hvec << "\n\n";

    hvec.resize(1, 1, 1, "he");
    success &= (hvec.size() == 1 * 1 * 1);
    success &= (hvec == reference({{{"hi"}}}));
    std::cout << "resize(1, 1, 1, \"he\"):\n" << hvec << "\n\n";

    hvec.resize(2, 2, 2, "ha");
    success &= (hvec.size() == 2 * 2 * 2);
    success &= (hvec == reference({
      {{"hi", "ha"}, {"ha", "ha"}},
      {{"ha", "ha"}, {"ha", "ha"}}}));
    std::cout << "resize(2, 2, 2, \"ha\"):\n" << hvec << "\n\n";

    hvec.resize(3, 3, 3);
    success &= (hvec.size() == 3 * 3 * 3);
    success &= (hvec == reference({
      {{"hi", "ha", "ha"},
       {"ha", "ha", "ha"},
       {"ha", "ha", ""}},
      {{"", "", ""},
       {"", "", ""},
       {"", "", ""}},
      {{"", "", ""},
       {"", "", ""},
       {"", "", ""}}}));
    std::cout << "resize(3, 3, 3):\n" << hvec << "\n\n";

    {
      auto hvec2 = std::move(hvec);
      success &= (hvec2.size() == 3 * 3 * 3);
      hvec = hvec2;
      success &= (hvec.size() == hvec2.size());

      hvec.clear();
      success &= (hvec.size() == 0);

      using std::swap;
      swap(hvec, hvec2);
      success &= (hvec2.size() == 0);
      swap(hvec2, hvec);
      success &= (hvec.size() == 0);

      hvec = std::move(hvec2);
    }

    hvec.resize(3, 3, 0);
    success &= (hvec.size() == 3 * 3 * 0);
    std::cout << "resize(3, 3, 0):\n" << hvec << "\n\n";

    hvec.resize(3, 0, 3);
    success &= (hvec.size() == 3 * 0 * 3);
    std::cout << "resize(3, 0, 3):\n" << hvec << "\n\n";

    hvec.assign(0, 3, 3, "oh");
    success &= (hvec.size() == 0 * 3 * 3);
    std::cout << "assign(0, 3, 3, \"oh\"):\n" << hvec << "\n\n";
  }

  {
    int test[4][3][2];
    hypervector<int, 3> hvec(4, 3, 2);

    int i = 0;
    for (size_t x = 0; x < 4; ++x) {
      for (size_t y = 0; y < 3; ++y) {
        for (size_t z = 0; z < 2; ++z) {
          test[x][y][z] = i;
          hvec[x][y][z] = i++;

          // test operator[] and at()
          success &= (test[x][y][z] == hvec[x][y][z]);
          success &= (test[x][y][z] == hvec.at(x, y, z));
        }
      }
    }

    { // test begin() and end() globally
      auto firstArray = &test[0][0][0];
      const auto lastArray = firstArray + 4 * 3 * 2;
      auto firstHvec = std::begin(hvec);
      const auto lastHvec = std::end(hvec);
      for (; firstArray != lastArray && firstHvec != lastHvec; ++firstArray, ++firstHvec)
        success &= (*firstArray == *firstHvec);
    }

    { // test begin() and end() on (const) subdimension
      auto const subd = const_cast<const hypervector<int, 3>&>(hvec)[3];
      static_assert(std::is_convertible<decltype(hvec[3]), decltype(subd)>::value, "const type mismatch");
      auto firstArray = &test[3][0][0];
      const auto lastArray = firstArray + 3 * 2;
      auto firstHvec = std::begin(subd);
      const auto lastHvec = std::end(subd);
      for (; firstArray != lastArray && firstHvec != lastHvec; ++firstArray, ++firstHvec)
        success &= (*firstArray == *firstHvec);
    }
  }

  { // fool around with operator[] and at()
    hypervector<std::string, 4> hvec(5, 4, 3, 2, "0");
    int i = 0;
    for (size_t w = 0; w < hvec.sizeOf<0>(); ++w)
      for (size_t x = 0; x < hvec.sizeOf<1>(); ++x)
        for (size_t y = 0; y < hvec.sizeOf<2>(); ++y)
          for (size_t z = 0; z < hvec.sizeOf<3>(); ++z)
            hvec.at(w, x, y, z) = std::to_string(i++);
    success &= (hvec == reference_iota(5, 4, 3, 2));
    std::cout << "at(w, x, y, z):\n" << hvec << "\n\n";

    for (size_t w = 0; w < hvec.sizeOf<0>(); ++w)
        for (size_t x = 0; x < hvec.sizeOf<1>(); ++x)
          for (size_t y = 0; y < hvec.sizeOf<2>(); ++y)
            for (size_t z = 0; z < hvec.sizeOf<3>(); ++z)
              hvec[w][x][y][z] = std::to_string(--i);
    success &= (hvec == reference_iota_reverse(5, 4, 3, 2));
    std::cout << "operator[w][x][y][z]:\n"  << hvec << "\n\n";

    hypervector<std::string, 2> slice = hvec[4][3];
    success &= (slice == reference_iota_reverse(5, 4, 3, 2)[4][3]);
    std::cout << "slice [4][3] of [5][4][3][2]:\n" << slice << "\n\n";
  }

  return (success ? EXIT_SUCCESS : EXIT_FAILURE);
}