bounds_test.cpp

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#include <gtest/gtest.h>
#include <nav_core2/bounds.h>

using nav_core2::Bounds;
using nav_core2::UIntBounds;

TEST(Bounds, test_bounds_simple)
{
  Bounds b;
  EXPECT_TRUE(b.isEmpty());

  b.touch(5.0, 6.0);
  EXPECT_EQ(5.0, b.getMinX());
  EXPECT_EQ(5.0, b.getMinX());
  EXPECT_EQ(5.0, b.getMaxX());
  EXPECT_EQ(6.0, b.getMinY());
  EXPECT_EQ(6.0, b.getMaxY());
  EXPECT_TRUE(b.contains(5.0, 6.0));
  EXPECT_FALSE(b.contains(5.5, 6.0));
  EXPECT_FALSE(b.contains(5.5, 4.0));
  EXPECT_FALSE(b.isEmpty());

  Bounds b2 = b;
  EXPECT_EQ(5.0, b2.getMinX());
  EXPECT_EQ(5.0, b2.getMaxX());
  EXPECT_EQ(6.0, b2.getMinY());
  EXPECT_EQ(6.0, b2.getMaxY());

  b.reset();
  EXPECT_EQ(5.0, b2.getMinX());
  EXPECT_EQ(5.0, b2.getMaxX());
  EXPECT_EQ(6.0, b2.getMinY());
  EXPECT_EQ(6.0, b2.getMaxY());
  EXPECT_FALSE(b.contains(5.0, 6.0));
  EXPECT_FALSE(b.contains(5.5, 6.0));
  EXPECT_TRUE(b2.contains(5.0, 6.0));
  EXPECT_FALSE(b.contains(5.5, 6.0));
  EXPECT_TRUE(b.isEmpty());

  Bounds b3;
  b3.touch(1.0, 5.0);
  b3.touch(4.0, 2.0);
  EXPECT_TRUE(b3.contains(3.0, 3.0));
  EXPECT_FALSE(b3.contains(0.0, 3.0));
  EXPECT_FALSE(b3.contains(5.0, 3.0));
  EXPECT_FALSE(b3.contains(3.0, 6.0));
  EXPECT_FALSE(b3.contains(3.0, 1.0));
}

TEST(Bounds, test_dimensions)
{
  UIntBounds empty;
  UIntBounds square(0, 0, 5, 5);
  UIntBounds rectangle(1, 4, 3, 15);
  EXPECT_EQ(empty.getWidth(), 0u);
  EXPECT_EQ(empty.getHeight(), 0u);

  EXPECT_EQ(square.getWidth(), 6u);
  EXPECT_EQ(square.getHeight(), 6u);

  EXPECT_EQ(rectangle.getWidth(), 3u);
  EXPECT_EQ(rectangle.getHeight(), 12u);
}

TEST(Bounds, test_bounds_overlap)
{
  UIntBounds b0(0, 0, 5, 5);
  UIntBounds b1(0, 0, 5, 5);
  UIntBounds b2(0, 0, 3, 3);
  UIntBounds b3(3, 0, 4, 4);
  UIntBounds b4(4, 0, 4, 4);
  UIntBounds b5(1, 4, 3, 15);
  UIntBounds b6(10, 10, 10, 10);
  EXPECT_TRUE(b0.overlaps(b0));
  EXPECT_TRUE(b0.overlaps(b1));
  EXPECT_TRUE(b0.overlaps(b2));
  EXPECT_TRUE(b2.overlaps(b0));
  EXPECT_TRUE(b0.overlaps(b3));
  EXPECT_TRUE(b2.overlaps(b3));
  EXPECT_FALSE(b2.overlaps(b4));
  EXPECT_TRUE(b0.overlaps(b5));
  EXPECT_TRUE(b5.overlaps(b0));
  EXPECT_FALSE(b0.overlaps(b6));
  EXPECT_FALSE(b6.overlaps(b0));
}

int main(int argc, char **argv)
{
  testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
}