kicad/qa/unittests/common/test_eda_rect.cpp

122 lines
4.2 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2021 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
*/
#include <qa_utils/wx_utils/unit_test_utils.h>
#include <math/util.h>
// Code under test
#include <eda_rect.h>
/**
* Declare the test suite
*/
BOOST_AUTO_TEST_SUITE( EdaRect )
/**
* Check inflation and deflation
*/
BOOST_AUTO_TEST_CASE( Inflate )
{
int width = 20;
int height = 30;
wxSize sizes[] = { wxSize( width, height ), wxSize( width, -height ), wxSize( -width, height ),
wxSize( -width, -height ) };
// We need also to check what happens when deflation exceeds the size.
int deltas[] = { width, width / 2, width / 4 };
for( int delta : deltas )
{
for( wxSize size : sizes )
{
wxPoint origin = wxPoint( 100, 100 );
EDA_RECT rect( origin, size );
// The four corners of the rectangle.
wxPoint corners[] = { origin + wxSize( 0, 0 ), origin + wxSize( 0, size.y ),
origin + wxSize( size.x, 0 ), origin + wxSize( size.x, size.y ) };
// Inflation
wxPoint inflation_corners[] = {
corners[0] + wxSize( -delta * sign( size.x ), -delta * sign( size.y ) ),
corners[1] + wxSize( -delta * sign( size.x ), delta * sign( size.y ) ),
corners[2] + wxSize( delta * sign( size.x ), -delta * sign( size.y ) ),
corners[3] + wxSize( delta * sign( size.x ), delta * sign( size.y ) )
};
for( wxPoint corner : inflation_corners )
{
EDA_RECT inflated_rect = rect;
inflated_rect.Inflate( delta );
BOOST_CHECK( !rect.Contains( corner ) );
BOOST_CHECK( inflated_rect.Contains( corner ) );
}
// Deflation
wxPoint deflation_corners[] = {
corners[0]
+ wxSize( ( delta - 1 ) * sign( size.x ), ( delta - 1 ) * sign( size.y ) ),
corners[1]
+ wxSize( ( delta - 1 ) * sign( size.x ), -( delta - 1 ) * sign( size.y ) ),
corners[2]
+ wxSize( -( delta - 1 ) * sign( size.x ), ( delta - 1 ) * sign( size.y ) ),
corners[3]
+ wxSize( -( delta - 1 ) * sign( size.x ), -( delta - 1 ) * sign( size.y ) )
};
for( wxPoint corner : deflation_corners )
{
EDA_RECT deflated_rect = rect;
deflated_rect.Inflate( -delta );
// If true, deflation exceeds the size.
bool zeroed = false;
if( abs( rect.GetSize().x ) < 2 * delta )
{
BOOST_CHECK_EQUAL( deflated_rect.GetSize().x, 0 );
zeroed = true;
}
if( abs( rect.GetSize().y ) < 2 * delta )
{
BOOST_CHECK_EQUAL( deflated_rect.GetSize().y, 0 );
zeroed = true;
}
if( !zeroed )
{
BOOST_CHECK( rect.Contains( corner ) );
BOOST_CHECK( !deflated_rect.Contains( corner ) );
}
}
}
}
}
BOOST_AUTO_TEST_SUITE_END()