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import io
from fontTools.ttLib import TTFont, newTable, registerCustomTableClass, unregisterCustomTableClass
from fontTools.ttLib.tables.DefaultTable import DefaultTable
class CustomTableClass(DefaultTable):
def decompile(self, data, ttFont):
self.numbers = list(data)
def compile(self, ttFont):
return bytes(self.numbers)
# not testing XML read/write
table_C_U_S_T_ = CustomTableClass # alias for testing
TABLETAG = "CUST"
def test_registerCustomTableClass():
font = TTFont()
font[TABLETAG] = newTable(TABLETAG)
font[TABLETAG].data = b"\x00\x01\xff"
f = io.BytesIO()
font.save(f)
f.seek(0)
assert font[TABLETAG].data == b"\x00\x01\xff"
registerCustomTableClass(TABLETAG, "ttFont_test", "CustomTableClass")
try:
font = TTFont(f)
assert font[TABLETAG].numbers == [0, 1, 255]
assert font[TABLETAG].compile(font) == b"\x00\x01\xff"
finally:
unregisterCustomTableClass(TABLETAG)
def test_registerCustomTableClassStandardName():
registerCustomTableClass(TABLETAG, "ttFont_test")
try:
font = TTFont()
font[TABLETAG] = newTable(TABLETAG)
font[TABLETAG].numbers = [4, 5, 6]
assert font[TABLETAG].compile(font) == b"\x04\x05\x06"
finally:
unregisterCustomTableClass(TABLETAG)