vcl: introduce some OutputDevice mapping tests specifically for fn5()
Change-Id: I6b5327dd9cdc584baa4df323b781e4ebe6135b34 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/196220 Tested-by: Jenkins Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
This commit is contained in:
Christopher Sherlock
committed by
Tomaž Vajngerl
Tomaž Vajngerl
parent
f86fe0bb07
commit
4b4065ac96
@@ -0,0 +1,44 @@
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# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
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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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$(eval $(call gb_CppunitTest_CppunitTest,vcl_map))
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$(eval $(call gb_CppunitTest_set_include,vcl_map,\
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-I$(SRCDIR)/vcl/inc \
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$$(INCLUDE) \
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))
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$(eval $(call gb_CppunitTest_add_exception_objects,vcl_map, \
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vcl/qa/cppunit/vclmaptest \
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))
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$(eval $(call gb_CppunitTest_use_libraries,vcl_map, \
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test \
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tl \
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unotest \
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vcl \
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))
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$(eval $(call gb_CppunitTest_use_externals,vcl_map, \
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boost_headers \
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))
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$(eval $(call gb_CppunitTest_use_sdk_api,vcl_map))
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$(eval $(call gb_CppunitTest_use_ure,vcl_map))
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$(eval $(call gb_CppunitTest_use_vcl,vcl_map))
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$(eval $(call gb_CppunitTest_use_components,vcl_map,\
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configmgr/source/configmgr \
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i18npool/util/i18npool \
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))
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$(eval $(call gb_CppunitTest_use_configuration,vcl_map))
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# vim: set noet sw=4 ts=4:
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@@ -219,6 +219,7 @@ $(eval $(call gb_Module_add_targets,vcl,\
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endif
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$(eval $(call gb_Module_add_check_targets,vcl,\
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CppunitTest_vcl_map \
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CppunitTest_vcl_drawmode \
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CppunitTest_vcl_lifecycle \
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CppunitTest_vcl_bitmap_test \
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@@ -0,0 +1,132 @@
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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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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#include <cppunit/TestFixture.h>
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#include <cppunit/extensions/HelperMacros.h>
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#include <cppunit/plugin/TestPlugIn.h>
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#include <tools/fract.hxx>
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#include <vcl/outdev.hxx>
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#include <vcl/virdev.hxx>
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#include <vcl/print.hxx>
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namespace
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{
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class VclMapTest : public CppUnit::TestFixture
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{
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public:
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CPPUNIT_TEST_SUITE(VclMapTest);
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CPPUNIT_TEST(testIdentity);
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CPPUNIT_TEST(testSimpleUnitConversion);
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CPPUNIT_TEST(testFractionScaling);
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CPPUNIT_TEST(testIntermediateOverflow);
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CPPUNIT_TEST(testRoundingBehavior);
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CPPUNIT_TEST_SUITE_END();
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public:
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void testIdentity()
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{
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// Test that converting to the same MapMode changes nothing
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MapMode aMode(MapUnit::MapMM);
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Point aPt(1234, 5678);
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Point aResult = OutputDevice::LogicToLogic(aPt, aMode, aMode);
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CPPUNIT_ASSERT_EQUAL(tools::Long(1234), aResult.X());
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CPPUNIT_ASSERT_EQUAL(tools::Long(5678), aResult.Y());
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}
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void testSimpleUnitConversion()
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{
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// Test MM to CM (10mm = 1cm)
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MapMode aSource(MapUnit::MapMM);
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MapMode aDest(MapUnit::MapCM);
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Point aPt(100, 200); // 100mm, 200mm
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Point aResult = OutputDevice::LogicToLogic(aPt, aSource, aDest);
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CPPUNIT_ASSERT_EQUAL(tools::Long(10), aResult.X()); // 10cm
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CPPUNIT_ASSERT_EQUAL(tools::Long(20), aResult.Y()); // 20cm
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}
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void testFractionScaling()
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{
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// Converting 100 Source -> 50 Dest
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MapMode aSource(MapUnit::MapMM);
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aSource.SetScaleX(Fraction(1, 2));
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aSource.SetScaleY(Fraction(1, 2));
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MapMode aDest(MapUnit::MapMM); // Default 1:1
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Point aPt(100, 200);
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Point aResult = OutputDevice::LogicToLogic(aPt, aSource, aDest);
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CPPUNIT_ASSERT_EQUAL(tools::Long(50), aResult.X());
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CPPUNIT_ASSERT_EQUAL(tools::Long(100), aResult.Y());
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}
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void testIntermediateOverflow()
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{
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tools::Long nLarge = 1LL << 30;
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MapMode aSource(MapUnit::MapInch);
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aSource.SetScaleX(Fraction(nLarge, 1));
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MapMode aDest(MapUnit::Map100thMM);
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aDest.SetScaleX(Fraction(nLarge, 1));
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// n1 (Coord) = 10,000,000
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// n2 (Scale) = 2^30 (~10^9)
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// n3 (Unit) = 2540
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// Product = 10^7 * 10^9 * 2540 ~= 2.5 * 10^19
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// Max Int64 ~= 9 * 10^18
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// THIS WILL OVERFLOW 64-bit integer logic if BigInt is missing.
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Point aPt(10000000, 0);
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Point aResult = OutputDevice::LogicToLogic(aPt, aSource, aDest);
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// Expected: 10,000,000 inches = 25,400,000,000 100thMM
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CPPUNIT_ASSERT_EQUAL(tools::Long(25400000000), aResult.X());
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}
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void testRoundingBehavior()
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{
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// Test that 0.5 rounds correctly (usually to nearest)
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// Source: 100thMM
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// Dest: MM
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// 150 100thMM = 1.5 MM -> Should round to 2
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// 140 100thMM = 1.4 MM -> Should round to 1
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MapMode aSource(MapUnit::Map100thMM);
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MapMode aDest(MapUnit::MapMM);
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Point aPt1(150, 140);
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Point aResult1 = OutputDevice::LogicToLogic(aPt1, aSource, aDest);
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CPPUNIT_ASSERT_EQUAL(tools::Long(2), aResult1.X()); // 1.5 -> 2
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CPPUNIT_ASSERT_EQUAL(tools::Long(1), aResult1.Y()); // 1.4 -> 1
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// Test Negative Rounding
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Point aPt2(-150, -140);
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Point aResult2 = OutputDevice::LogicToLogic(aPt2, aSource, aDest);
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CPPUNIT_ASSERT_EQUAL(tools::Long(-2), aResult2.X()); // -1.5 -> -2
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CPPUNIT_ASSERT_EQUAL(tools::Long(-1), aResult2.Y()); // -1.4 -> -1
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}
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};
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CPPUNIT_TEST_SUITE_REGISTRATION(VclMapTest);
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} // end anonymous namespace
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CPPUNIT_PLUGIN_IMPLEMENT();
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/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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