kc3-lang/ftgl/test/FTGlyph-Test.cpp

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• Hash : 74b3ad8c
  Author :
  Date : 2008-04-13T14:04:54
  

  * Changed some unit tests so that they're clearer about where the failures come from.

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• test/FTGlyph-Test.cpp

• #include <assert.h>
  
  #include <cppunit/extensions/HelperMacros.h>
  #include <cppunit/TestCaller.h>
  #include <cppunit/TestCase.h>
  #include <cppunit/TestSuite.h>
  
  #include "Fontdefs.h"
  #include "FTGlyph.h"
  
  class TestGlyph : public FTGlyph
  {
      public:
          TestGlyph( FT_GlyphSlot glyph)
          :   FTGlyph(glyph)
          {}
          
          const FTPoint& Render( const FTPoint& pen) { return advance;};
  };
  
  
  class FTGlyphTest : public CppUnit::TestCase
  {
      CPPUNIT_TEST_SUITE( FTGlyphTest);
          CPPUNIT_TEST( testBadConstructor);
          CPPUNIT_TEST( testGoodConstructor);
      CPPUNIT_TEST_SUITE_END();
          
      public:
          FTGlyphTest() : CppUnit::TestCase( "FTGlyph Test")
          {}
          
          FTGlyphTest( const std::string& name) : CppUnit::TestCase(name) {}
  
          void testBadConstructor()
          {            
              TestGlyph testGlyph(0);
              
              FTPoint testPoint;
  
              CPPUNIT_ASSERT( testPoint == testGlyph.Advance());
              CPPUNIT_ASSERT_EQUAL( testPoint.X(), testGlyph.Advance().X());
              CPPUNIT_ASSERT_EQUAL( testPoint.Y(), testGlyph.Advance().Y());
              CPPUNIT_ASSERT_EQUAL( testPoint.Z(), testGlyph.Advance().Z());
  
              CPPUNIT_ASSERT_DOUBLES_EQUAL( 0, testGlyph.BBox().upperY, 0.01);
          
              CPPUNIT_ASSERT_EQUAL( testGlyph.Error(), 0);
          }
          
                  
          void testGoodConstructor()
          {            
              setUpFreetype( CHARACTER_CODE_A);
              TestGlyph testGlyph(face->glyph);
              
              FTPoint testPoint(47.0, 0.0, 0.0);
              FTPoint nextPoint = testGlyph.Advance();
              CPPUNIT_ASSERT( testPoint == nextPoint);
              CPPUNIT_ASSERT_DOUBLES_EQUAL( testPoint.X(), nextPoint.X(), 0.0001);
              CPPUNIT_ASSERT_DOUBLES_EQUAL( testPoint.Y(), nextPoint.Y(), 0.0001);
              CPPUNIT_ASSERT_DOUBLES_EQUAL( testPoint.Z(), nextPoint.Z(), 0.0001);
  
              CPPUNIT_ASSERT_DOUBLES_EQUAL( 51.39, testGlyph.BBox().upperY, 0.01);
          
              CPPUNIT_ASSERT( testGlyph.Error() == 0);
              
              tearDownFreetype();
          }
          
                  
          void setUp() 
          {}
          
          
          void tearDown() 
          {}
          
      private:
          FT_Library   library;
          FT_Face      face;
  
          void setUpFreetype( unsigned int characterIndex)
          {
              FT_Error error = FT_Init_FreeType( &library);
              assert(!error);
              error = FT_New_Face( library, ARIAL_FONT_FILE, 0, &face);
              assert(!error);
              
              loadGlyph( characterIndex);
          }
          
          void loadGlyph( unsigned int characterIndex)
          {
              long glyphIndex = FT_Get_Char_Index( face, characterIndex);
              
              FT_Set_Char_Size( face, 0L, FONT_POINT_SIZE * 64, RESOLUTION, RESOLUTION);
              
              FT_Error error = FT_Load_Glyph( face, glyphIndex, FT_LOAD_DEFAULT);
              assert(!error);
          }
          
          void tearDownFreetype()
          {
              FT_Done_Face( face);
              FT_Done_FreeType( library);
          }
          
  };
  
  CPPUNIT_TEST_SUITE_REGISTRATION( FTGlyphTest);
  
  

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