File: FTSize-Test.cpp

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#include <cppunit/extensions/HelperMacros.h>
#include <cppunit/TestCaller.h>
#include <cppunit/TestCase.h>
#include <cppunit/TestSuite.h>
#include <assert.h>

#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_GLYPH_H

#include "Fontdefs.h"
#include "FTSize.h"


class FTSizeTest : public CppUnit::TestCase
{
    CPPUNIT_TEST_SUITE(FTSizeTest);
        CPPUNIT_TEST(testConstructor);
        CPPUNIT_TEST(testSetCharSize);
    CPPUNIT_TEST_SUITE_END();

    public:
        FTSizeTest() : CppUnit::TestCase("FTSize Test")
        {}

        FTSizeTest(const std::string& name) : CppUnit::TestCase(name) {}

        void testConstructor()
        {
            FTSize size;

            CPPUNIT_ASSERT_DOUBLES_EQUAL(0, size.CharSize(), 0.01);
            CPPUNIT_ASSERT_DOUBLES_EQUAL(0, size.Ascender(), 0.01);
            CPPUNIT_ASSERT_DOUBLES_EQUAL(0, size.Descender(), 0.01);

            CPPUNIT_ASSERT_DOUBLES_EQUAL(0, size.Height(), 0.01);
            CPPUNIT_ASSERT_DOUBLES_EQUAL(0, size.Width(), 0.01);

            CPPUNIT_ASSERT_DOUBLES_EQUAL(0, size.Underline(), 0.01);

        }


        void testSetCharSize()
        {
            setUpFreetype();

            FTSize size;

            CPPUNIT_ASSERT(size.CharSize(&face, FONT_POINT_SIZE, RESOLUTION, RESOLUTION));
            CPPUNIT_ASSERT(size.Error() == 0);

            CPPUNIT_ASSERT_DOUBLES_EQUAL(72, size.CharSize(), 0.01);
            CPPUNIT_ASSERT_DOUBLES_EQUAL(52, size.Ascender(), 0.01);
            CPPUNIT_ASSERT_DOUBLES_EQUAL(-15, size.Descender(), 0.01);

            CPPUNIT_ASSERT_DOUBLES_EQUAL(81.86, size.Height(), 0.01);
            CPPUNIT_ASSERT_DOUBLES_EQUAL(76.32, size.Width(), 0.01);

            CPPUNIT_ASSERT_DOUBLES_EQUAL(0, size.Underline(), 0.01);

            tearDownFreetype();
        }


        void setUp()
        {}


        void tearDown()
        {}

    private:
        FT_Library   library;
        FT_Face      face;

        void setUpFreetype()
        {
            FT_Error error = FT_Init_FreeType(&library);
            assert(!error);
            error = FT_New_Face(library, GOOD_FONT_FILE, 0, &face);
            assert(!error);
        }

        void tearDownFreetype()
        {
            FT_Done_Face(face);
            FT_Done_FreeType(library);
        }

};

CPPUNIT_TEST_SUITE_REGISTRATION(FTSizeTest);