tests/geometry/rect.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/geometry/rect.cpp
   3 // Purpose:     wxRect unit test
   4 // Author:      Vadim Zeitlin
   5 // Created:     2004-12-11
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2004 wxWindows
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 // ----------------------------------------------------------------------------
  11 // headers
  12 // ----------------------------------------------------------------------------
  13
  14 #include "testprec.h"
  15
  16 #ifdef __BORLANDC__
  17     #pragma hdrstop
  18 #endif
  19
  20 #ifndef WX_PRECOMP
  21     #include "wx/gdicmn.h"
  22 #endif // WX_PRECOMP
  23
  24 // ----------------------------------------------------------------------------
  25 // test class
  26 // ----------------------------------------------------------------------------
  27
  28 class RectTestCase : public CppUnit::TestCase
  29 {
  30 public:
  31     RectTestCase() { }
  32
  33 private:
  34     CPPUNIT_TEST_SUITE( RectTestCase );
  35         CPPUNIT_TEST( Operators );
  36         CPPUNIT_TEST( Union );
  37     CPPUNIT_TEST_SUITE_END();
  38
  39     void Operators();
  40     void Union();
  41
  42     DECLARE_NO_COPY_CLASS(RectTestCase)
  43 };
  44
  45 // register in the unnamed registry so that these tests are run by default
  46 CPPUNIT_TEST_SUITE_REGISTRATION( RectTestCase );
  47
  48 // also include in it's own registry so that these tests can be run alone
  49 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( RectTestCase, "RectTestCase" );
  50
  51 void RectTestCase::Operators()
  52 {
  53     // test + operator which works like Union but does not ignore empty rectangles
  54     static const struct RectData
  55     {
  56         int x1, y1, w1, h1;
  57         int x2, y2, w2, h2;
  58         int x, y, w, h;
  59
  60         wxRect GetFirst() const { return wxRect(x1, y1, w1, h1); }
  61         wxRect GetSecond() const { return wxRect(x2, y2, w2, h2); }
  62         wxRect GetResult() const { return wxRect(x, y, w, h); }
  63     } s_rects[] =
  64     {
  65         { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
  66         { 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 2, 2 },
  67         { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
  68         { 1, 1, 1, 1, 4, 4, 1, 1, 1, 1, 4, 4 },
  69         { 1, 1, 2, 2, 4, 4, 1, 1, 1, 1, 4, 4 },
  70         { 2, 2, 2, 2, 4, 4, 4, 4, 2, 2, 6, 6 },
  71         { 1, 1, 4, 4, 4, 4, 1, 1, 1, 1, 4, 4 }
  72     };
  73
  74     for ( size_t n = 0; n < WXSIZEOF(s_rects); n++ )
  75     {
  76         const RectData& data = s_rects[n];
  77
  78         CPPUNIT_ASSERT(
  79             ( data.GetFirst() + data.GetSecond() ) == data.GetResult()
  80         );
  81
  82         CPPUNIT_ASSERT(
  83             ( data.GetSecond() + data.GetFirst() ) == data.GetResult()
  84         );
  85     }
  86 }
  87
  88 void RectTestCase::Union()
  89 {
  90     static const struct RectData
  91     {
  92         int x1, y1, w1, h1;
  93         int x2, y2, w2, h2;
  94         int x, y, w, h;
  95
  96         wxRect GetFirst() const { return wxRect(x1, y1, w1, h1); }
  97         wxRect GetSecond() const { return wxRect(x2, y2, w2, h2); }
  98         wxRect GetResult() const { return wxRect(x, y, w, h); }
  99     } s_rects[] =
 100     {
 101         { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
 102         { 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 },
 103         { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
 104         { 1, 1, 1, 1, 4, 4, 1, 1, 1, 1, 4, 4 },
 105         { 1, 1, 2, 2, 4, 4, 1, 1, 1, 1, 4, 4 },
 106         { 2, 2, 2, 2, 4, 4, 4, 4, 2, 2, 6, 6 },
 107         { 1, 1, 4, 4, 4, 4, 1, 1, 1, 1, 4, 4 }
 108     };
 109
 110     for ( size_t n = 0; n < WXSIZEOF(s_rects); n++ )
 111     {
 112         const RectData& data = s_rects[n];
 113
 114         CPPUNIT_ASSERT(
 115             data.GetFirst().Union(data.GetSecond()) == data.GetResult()
 116         );
 117
 118         CPPUNIT_ASSERT(
 119             data.GetSecond().Union(data.GetFirst()) == data.GetResult()
 120         );
 121     }
 122 }