#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/Disc2.h"
#include <gtest/gtest.h>

namespace Nuclex { namespace Geometry { namespace Areas {

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

  TEST(Disc2Test, ParameterConstructorAssignsValues) {
    Disc2<float> disc(Point2<float>(1.1f, 2.2f), 10.0f);

    EXPECT_EQ(1.1f, disc.Center.X);
    EXPECT_EQ(2.2f, disc.Center.Y);
    EXPECT_EQ(10.0f, disc.Radius);
  }

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

  TEST(Disc2Test, CenterOfDiscCanBeDetermined) {
    Disc2<float> disc(Point2<float>(3.3f, 4.4f), 10.0f);

    Point2<float> center = disc.GetCenter();
    EXPECT_EQ(3.3f, center.X);
    EXPECT_EQ(4.4f, center.Y);
  }

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

  TEST(Disc2Test, DiscSurfaceAreaCanBeCalculated) {
    Disc2<float> disc(Point2<float>(1.1f, 2.2f), 20.0f);

    EXPECT_FLOAT_EQ(1256.6370614359172953850573533118f, disc.GetArea());
  }

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

  TEST(Disc2Test, DiscPerimeterCanBeCalculated) {
    Disc2<float> disc(Point2<float>(3.3f, 4.4f), 30.0f);

    EXPECT_FLOAT_EQ(188.49555921538759430775860299677f, disc.GetPerimeter());
  }

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

  TEST(Disc2Test, DiscsCanBeShiftedByCoordinates) {
    Disc2<float> disc(Point2<float>(1.1f, 2.2f), 20.0f);
    disc.ShiftBy(10.0f, 100.0f);

    EXPECT_EQ(11.1f, disc.Center.X);
    EXPECT_EQ(102.2f, disc.Center.Y);
    EXPECT_EQ(20.0f, disc.Radius);
  }

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

  TEST(Disc2Test, DiscsCanBeShiftedByVectors) {
    Disc2<float> disc(Point2<float>(3.3f, 4.4f), 30.0f);
    disc.ShiftBy(Vector2<float>(100.0f, 10.0f));

    EXPECT_EQ(103.3f, disc.Center.X);
    EXPECT_EQ(14.4f, disc.Center.Y);
    EXPECT_EQ(30.0f, disc.Radius);
  }

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

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