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#include <pcl/test/gtest.h>
#include <pcl/pcl_config.h>
#include <pcl/pcl_tests.h>
#include <pcl/common/eigen.h>
#include <vector>

using namespace pcl::test;

std::vector<float> v1, v2;
Eigen::Vector3f ev1, ev2;

TEST(MACROS, expect_eq_vectors_macro)
{
  for (std::size_t i = 0; i < 3; i++)
  {
    float val = static_cast<float> (i) * 1.5f;
    v1.push_back (val);
    v2.push_back (val);
    ev1[i] = val;
    ev2[i] = val;
  }

  EXPECT_EQ_VECTORS (v1, v2);
  EXPECT_EQ_VECTORS (ev1, ev2);
  EXPECT_EQ_VECTORS (v1, ev2);
  EXPECT_EQ_VECTORS (ev1, v2);
//  equal_vectors<std::vector<float>, std::vector<float> >(v1, v2);
}

TEST(MACROS, expect_near_vectors_macro)
{
  v1.clear ();
  v2.clear ();
  constexpr float epsilon = 1e-5f;
  for (std::size_t i = 0; i < 3; i++)
  {
    float val = static_cast<float> (i) * 1.5f;
    v1.push_back (val);
    v2.push_back (val + epsilon);
    ev1[i] = val;
    ev2[i] = val + epsilon;
  }
  EXPECT_NEAR_VECTORS (v1, v2, 2*epsilon);
  EXPECT_NEAR_VECTORS (ev1, ev2, 2*epsilon);
  EXPECT_NEAR_VECTORS (v1, ev2, 2*epsilon);
  EXPECT_NEAR_VECTORS (ev1, v2, 2*epsilon);
}

TEST(MACROS, PCL_VERSION_COMPARE)
{
  // PCL_MAJOR_VERSION.PCL_MINOR_VERSION.PCL_REVISION_VERSION : latest released PCL version

  // Current version should be:
  //   * equal (if release version is being tested)
  //   * greater (if development version is being tested)
#if PCL_VERSION_COMPARE(>=, PCL_MAJOR_VERSION, PCL_MINOR_VERSION, PCL_REVISION_VERSION)
  SUCCEED();
#else
  FAIL();
#endif

  // If current version is greater, then it must be a development version
#if PCL_VERSION_COMPARE(>, PCL_MAJOR_VERSION, PCL_MINOR_VERSION, PCL_REVISION_VERSION)
  EXPECT_TRUE(PCL_DEV_VERSION);
#else
  EXPECT_FALSE(PCL_DEV_VERSION);
#endif

  // If current version is equal, then it must be a release version (not development)
#if PCL_VERSION_COMPARE(==, PCL_MAJOR_VERSION, PCL_MINOR_VERSION, PCL_REVISION_VERSION)
  EXPECT_FALSE(PCL_DEV_VERSION);
#else
  EXPECT_TRUE(PCL_DEV_VERSION);
#endif

  // Pretend that current version is 1.7.2-dev
#undef PCL_MAJOR_VERSION
#undef PCL_MINOR_VERSION
#undef PCL_REVISION_VERSION
#undef PCL_DEV_VERSION
#define PCL_MAJOR_VERSION 1
#define PCL_MINOR_VERSION 7
#define PCL_REVISION_VERSION 2
#define PCL_DEV_VERSION 1
  // Should be greater than these:
  EXPECT_TRUE(PCL_VERSION_COMPARE(>, 1, 7, 2));
  EXPECT_TRUE(PCL_VERSION_COMPARE(>, 1, 7, 1));
  EXPECT_TRUE(PCL_VERSION_COMPARE(>, 1, 6, 3));
  EXPECT_TRUE(PCL_VERSION_COMPARE(>, 0, 8, 4));
  // Should be less than these:
  EXPECT_TRUE(PCL_VERSION_COMPARE(<, 1, 7, 3));
  EXPECT_TRUE(PCL_VERSION_COMPARE(<, 1, 8, 0));
  EXPECT_TRUE(PCL_VERSION_COMPARE(<, 2, 0, 0));

  // Now pretend that current version is 1.7.2 (release)
#undef PCL_DEV_VERSION
#define PCL_DEV_VERSION 0
  // Should be greater than these:
  EXPECT_TRUE(PCL_VERSION_COMPARE(>, 1, 7, 1));
  EXPECT_TRUE(PCL_VERSION_COMPARE(>, 1, 6, 3));
  EXPECT_TRUE(PCL_VERSION_COMPARE(>, 0, 8, 4));
  // Should be equal to itself
  EXPECT_TRUE(PCL_VERSION_COMPARE(==, 1, 7, 2));
  // Should be less than these:
  EXPECT_TRUE(PCL_VERSION_COMPARE(<, 1, 7, 3));
  EXPECT_TRUE(PCL_VERSION_COMPARE(<, 1, 8, 0));
  EXPECT_TRUE(PCL_VERSION_COMPARE(<, 2, 0, 0));
}

int 
main (int argc, char** argv)
{
#if ((PCL_MAJOR_VERSION == 1) && (PCL_MINOR_VERSION == 4))
  std::cerr << "1.4.0 detected" << std::endl;
#elif ((PCL_MAJOR_VERSION == 1) && (PCL_MINOR_VERSION == 3))
  std::cerr << "1.3.0 detected" << std::endl;
#endif
  testing::InitGoogleTest (&argc, argv);
  return (RUN_ALL_TESTS ());
}
