8270eb5d56
Change-Id: Ief95f111350808f010539bb733a553007d30a9df Reviewed-on: https://gerrit.libreoffice.org/c/core/+/152006 Reviewed-by: Tomaž Vajngerl <quikee@gmail.com> Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
88 lines
3.1 KiB
C++
88 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <cppunit/TestAssert.h>
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#include <cppunit/TestFixture.h>
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#include <cppunit/extensions/HelperMacros.h>
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#include <basegfx/polygon/b2dpolypolygon.hxx>
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#include <basegfx/polygon/b2dtrapezoid.hxx>
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#include <random>
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namespace basegfx
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{
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class b2dpolypolygon : public CppUnit::TestFixture
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{
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public:
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// insert your test code here.
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void testTrapezoidHelper()
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{
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B2DPolygon aPolygon;
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// provoke the PointBlockAllocator to exercise the freeIfLast path
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for (int i = 0; i < 16 * 10; i++)
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{
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B2DPoint aPoint(getRandomOrdinal(1000), getRandomOrdinal(1000));
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aPolygon.append(aPoint);
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}
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// scatter some duplicate points in to stress things more.
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for (int i = 0; i < 16 * 10; i++)
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{
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aPolygon.insert(getRandomOrdinal(aPolygon.count() - 1),
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aPolygon.getB2DPoint(getRandomOrdinal(aPolygon.count() - 1)));
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}
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B2DPolygon aPolygonOffset;
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// duplicate the polygon and offset it slightly.
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for (size_t i = 0; i < aPolygon.count(); i++)
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{
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B2DPoint aPoint(aPolygon.getB2DPoint(i));
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aPoint += B2DPoint(0.5 - getRandomOrdinal(1), 0.5 - getRandomOrdinal(1));
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aPolygonOffset.append(aPoint);
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}
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B2DPolyPolygon aPolyPolygon;
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aPolyPolygon.append(aPolygon);
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aPolyPolygon.append(aPolygonOffset);
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B2DTrapezoidVector aVector;
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basegfx::utils::trapezoidSubdivide(aVector, aPolyPolygon);
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CPPUNIT_ASSERT_MESSAGE("more than zero sub-divided trapezoids", !aVector.empty());
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}
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std::mt19937 rng; // Standard mersenne_twister_engine
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/// Gets a random ordinal [0,n)
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::std::size_t getRandomOrdinal(const ::std::size_t n)
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{
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std::uniform_int_distribution<size_t> dist(0, n - 1);
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return dist(rng);
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}
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// Change the following lines only, if you add, remove or rename
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// member functions of the current class,
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// because these macros are need by auto register mechanism.
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CPPUNIT_TEST_SUITE(b2dpolypolygon);
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CPPUNIT_TEST(testTrapezoidHelper);
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CPPUNIT_TEST_SUITE_END();
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}; // class b2dpolypolygon
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} // namespace basegfx
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CPPUNIT_TEST_SUITE_REGISTRATION(basegfx::b2dpolypolygon);
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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