// Copyright (c) 2022, ETH Zurich and UNC Chapel Hill.
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// Author: Johannes L. Schoenberger (jsch-at-demuc-dot-de)

#define TEST_NAME "mvs/mat_test"
#include "util/testing.h"

#include "mvs/mat.h"

using namespace colmap::mvs;

BOOST_AUTO_TEST_CASE(TestEmpty) {
  Mat<int> mat;
  BOOST_CHECK_EQUAL(mat.GetWidth(), 0);
  BOOST_CHECK_EQUAL(mat.GetHeight(), 0);
  BOOST_CHECK_EQUAL(mat.GetDepth(), 0);
  BOOST_CHECK_EQUAL(mat.GetNumBytes(), 0);
}

BOOST_AUTO_TEST_CASE(TestNonEmpty) {
  Mat<int> mat(1, 2, 3);
  BOOST_CHECK_EQUAL(mat.GetWidth(), 1);
  BOOST_CHECK_EQUAL(mat.GetHeight(), 2);
  BOOST_CHECK_EQUAL(mat.GetDepth(), 3);
  BOOST_CHECK_EQUAL(mat.GetNumBytes(), 24);
}

BOOST_AUTO_TEST_CASE(TestGetSet) {
  Mat<int> mat(1, 2, 3);

  BOOST_CHECK_EQUAL(mat.GetNumBytes(), 24);

  mat.Set(0, 0, 0, 1);
  mat.Set(0, 0, 1, 2);
  mat.Set(0, 0, 2, 3);
  mat.Set(1, 0, 0, 4);
  mat.Set(1, 0, 1, 5);
  mat.Set(1, 0, 2, 6);

  BOOST_CHECK_EQUAL(mat.Get(0, 0, 0), 1);
  BOOST_CHECK_EQUAL(mat.Get(0, 0, 1), 2);
  BOOST_CHECK_EQUAL(mat.Get(0, 0, 2), 3);
  BOOST_CHECK_EQUAL(mat.Get(1, 0, 0), 4);
  BOOST_CHECK_EQUAL(mat.Get(1, 0, 1), 5);
  BOOST_CHECK_EQUAL(mat.Get(1, 0, 2), 6);

  int slice[3];
  mat.GetSlice(0, 0, slice);
  BOOST_CHECK_EQUAL(slice[0], 1);
  BOOST_CHECK_EQUAL(slice[1], 2);
  BOOST_CHECK_EQUAL(slice[2], 3);
  mat.GetSlice(1, 0, slice);
  BOOST_CHECK_EQUAL(slice[0], 4);
  BOOST_CHECK_EQUAL(slice[1], 5);
  BOOST_CHECK_EQUAL(slice[2], 6);
}

BOOST_AUTO_TEST_CASE(TestFill) {
  Mat<int> mat(1, 2, 3);

  BOOST_CHECK_EQUAL(mat.GetNumBytes(), 24);

  mat.Fill(10);
  mat.Set(0, 0, 0, 10);
  mat.Set(0, 0, 1, 10);
  mat.Set(0, 0, 2, 10);
  mat.Set(1, 0, 0, 10);
  mat.Set(1, 0, 1, 10);
  mat.Set(1, 0, 2, 10);
}