fonttools/Lib/fontTools/ttLib/tables/C_P_A_L_test.py

from __future__ import print_function, division, absolute_import
from fontTools.misc.py23 import *
from fontTools.misc.testTools import getXML, parseXML
from fontTools.misc.textTools import deHexStr
from fontTools.ttLib import getTableModule, newTable
import unittest


CPAL_DATA_V0 = deHexStr(
    '0000 0002 '          # version=0, numPaletteEntries=2
    '0002 0004 '          # numPalettes=2, numColorRecords=4
    '00000010 '           # offsetToFirstColorRecord=16
    '0000 0002 '          # colorRecordIndex=[0, 2]
    '000000FF FFCC66FF '  # colorRecord #0, #1 (blue/green/red/alpha)
    '000000FF 000080FF')  # colorRecord #2, #3


CPAL_DATA_V0_SHARING_COLORS = deHexStr(
    '0000 0003 '                   # version=0, numPaletteEntries=3
    '0004 0006 '                   # numPalettes=4, numColorRecords=6
    '00000014 '                    # offsetToFirstColorRecord=20
    '0000 0000 0003 0000 '         # colorRecordIndex=[0, 0, 3, 0]
    '443322FF 77889911 55555555 '  # colorRecord #0, #1, #2 (blue/green/red/a)
    '443322FF 77889911 FFFFFFFF')  # colorRecord #3, #4, #5


class CPALTest(unittest.TestCase):
    def test_decompile_v0(self):
        cpal = newTable('CPAL')
        cpal.decompile(CPAL_DATA_V0, ttFont=None)
        self.assertEqual(cpal.version, 0)
        self.assertEqual(cpal.numPaletteEntries, 2)
        self.assertEqual(repr(cpal.palettes),
                         '[[#000000FF, #66CCFFFF], [#000000FF, #800000FF]]')

    def test_decompile_v0_sharingColors(self):
        cpal = newTable('CPAL')
        cpal.decompile(CPAL_DATA_V0_SHARING_COLORS, ttFont=None)
        self.assertEqual(cpal.version, 0)
        self.assertEqual(cpal.numPaletteEntries, 3)
        self.assertEqual([repr(p) for p in cpal.palettes], [
            '[#223344FF, #99887711, #55555555]',
            '[#223344FF, #99887711, #55555555]',
            '[#223344FF, #99887711, #FFFFFFFF]',
            '[#223344FF, #99887711, #55555555]'])

    def test_compile_v0(self):
        cpal = newTable('CPAL')
        cpal.decompile(CPAL_DATA_V0, ttFont=None)
        self.assertEqual(cpal.compile(ttFont=None), CPAL_DATA_V0)

    def test_compile_v0_sharingColors(self):
        cpal = newTable('CPAL')
        cpal.version = 0
        Color = getTableModule('CPAL').Color
        palette1 = [Color(red=0x22, green=0x33, blue=0x44, alpha=0xff),
                    Color(red=0x99, green=0x88, blue=0x77, alpha=0x11),
                    Color(red=0x55, green=0x55, blue=0x55, alpha=0x55)]
        palette2 = [Color(red=0x22, green=0x33, blue=0x44, alpha=0xff),
                    Color(red=0x99, green=0x88, blue=0x77, alpha=0x11),
                    Color(red=0xFF, green=0xFF, blue=0xFF, alpha=0xFF)]
        cpal.numPaletteEntries = len(palette1)
        cpal.palettes = [palette1, palette1, palette2, palette1]
        self.assertEqual(cpal.compile(ttFont=None),
                         CPAL_DATA_V0_SHARING_COLORS)

    def test_toXML_v0(self):
        cpal = newTable('CPAL')
        cpal.decompile(CPAL_DATA_V0, ttFont=None)
        self.assertEqual(getXML(cpal.toXML),
                         '<version value="0"/>'
                         '<numPaletteEntries value="2"/>'
                         '<palette index="0">'
                         '  <color index="0" value="#000000FF"/>'
                         '  <color index="1" value="#66CCFFFF"/>'
                         '</palette>'
                         '<palette index="1">'
                         '  <color index="0" value="#000000FF"/>'
                         '  <color index="1" value="#800000FF"/>'
                         '</palette>')

    def test_fromXML_v0(self):
        cpal = newTable('CPAL')
        for name, attrs, content in parseXML(
                '<version value="0"/>'
                '<numPaletteEntries value="1"/>'
                '<palette index="0">'
                '  <color index="0" value="#12345678"/>'
                '  <color index="1" value="#FEDCBA98"/>'
                '</palette>'):
            cpal.fromXML(name, attrs, content, ttFont=None)
        self.assertEqual(cpal.version, 0)
        self.assertEqual(cpal.numPaletteEntries, 1)
        self.assertEqual(repr(cpal.palettes), '[[#12345678, #FEDCBA98]]')


if __name__ == "__main__":
    unittest.main()