main/basegfx/test/basegfxtools.cxx

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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_basegfx.hxx"
// autogenerated file with codegen.pl

#include "preextstl.h"
#include "gtest/gtest.h"
#include "postextstl.h"

#include <basegfx/tools/keystoplerp.hxx>
#include <basegfx/numeric/ftools.hxx>

#include <boost/tuple/tuple.hpp>

using namespace ::basegfx;
using namespace ::boost::tuples;

namespace basegfxtools
{

class KeyStopLerpTest : public ::testing::Test
{
protected:
    tools::KeyStopLerp maKeyStops;

    static std::vector<double> getTestVector()
    {
        std::vector<double> aStops(3);
        aStops[0] = 0.1;
        aStops[1] = 0.5;
        aStops[2] = 0.9;
        return aStops;
    }

public:
    KeyStopLerpTest() :
        maKeyStops(getTestVector())
    {}

    virtual void SetUp()
    {}

    virtual void TearDown()
    {}
};

TEST_F(KeyStopLerpTest, test)
{
    double fAlpha;
    std::ptrdiff_t nIndex;

    tie(nIndex,fAlpha) = maKeyStops.lerp(-1.0);
    ASSERT_TRUE(nIndex==0 && fAlpha==0.0) << "-1.0";

    tie(nIndex,fAlpha) = maKeyStops.lerp(0.1);
    ASSERT_TRUE(nIndex==0 && fAlpha==0.0) << "0.1";

    tie(nIndex,fAlpha) = maKeyStops.lerp(0.3);
    ASSERT_TRUE(nIndex==0 && fTools::equal(fAlpha,0.5)) << "0.3";

    tie(nIndex,fAlpha) = maKeyStops.lerp(0.5);
    ASSERT_TRUE(nIndex==0 && fTools::equal(fAlpha,1.0)) << "0.5";

    tie(nIndex,fAlpha) = maKeyStops.lerp(0.51);
    ASSERT_TRUE(nIndex==1 && fTools::equal(fAlpha,0.025)) << "0.51";

    tie(nIndex,fAlpha) = maKeyStops.lerp(0.9);
    ASSERT_TRUE(nIndex==1 && fTools::equal(fAlpha,1.0)) << "0.51";

    tie(nIndex,fAlpha) = maKeyStops.lerp(1.0);
    ASSERT_TRUE(nIndex==1 && fAlpha==1.0) << "0.51";
}

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

} // namespace basegfxtools