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kicad/qa/tests/libs/kimath/math/test_vector2.cpp
Seth Hillbrand 0b2d4d4879 Revise Copyright statement to align with TLF 
Recommendation is to avoid using the year nomenclature as this
information is already encoded in the git repo.  Avoids needing to
repeatly update.

Also updates AUTHORS.txt from current repo with contributor names
2025-01-01 14:12:04 -08:00

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright The KiCad Developers, see AUTHORS.TXT for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/**
* Test suite for KiCad math code.
*/
#include <qa_utils/wx_utils/unit_test_utils.h>
// Code under test
#include <math/vector2d.h>
/**
* Declare the test suite
*/
BOOST_AUTO_TEST_SUITE( VECTOR2TESTS )
BOOST_AUTO_TEST_CASE( Constexpr )
{
constexpr VECTOR2I vi_1_2{ 1, 2 };
// Something to test at runtime
BOOST_TEST( vi_1_2 == VECTOR2I( 1, 2 ) );
static_assert( vi_1_2.x == 1 );
static_assert( vi_1_2.y == 2 );
constexpr VECTOR2I vi_3_5 = vi_1_2 + VECTOR2I( 3, 4 ) - VECTOR2I( 1, 1 );
static_assert( vi_3_5 == VECTOR2I( 3, 5 ) );
static_assert( vi_3_5.SquaredEuclideanNorm() == 9 + 25 );
static_assert( vi_3_5 > vi_1_2 );
static_assert( vi_1_2 < vi_3_5 );
static_assert( vi_1_2 != vi_3_5 );
static_assert( vi_1_2 <= vi_1_2 );
static_assert( vi_1_2 >= vi_1_2 );
static_assert( vi_1_2.SquaredDistance( vi_3_5 ) == 4 + 9 );
static_assert( LexicographicalCompare( vi_1_2, vi_3_5 ) < 0 );
// Was the copy avoided?
static_assert( &LexicographicalMin( vi_1_2, vi_3_5 ) == &vi_1_2 );
static_assert( &LexicographicalMin( vi_1_2, vi_3_5 ) == &vi_1_2 );
constexpr VECTOR2D vd_1_2{ 1.0, 2.0 };
constexpr VECTOR2D vd_3_4{ 3.0, 4.0 };
static_assert( vd_1_2 == VECTOR2D( 1.0, 2.0 ) );
static_assert( vd_1_2 != vd_3_4 );
static_assert( vd_1_2 < vd_3_4 );
static_assert( vd_1_2 <= vd_3_4 );
static_assert( vd_3_4 > vd_1_2 );
// After C++23
//static_assert( equals( vd_1_2, vd_3_4, 2.0 ) );
}
BOOST_AUTO_TEST_CASE( test_cross_product, *boost::unit_test::tolerance( 0.000001 ) )
{
VECTOR2I v1(0, 1);
VECTOR2I v2(1, 0);
BOOST_TEST( v2.Cross( v1 ) == 1 );
}
BOOST_AUTO_TEST_CASE( test_dot_product, *boost::unit_test::tolerance( 0.000001 ) )
{
VECTOR2I v1( 0, 1 );
VECTOR2I v2( 1, 0 );
BOOST_TEST( v2.Dot( v1 ) == 0 );
}
BOOST_AUTO_TEST_CASE( test_resize, *boost::unit_test::tolerance( 0.000001 ) )
{
// just some arbitrary vectors
VECTOR2I v1( 4, 3 );
VECTOR2I v2( 5, -1 );
VECTOR2I v3( -2, 1 );
VECTOR2I v4( 1, 1 );
VECTOR2I v5( -70, -70 );
BOOST_TEST( v1.Resize( 8 ) == VECTOR2I( 6, 5 ) );
BOOST_TEST( v2.Resize( 10 ) == VECTOR2I( 10, -2 ) );
BOOST_TEST( v3.Resize( 4 ) == VECTOR2I( -4, 2 ) );
BOOST_TEST( v4.Resize( 1 ) == VECTOR2I( 1, 1 ) );
BOOST_TEST( v5.Resize( 100 ) == VECTOR2I( -71, -71 ) );
}
BOOST_AUTO_TEST_CASE( test_casting )
{
VECTOR2I vint( 4, 3 );
VECTOR2D vdouble( 4.0, 3.0 );
VECTOR2L vlong( 4, 3 );
VECTOR2<float> vfloat( 4.0f, 3.0f );
VECTOR2<unsigned> vunsigned( 4, 3 );
BOOST_CHECK_EQUAL( vint, VECTOR2I( vdouble ) );
BOOST_CHECK_EQUAL( vint, VECTOR2I( vlong ) );
BOOST_CHECK_EQUAL( vint, VECTOR2I( vfloat ) );
BOOST_CHECK_EQUAL( vint, VECTOR2I( vunsigned ) );
BOOST_CHECK_EQUAL( vdouble, VECTOR2D( vint ) );
BOOST_CHECK_EQUAL( vdouble, VECTOR2D( vlong ) );
BOOST_CHECK_EQUAL( vdouble, VECTOR2D( vfloat ) );
BOOST_CHECK_EQUAL( vdouble, VECTOR2D( vunsigned ) );
BOOST_CHECK_EQUAL( vlong, VECTOR2L( vint ) );
BOOST_CHECK_EQUAL( vlong, VECTOR2L( vdouble ) );
BOOST_CHECK_EQUAL( vlong, VECTOR2L( vfloat ) );
BOOST_CHECK_EQUAL( vlong, VECTOR2L( vunsigned ) );
BOOST_CHECK_EQUAL( vfloat, VECTOR2<float>( vint ) );
BOOST_CHECK_EQUAL( vfloat, VECTOR2<float>( vdouble ) );
BOOST_CHECK_EQUAL( vfloat, VECTOR2<float>( vlong ) );
BOOST_CHECK_EQUAL( vfloat, VECTOR2<float>( vunsigned ) );
BOOST_CHECK_EQUAL( vunsigned, VECTOR2<unsigned>( vint ) );
BOOST_CHECK_EQUAL( vunsigned, VECTOR2<unsigned>( vdouble ) );
BOOST_CHECK_EQUAL( vunsigned, VECTOR2<unsigned>( vlong ) );
BOOST_CHECK_EQUAL( vunsigned, VECTOR2<unsigned>( vfloat ) );
// Check that negative values are handled correctly
vint = vint - 1;
vdouble = vdouble - 1;
vlong = vlong - 1;
vfloat = vfloat - 1;
vunsigned = vunsigned - 1;
BOOST_CHECK_EQUAL( vint, VECTOR2I( 3, 2 ) );
BOOST_CHECK_EQUAL( vdouble, VECTOR2D( 3.0, 2.0 ) );
BOOST_CHECK_EQUAL( vlong, VECTOR2L( 3, 2 ) );
BOOST_CHECK_EQUAL( vfloat, VECTOR2<float>( 3.0f, 2.0f ) );
BOOST_CHECK_EQUAL( vunsigned, VECTOR2<unsigned>( 3, 2 ) );
// Check that subtracting unsigned values works correctly
vint = vint - (unsigned)1;
vdouble = vdouble - (unsigned)1;
vlong = vlong - (unsigned)1;
vfloat = vfloat - (unsigned)1;
vunsigned = vunsigned - (unsigned)1;
BOOST_CHECK_EQUAL( vint, VECTOR2I( 2, 1 ) );
BOOST_CHECK_EQUAL( vdouble, VECTOR2D( 2.0, 1.0 ) );
BOOST_CHECK_EQUAL( vlong, VECTOR2L( 2, 1 ) );
BOOST_CHECK_EQUAL( vfloat, VECTOR2<float>( 2.0f, 1.0f ) );
BOOST_CHECK_EQUAL( vunsigned, VECTOR2<unsigned>( 2, 1 ) );
vint = vint - 5.0;
vdouble = vdouble - 5.0;
vlong = vlong - 5.0;
vfloat = vfloat - 5.0;
vunsigned = vunsigned - 5.0;
BOOST_CHECK_EQUAL( vint, VECTOR2I( -3, -4 ) );
BOOST_CHECK_EQUAL( vdouble, VECTOR2D( -3.0, -4.0 ) );
BOOST_CHECK_EQUAL( vlong, VECTOR2L( -3, -4 ) );
BOOST_CHECK_EQUAL( vfloat, VECTOR2<float>( -3.0f, -4.0f ) );
BOOST_CHECK_EQUAL( vunsigned, VECTOR2<unsigned>( 4294967293, 4294967292 ) ); // roll over unsigned when explicitly subtracting.
// Check that negative initial values are handled correctly
vint = VECTOR2I( -4, -3 );
vdouble = VECTOR2D( -4.0, -3.0 );
vlong = VECTOR2L( -4, -3 );
vfloat = VECTOR2<float>( -4.0f, -3.0f );
vunsigned = VECTOR2<unsigned>( -4, -3 );
vint = vint - 1;
vdouble = vdouble - 1;
vlong = vlong - 1;
vfloat = vfloat - 1;
vunsigned = vunsigned - 1;
BOOST_CHECK_EQUAL( vint, VECTOR2I( -5, -4 ) );
BOOST_CHECK_EQUAL( vdouble, VECTOR2D( -5.0, -4.0 ) );
BOOST_CHECK_EQUAL( vlong, VECTOR2L( -5, -4 ) );
BOOST_CHECK_EQUAL( vfloat, VECTOR2<float>( -5.0f, -4.0f ) );
BOOST_CHECK_EQUAL( vunsigned, VECTOR2<unsigned>( 4294967291, 4294967292 ) );
vint = vint - 1u;
vdouble = vdouble - 1u;
vlong = vlong - 1u;
vfloat = vfloat - 1u;
BOOST_CHECK_EQUAL( vint, VECTOR2I( -6, -5 ) );
BOOST_CHECK_EQUAL( vdouble, VECTOR2D( -6.0, -5.0 ) );
BOOST_CHECK_EQUAL( vlong, VECTOR2L( -6, -5 ) );
BOOST_CHECK_EQUAL( vfloat, VECTOR2<float>( -6.0f, -5.0f ) );
auto add = vint + vdouble;
BOOST_CHECK_EQUAL( add, VECTOR2D( -12.0, -10.0 ) );
auto sub = vint - 2 * vlong;
BOOST_CHECK_EQUAL( sub.x, 6 );
BOOST_CHECK_EQUAL( sub.y, 5 );
vunsigned = VECTOR2<unsigned>( std::numeric_limits<unsigned>::max(), std::numeric_limits<unsigned>::max() );
vint = VECTOR2I( vunsigned );
BOOST_CHECK_EQUAL( vint.x, std::numeric_limits<int>::max() );
vunsigned += 1;
BOOST_CHECK_EQUAL( vunsigned.x, 0 );
}
BOOST_AUTO_TEST_SUITE_END()
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