#pragma region CPL License
/*
Nuclex Native Framework
Copyright (C) 2002-2015 Nuclex Development Labs

This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.

You should have received a copy of the IBM Common Public
License along with this library
*/
#pragma endregion // CPL License

// If the library is compiled as a DLL, this ensures symbols are exported
#define NUCLEX_GEOMETRY_SOURCE 1

#include "Nuclex/Geometry/Areas/Rectangle2.h"
#include <gtest/gtest.h>

namespace Nuclex { namespace Geometry { namespace Areas {

  // ------------------------------------------------------------------------------------------- //

  TEST(Rectangle2Test, ParameterConstructorAssignsValues) {
    Rectangle2<float> rectangle(
      Point2<float>(1.1f, 2.2f), Point2<float>(3.3f, 4.4f)
    );

    EXPECT_EQ(1.1f, rectangle.Min.X);
    EXPECT_EQ(2.2f, rectangle.Min.Y);
    EXPECT_EQ(3.3f, rectangle.Max.X);
    EXPECT_EQ(4.4f, rectangle.Max.Y);
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(Rectangle2Test, CenterOfRectangleCanBeDetermined) {
    Rectangle2<float> rectangle(
      Point2<float>(1.1f, 2.2f), Point2<float>(3.3f, 6.6f)
    );

    Point2<float> center = rectangle.GetCenter();
    EXPECT_EQ(2.2f, center.X);
    EXPECT_EQ(4.4f, center.Y);
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(Rectangle2Test, RectangleSurfaceAreaCanBeCalculated) {
    Rectangle2<float> rectangle(
      Point2<float>(1.1f, 2.2f), Point2<float>(3.3f, 6.6f)
    );

    EXPECT_FLOAT_EQ(9.68f, rectangle.GetArea());
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(Rectangle2Test, RectanglePerimeterCanBeCalculated) {
    Rectangle2<float> rectangle(
      Point2<float>(1.1f, 2.2f), Point2<float>(3.3f, 6.6f)
    );

    EXPECT_FLOAT_EQ(13.2f, rectangle.GetPerimeter());
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(Rectangle2Test, RectanglesCanBeShiftedByCoordinates) {
    Rectangle2<float> rectangle(
      Point2<float>(1.1f, 2.2f), Point2<float>(3.3f, 6.6f)
    );
    rectangle.ShiftBy(10.0f, 100.0f);

    EXPECT_EQ(11.1f, rectangle.Min.X);
    EXPECT_EQ(102.2f, rectangle.Min.Y);
    EXPECT_EQ(13.3f, rectangle.Max.X);
    EXPECT_EQ(106.6f, rectangle.Max.Y);
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(Rectangle2Test, RectanglesCanBeShiftedByVectors) {
    Rectangle2<float> rectangle(
      Point2<float>(1.1f, 2.2f), Point2<float>(3.3f, 6.6f)
    );
    rectangle.ShiftBy(Vector2<float>(100.0f, 10.0f));

    EXPECT_EQ(101.1f, rectangle.Min.X);
    EXPECT_EQ(12.2f, rectangle.Min.Y);
    EXPECT_EQ(103.3f, rectangle.Max.X);
    EXPECT_EQ(16.6f, rectangle.Max.Y);
  }

  // ------------------------------------------------------------------------------------------- //

}}} // namespace Nuclex::Geometry::Areas