/usr/lib/python2.7/dist-packages/FontTools/fontTools/ttLib/woff2_test.py is in fonttools 3.0-1.
This file is owned by root:root, with mode 0o644.
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from fontTools.misc.py23 import *
from fontTools import ttLib
from .woff2 import (WOFF2Reader, woff2DirectorySize, woff2DirectoryFormat,
woff2FlagsSize, woff2UnknownTagSize, woff2Base128MaxSize, WOFF2DirectoryEntry,
getKnownTagIndex, packBase128, base128Size, woff2UnknownTagIndex,
WOFF2FlavorData, woff2TransformedTableTags, WOFF2GlyfTable, WOFF2LocaTable,
WOFF2Writer)
import unittest
import sstruct
import os
import random
import copy
from collections import OrderedDict
haveBrotli = False
try:
import brotli
haveBrotli = True
except ImportError:
pass
# Python 3 renamed 'assertRaisesRegexp' to 'assertRaisesRegex', and fires
# deprecation warnings if a program uses the old name.
if not hasattr(unittest.TestCase, 'assertRaisesRegex'):
unittest.TestCase.assertRaisesRegex = unittest.TestCase.assertRaisesRegexp
current_dir = os.path.abspath(os.path.dirname(os.path.realpath(__file__)))
data_dir = os.path.join(current_dir, 'testdata')
TTX = os.path.join(data_dir, 'TestTTF-Regular.ttx')
OTX = os.path.join(data_dir, 'TestOTF-Regular.otx')
METADATA = os.path.join(data_dir, 'test_woff2_metadata.xml')
TT_WOFF2 = BytesIO()
CFF_WOFF2 = BytesIO()
def setUpModule():
if not haveBrotli:
raise unittest.SkipTest("No module named brotli")
assert os.path.exists(TTX)
assert os.path.exists(OTX)
# import TT-flavoured test font and save it as WOFF2
ttf = ttLib.TTFont(recalcBBoxes=False, recalcTimestamp=False)
ttf.importXML(TTX, quiet=True)
ttf.flavor = "woff2"
ttf.save(TT_WOFF2, reorderTables=None)
# import CFF-flavoured test font and save it as WOFF2
otf = ttLib.TTFont(recalcBBoxes=False, recalcTimestamp=False)
otf.importXML(OTX, quiet=True)
otf.flavor = "woff2"
otf.save(CFF_WOFF2, reorderTables=None)
class WOFF2ReaderTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.file = BytesIO(CFF_WOFF2.getvalue())
cls.font = ttLib.TTFont(recalcBBoxes=False, recalcTimestamp=False)
cls.font.importXML(OTX, quiet=True)
def setUp(self):
self.file.seek(0)
def test_bad_signature(self):
with self.assertRaisesRegex(ttLib.TTLibError, 'bad signature'):
WOFF2Reader(BytesIO(b"wOFF"))
def test_not_enough_data_header(self):
incomplete_header = self.file.read(woff2DirectorySize - 1)
with self.assertRaisesRegex(ttLib.TTLibError, 'not enough data'):
WOFF2Reader(BytesIO(incomplete_header))
def test_incorrect_compressed_size(self):
data = self.file.read(woff2DirectorySize)
header = sstruct.unpack(woff2DirectoryFormat, data)
header['totalCompressedSize'] = 0
data = sstruct.pack(woff2DirectoryFormat, header)
with self.assertRaises(brotli.error):
WOFF2Reader(BytesIO(data + self.file.read()))
def test_incorrect_uncompressed_size(self):
decompress_backup = brotli.decompress
brotli.decompress = lambda data: b"" # return empty byte string
with self.assertRaisesRegex(ttLib.TTLibError, 'unexpected size for decompressed'):
WOFF2Reader(self.file)
brotli.decompress = decompress_backup
def test_incorrect_file_size(self):
data = self.file.read(woff2DirectorySize)
header = sstruct.unpack(woff2DirectoryFormat, data)
header['length'] -= 1
data = sstruct.pack(woff2DirectoryFormat, header)
with self.assertRaisesRegex(
ttLib.TTLibError, "doesn't match the actual file size"):
WOFF2Reader(BytesIO(data + self.file.read()))
def test_num_tables(self):
tags = [t for t in self.font.keys() if t not in ('GlyphOrder', 'DSIG')]
data = self.file.read(woff2DirectorySize)
header = sstruct.unpack(woff2DirectoryFormat, data)
self.assertEqual(header['numTables'], len(tags))
def test_table_tags(self):
tags = set([t for t in self.font.keys() if t not in ('GlyphOrder', 'DSIG')])
reader = WOFF2Reader(self.file)
self.assertEqual(set(reader.keys()), tags)
def test_get_normal_tables(self):
woff2Reader = WOFF2Reader(self.file)
specialTags = woff2TransformedTableTags + ('head', 'GlyphOrder', 'DSIG')
for tag in [t for t in self.font.keys() if t not in specialTags]:
origData = self.font.getTableData(tag)
decompressedData = woff2Reader[tag]
self.assertEqual(origData, decompressedData)
def test_reconstruct_unknown(self):
reader = WOFF2Reader(self.file)
with self.assertRaisesRegex(ttLib.TTLibError, 'transform for table .* unknown'):
reader.reconstructTable('ZZZZ')
class WOFF2ReaderTTFTest(WOFF2ReaderTest):
""" Tests specific to TT-flavored fonts. """
@classmethod
def setUpClass(cls):
cls.file = BytesIO(TT_WOFF2.getvalue())
cls.font = ttLib.TTFont(recalcBBoxes=False, recalcTimestamp=False)
cls.font.importXML(TTX, quiet=True)
def setUp(self):
self.file.seek(0)
def test_reconstruct_glyf(self):
woff2Reader = WOFF2Reader(self.file)
reconstructedData = woff2Reader['glyf']
self.assertEqual(self.font.getTableData('glyf'), reconstructedData)
def test_reconstruct_loca(self):
woff2Reader = WOFF2Reader(self.file)
reconstructedData = woff2Reader['loca']
self.assertEqual(self.font.getTableData('loca'), reconstructedData)
self.assertTrue(hasattr(woff2Reader.tables['glyf'], 'data'))
def test_reconstruct_loca_not_match_orig_size(self):
reader = WOFF2Reader(self.file)
reader.tables['loca'].origLength -= 1
with self.assertRaisesRegex(
ttLib.TTLibError, "'loca' table doesn't match original size"):
reader.reconstructTable('loca')
def normalise_table(font, tag, padding=4):
""" Return normalised table data. Keep 'font' instance unmodified. """
assert tag in ('glyf', 'loca', 'head')
assert tag in font
if tag == 'head':
origHeadFlags = font['head'].flags
font['head'].flags |= (1 << 11)
tableData = font['head'].compile(font)
if font.sfntVersion in ("\x00\x01\x00\x00", "true"):
assert {'glyf', 'loca', 'head'}.issubset(font.keys())
origIndexFormat = font['head'].indexToLocFormat
if hasattr(font['loca'], 'locations'):
origLocations = font['loca'].locations[:]
else:
origLocations = []
glyfTable = ttLib.getTableClass('glyf')()
glyfTable.decompile(font.getTableData('glyf'), font)
glyfTable.padding = padding
if tag == 'glyf':
tableData = glyfTable.compile(font)
elif tag == 'loca':
glyfTable.compile(font)
tableData = font['loca'].compile(font)
if tag == 'head':
glyfTable.compile(font)
font['loca'].compile(font)
tableData = font['head'].compile(font)
font['head'].indexToLocFormat = origIndexFormat
font['loca'].set(origLocations)
if tag == 'head':
font['head'].flags = origHeadFlags
return tableData
def normalise_font(font, padding=4):
""" Return normalised font data. Keep 'font' instance unmodified. """
# drop DSIG but keep a copy
DSIG_copy = copy.deepcopy(font['DSIG'])
del font['DSIG']
# ovverride TTFont attributes
origFlavor = font.flavor
origRecalcBBoxes = font.recalcBBoxes
origRecalcTimestamp = font.recalcTimestamp
origLazy = font.lazy
font.flavor = None
font.recalcBBoxes = False
font.recalcTimestamp = False
font.lazy = True
# save font to temporary stream
infile = BytesIO()
font.save(infile)
infile.seek(0)
# reorder tables alphabetically
outfile = BytesIO()
reader = ttLib.sfnt.SFNTReader(infile)
writer = ttLib.sfnt.SFNTWriter(
outfile, len(reader.tables), reader.sfntVersion, reader.flavor, reader.flavorData)
for tag in sorted(reader.keys()):
if tag in woff2TransformedTableTags + ('head',):
writer[tag] = normalise_table(font, tag, padding)
else:
writer[tag] = reader[tag]
writer.close()
# restore font attributes
font['DSIG'] = DSIG_copy
font.flavor = origFlavor
font.recalcBBoxes = origRecalcBBoxes
font.recalcTimestamp = origRecalcTimestamp
font.lazy = origLazy
return outfile.getvalue()
class WOFF2DirectoryEntryTest(unittest.TestCase):
def setUp(self):
self.entry = WOFF2DirectoryEntry()
def test_not_enough_data_table_flags(self):
with self.assertRaisesRegex(ttLib.TTLibError, "can't read table 'flags'"):
self.entry.fromString(b"")
def test_not_enough_data_table_tag(self):
incompleteData = bytearray([0x3F, 0, 0, 0])
with self.assertRaisesRegex(ttLib.TTLibError, "can't read table 'tag'"):
self.entry.fromString(bytes(incompleteData))
def test_table_reserved_flags(self):
with self.assertRaisesRegex(ttLib.TTLibError, "bits 6-7 are reserved"):
self.entry.fromString(bytechr(0xC0))
def test_loca_zero_transformLength(self):
data = bytechr(getKnownTagIndex('loca')) # flags
data += packBase128(random.randint(1, 100)) # origLength
data += packBase128(1) # non-zero transformLength
with self.assertRaisesRegex(
ttLib.TTLibError, "transformLength of the 'loca' table must be 0"):
self.entry.fromString(data)
def test_fromFile(self):
unknownTag = Tag('ZZZZ')
data = bytechr(getKnownTagIndex(unknownTag))
data += unknownTag.tobytes()
data += packBase128(random.randint(1, 100))
expectedPos = len(data)
f = BytesIO(data + b'\0'*100)
self.entry.fromFile(f)
self.assertEqual(f.tell(), expectedPos)
def test_transformed_toString(self):
self.entry.tag = Tag('glyf')
self.entry.flags = getKnownTagIndex(self.entry.tag)
self.entry.origLength = random.randint(101, 200)
self.entry.length = random.randint(1, 100)
expectedSize = (woff2FlagsSize + base128Size(self.entry.origLength) +
base128Size(self.entry.length))
data = self.entry.toString()
self.assertEqual(len(data), expectedSize)
def test_known_toString(self):
self.entry.tag = Tag('head')
self.entry.flags = getKnownTagIndex(self.entry.tag)
self.entry.origLength = 54
expectedSize = (woff2FlagsSize + base128Size(self.entry.origLength))
data = self.entry.toString()
self.assertEqual(len(data), expectedSize)
def test_unknown_toString(self):
self.entry.tag = Tag('ZZZZ')
self.entry.flags = woff2UnknownTagIndex
self.entry.origLength = random.randint(1, 100)
expectedSize = (woff2FlagsSize + woff2UnknownTagSize +
base128Size(self.entry.origLength))
data = self.entry.toString()
self.assertEqual(len(data), expectedSize)
class DummyReader(WOFF2Reader):
def __init__(self, file, checkChecksums=1, fontNumber=-1):
self.file = file
for attr in ('majorVersion', 'minorVersion', 'metaOffset', 'metaLength',
'metaOrigLength', 'privLength', 'privOffset'):
setattr(self, attr, 0)
class WOFF2FlavorDataTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
assert os.path.exists(METADATA)
with open(METADATA, 'rb') as f:
cls.xml_metadata = f.read()
cls.compressed_metadata = brotli.compress(cls.xml_metadata, mode=brotli.MODE_TEXT)
# make random byte strings; font data must be 4-byte aligned
cls.fontdata = bytes(bytearray(random.sample(range(0, 256), 80)))
cls.privData = bytes(bytearray(random.sample(range(0, 256), 20)))
def setUp(self):
self.file = BytesIO(self.fontdata)
self.file.seek(0, 2)
def test_get_metaData_no_privData(self):
self.file.write(self.compressed_metadata)
reader = DummyReader(self.file)
reader.metaOffset = len(self.fontdata)
reader.metaLength = len(self.compressed_metadata)
reader.metaOrigLength = len(self.xml_metadata)
flavorData = WOFF2FlavorData(reader)
self.assertEqual(self.xml_metadata, flavorData.metaData)
def test_get_privData_no_metaData(self):
self.file.write(self.privData)
reader = DummyReader(self.file)
reader.privOffset = len(self.fontdata)
reader.privLength = len(self.privData)
flavorData = WOFF2FlavorData(reader)
self.assertEqual(self.privData, flavorData.privData)
def test_get_metaData_and_privData(self):
self.file.write(self.compressed_metadata + self.privData)
reader = DummyReader(self.file)
reader.metaOffset = len(self.fontdata)
reader.metaLength = len(self.compressed_metadata)
reader.metaOrigLength = len(self.xml_metadata)
reader.privOffset = reader.metaOffset + reader.metaLength
reader.privLength = len(self.privData)
flavorData = WOFF2FlavorData(reader)
self.assertEqual(self.xml_metadata, flavorData.metaData)
self.assertEqual(self.privData, flavorData.privData)
def test_get_major_minorVersion(self):
reader = DummyReader(self.file)
reader.majorVersion = reader.minorVersion = 1
flavorData = WOFF2FlavorData(reader)
self.assertEqual(flavorData.majorVersion, 1)
self.assertEqual(flavorData.minorVersion, 1)
class WOFF2WriterTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.font = ttLib.TTFont(recalcBBoxes=False, recalcTimestamp=False, flavor="woff2")
cls.font.importXML(OTX, quiet=True)
cls.tags = [t for t in cls.font.keys() if t != 'GlyphOrder']
cls.numTables = len(cls.tags)
cls.file = BytesIO(CFF_WOFF2.getvalue())
cls.file.seek(0, 2)
cls.length = (cls.file.tell() + 3) & ~3
cls.setUpFlavorData()
@classmethod
def setUpFlavorData(cls):
assert os.path.exists(METADATA)
with open(METADATA, 'rb') as f:
cls.xml_metadata = f.read()
cls.compressed_metadata = brotli.compress(cls.xml_metadata, mode=brotli.MODE_TEXT)
cls.privData = bytes(bytearray(random.sample(range(0, 256), 20)))
def setUp(self):
self.file.seek(0)
self.writer = WOFF2Writer(BytesIO(), self.numTables, self.font.sfntVersion)
def test_DSIG_dropped(self):
self.writer['DSIG'] = b"\0"
self.assertEqual(len(self.writer.tables), 0)
self.assertEqual(self.writer.numTables, self.numTables-1)
def test_no_rewrite_table(self):
self.writer['ZZZZ'] = b"\0"
with self.assertRaisesRegex(ttLib.TTLibError, "cannot rewrite"):
self.writer['ZZZZ'] = b"\0"
def test_num_tables(self):
self.writer['ABCD'] = b"\0"
with self.assertRaisesRegex(ttLib.TTLibError, "wrong number of tables"):
self.writer.close()
def test_required_tables(self):
font = ttLib.TTFont(flavor="woff2")
with self.assertRaisesRegex(ttLib.TTLibError, "missing required table"):
font.save(BytesIO())
def test_head_transform_flag(self):
headData = self.font.getTableData('head')
origFlags = byteord(headData[16])
woff2font = ttLib.TTFont(self.file)
newHeadData = woff2font.getTableData('head')
modifiedFlags = byteord(newHeadData[16])
self.assertNotEqual(origFlags, modifiedFlags)
restoredFlags = modifiedFlags & ~0x08 # turn off bit 11
self.assertEqual(origFlags, restoredFlags)
def test_tables_sorted_alphabetically(self):
expected = sorted([t for t in self.tags if t != 'DSIG'])
woff2font = ttLib.TTFont(self.file)
self.assertEqual(expected, list(woff2font.reader.keys()))
def test_checksums(self):
normFile = BytesIO(normalise_font(self.font, padding=4))
normFile.seek(0)
normFont = ttLib.TTFont(normFile, checkChecksums=2)
w2font = ttLib.TTFont(self.file)
# force reconstructing glyf table using 4-byte padding
w2font.reader.padding = 4
for tag in [t for t in self.tags if t != 'DSIG']:
w2data = w2font.reader[tag]
normData = normFont.reader[tag]
if tag == "head":
w2data = w2data[:8] + b'\0\0\0\0' + w2data[12:]
normData = normData[:8] + b'\0\0\0\0' + normData[12:]
w2CheckSum = ttLib.sfnt.calcChecksum(w2data)
normCheckSum = ttLib.sfnt.calcChecksum(normData)
self.assertEqual(w2CheckSum, normCheckSum)
normCheckSumAdjustment = normFont['head'].checkSumAdjustment
self.assertEqual(normCheckSumAdjustment, w2font['head'].checkSumAdjustment)
def test_calcSFNTChecksumsLengthsAndOffsets(self):
normFont = ttLib.TTFont(BytesIO(normalise_font(self.font, padding=4)))
for tag in self.tags:
self.writer[tag] = self.font.getTableData(tag)
self.writer._normaliseGlyfAndLoca(padding=4)
self.writer._setHeadTransformFlag()
self.writer.tables = OrderedDict(sorted(self.writer.tables.items()))
self.writer._calcSFNTChecksumsLengthsAndOffsets()
for tag, entry in normFont.reader.tables.items():
self.assertEqual(entry.offset, self.writer.tables[tag].origOffset)
self.assertEqual(entry.length, self.writer.tables[tag].origLength)
self.assertEqual(entry.checkSum, self.writer.tables[tag].checkSum)
def test_bad_sfntVersion(self):
for i in range(self.numTables):
self.writer[bytechr(65 + i)*4] = b"\0"
self.writer.sfntVersion = 'ZZZZ'
with self.assertRaisesRegex(ttLib.TTLibError, "bad sfntVersion"):
self.writer.close()
def test_calcTotalSize_no_flavorData(self):
expected = self.length
self.writer.file = BytesIO()
for tag in self.tags:
self.writer[tag] = self.font.getTableData(tag)
self.writer.close()
self.assertEqual(expected, self.writer.length)
self.assertEqual(expected, self.writer.file.tell())
def test_calcTotalSize_with_metaData(self):
expected = self.length + len(self.compressed_metadata)
flavorData = self.writer.flavorData = WOFF2FlavorData()
flavorData.metaData = self.xml_metadata
self.writer.file = BytesIO()
for tag in self.tags:
self.writer[tag] = self.font.getTableData(tag)
self.writer.close()
self.assertEqual(expected, self.writer.length)
self.assertEqual(expected, self.writer.file.tell())
def test_calcTotalSize_with_privData(self):
expected = self.length + len(self.privData)
flavorData = self.writer.flavorData = WOFF2FlavorData()
flavorData.privData = self.privData
self.writer.file = BytesIO()
for tag in self.tags:
self.writer[tag] = self.font.getTableData(tag)
self.writer.close()
self.assertEqual(expected, self.writer.length)
self.assertEqual(expected, self.writer.file.tell())
def test_calcTotalSize_with_metaData_and_privData(self):
metaDataLength = (len(self.compressed_metadata) + 3) & ~3
expected = self.length + metaDataLength + len(self.privData)
flavorData = self.writer.flavorData = WOFF2FlavorData()
flavorData.metaData = self.xml_metadata
flavorData.privData = self.privData
self.writer.file = BytesIO()
for tag in self.tags:
self.writer[tag] = self.font.getTableData(tag)
self.writer.close()
self.assertEqual(expected, self.writer.length)
self.assertEqual(expected, self.writer.file.tell())
def test_getVersion(self):
# no version
self.assertEqual((0, 0), self.writer._getVersion())
# version from head.fontRevision
fontRevision = self.font['head'].fontRevision
versionTuple = tuple(int(i) for i in str(fontRevision).split("."))
entry = self.writer.tables['head'] = ttLib.getTableClass('head')()
entry.data = self.font.getTableData('head')
self.assertEqual(versionTuple, self.writer._getVersion())
# version from writer.flavorData
flavorData = self.writer.flavorData = WOFF2FlavorData()
flavorData.majorVersion, flavorData.minorVersion = (10, 11)
self.assertEqual((10, 11), self.writer._getVersion())
class WOFF2WriterTTFTest(WOFF2WriterTest):
@classmethod
def setUpClass(cls):
cls.font = ttLib.TTFont(recalcBBoxes=False, recalcTimestamp=False, flavor="woff2")
cls.font.importXML(TTX, quiet=True)
cls.tags = [t for t in cls.font.keys() if t != 'GlyphOrder']
cls.numTables = len(cls.tags)
cls.file = BytesIO(TT_WOFF2.getvalue())
cls.file.seek(0, 2)
cls.length = (cls.file.tell() + 3) & ~3
cls.setUpFlavorData()
def test_normaliseGlyfAndLoca(self):
normTables = {}
for tag in ('head', 'loca', 'glyf'):
normTables[tag] = normalise_table(self.font, tag, padding=4)
for tag in self.tags:
tableData = self.font.getTableData(tag)
self.writer[tag] = tableData
if tag in normTables:
self.assertNotEqual(tableData, normTables[tag])
self.writer._normaliseGlyfAndLoca(padding=4)
self.writer._setHeadTransformFlag()
for tag in normTables:
self.assertEqual(self.writer.tables[tag].data, normTables[tag])
class WOFF2LocaTableTest(unittest.TestCase):
def setUp(self):
self.font = font = ttLib.TTFont(recalcBBoxes=False, recalcTimestamp=False)
font['head'] = ttLib.getTableClass('head')
font['loca'] = WOFF2LocaTable()
font['glyf'] = WOFF2GlyfTable()
def test_compile_short_loca(self):
locaTable = self.font['loca']
locaTable.set(list(range(0, 0x20000, 2)))
self.font['glyf'].indexFormat = 0
locaData = locaTable.compile(self.font)
self.assertEqual(len(locaData), 0x20000)
def test_compile_short_loca_overflow(self):
locaTable = self.font['loca']
locaTable.set(list(range(0x20000 + 1)))
self.font['glyf'].indexFormat = 0
with self.assertRaisesRegex(
ttLib.TTLibError, "indexFormat is 0 but local offsets > 0x20000"):
locaTable.compile(self.font)
def test_compile_short_loca_not_multiples_of_2(self):
locaTable = self.font['loca']
locaTable.set([1, 3, 5, 7])
self.font['glyf'].indexFormat = 0
with self.assertRaisesRegex(ttLib.TTLibError, "offsets not multiples of 2"):
locaTable.compile(self.font)
def test_compile_long_loca(self):
locaTable = self.font['loca']
locaTable.set(list(range(0x20001)))
self.font['glyf'].indexFormat = 1
locaData = locaTable.compile(self.font)
self.assertEqual(len(locaData), 0x20001 * 4)
def test_compile_set_indexToLocFormat_0(self):
locaTable = self.font['loca']
# offsets are all multiples of 2 and max length is < 0x10000
locaTable.set(list(range(0, 0x20000, 2)))
locaTable.compile(self.font)
newIndexFormat = self.font['head'].indexToLocFormat
self.assertEqual(0, newIndexFormat)
def test_compile_set_indexToLocFormat_1(self):
locaTable = self.font['loca']
# offsets are not multiples of 2
locaTable.set(list(range(10)))
locaTable.compile(self.font)
newIndexFormat = self.font['head'].indexToLocFormat
self.assertEqual(1, newIndexFormat)
# max length is >= 0x10000
locaTable.set(list(range(0, 0x20000 + 1, 2)))
locaTable.compile(self.font)
newIndexFormat = self.font['head'].indexToLocFormat
self.assertEqual(1, newIndexFormat)
class WOFF2GlyfTableTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
font = ttLib.TTFont(recalcBBoxes=False, recalcTimestamp=False)
font.importXML(TTX, quiet=True)
cls.tables = {}
cls.transformedTags = ('maxp', 'head', 'loca', 'glyf')
for tag in reversed(cls.transformedTags): # compile in inverse order
cls.tables[tag] = font.getTableData(tag)
infile = BytesIO(TT_WOFF2.getvalue())
reader = WOFF2Reader(infile)
cls.transformedGlyfData = reader.tables['glyf'].loadData(
reader.transformBuffer)
def setUp(self):
self.font = font = ttLib.TTFont(recalcBBoxes=False, recalcTimestamp=False)
font['head'] = ttLib.getTableClass('head')()
font['maxp'] = ttLib.getTableClass('maxp')()
font['loca'] = WOFF2LocaTable()
font['glyf'] = WOFF2GlyfTable()
for tag in self.transformedTags:
font[tag].decompile(self.tables[tag], font)
def test_reconstruct_glyf_padded_4(self):
glyfTable = WOFF2GlyfTable()
glyfTable.reconstruct(self.transformedGlyfData, self.font)
glyfTable.padding = 4
data = glyfTable.compile(self.font)
normGlyfData = normalise_table(self.font, 'glyf', glyfTable.padding)
self.assertEqual(normGlyfData, data)
def test_reconstruct_glyf_padded_2(self):
glyfTable = WOFF2GlyfTable()
glyfTable.reconstruct(self.transformedGlyfData, self.font)
glyfTable.padding = 2
data = glyfTable.compile(self.font)
normGlyfData = normalise_table(self.font, 'glyf', glyfTable.padding)
self.assertEqual(normGlyfData, data)
def test_reconstruct_glyf_unpadded(self):
glyfTable = WOFF2GlyfTable()
glyfTable.reconstruct(self.transformedGlyfData, self.font)
data = glyfTable.compile(self.font)
self.assertEqual(self.tables['glyf'], data)
def test_reconstruct_glyf_incorrect_glyphOrder(self):
glyfTable = WOFF2GlyfTable()
badGlyphOrder = self.font.getGlyphOrder()[:-1]
self.font.setGlyphOrder(badGlyphOrder)
with self.assertRaisesRegex(ttLib.TTLibError, "incorrect glyphOrder"):
glyfTable.reconstruct(self.transformedGlyfData, self.font)
def test_reconstruct_glyf_missing_glyphOrder(self):
glyfTable = WOFF2GlyfTable()
del self.font.glyphOrder
numGlyphs = self.font['maxp'].numGlyphs
del self.font['maxp']
glyfTable.reconstruct(self.transformedGlyfData, self.font)
expected = [".notdef"]
expected.extend(["glyph%.5d" % i for i in range(1, numGlyphs)])
self.assertEqual(expected, glyfTable.glyphOrder)
def test_reconstruct_loca_padded_4(self):
locaTable = self.font['loca'] = WOFF2LocaTable()
glyfTable = self.font['glyf'] = WOFF2GlyfTable()
glyfTable.reconstruct(self.transformedGlyfData, self.font)
glyfTable.padding = 4
glyfTable.compile(self.font)
data = locaTable.compile(self.font)
normLocaData = normalise_table(self.font, 'loca', glyfTable.padding)
self.assertEqual(normLocaData, data)
def test_reconstruct_loca_padded_2(self):
locaTable = self.font['loca'] = WOFF2LocaTable()
glyfTable = self.font['glyf'] = WOFF2GlyfTable()
glyfTable.reconstruct(self.transformedGlyfData, self.font)
glyfTable.padding = 2
glyfTable.compile(self.font)
data = locaTable.compile(self.font)
normLocaData = normalise_table(self.font, 'loca', glyfTable.padding)
self.assertEqual(normLocaData, data)
def test_reconstruct_loca_unpadded(self):
locaTable = self.font['loca'] = WOFF2LocaTable()
glyfTable = self.font['glyf'] = WOFF2GlyfTable()
glyfTable.reconstruct(self.transformedGlyfData, self.font)
glyfTable.compile(self.font)
data = locaTable.compile(self.font)
self.assertEqual(self.tables['loca'], data)
def test_reconstruct_glyf_header_not_enough_data(self):
with self.assertRaisesRegex(ttLib.TTLibError, "not enough 'glyf' data"):
WOFF2GlyfTable().reconstruct(b"", self.font)
def test_reconstruct_glyf_table_incorrect_size(self):
msg = "incorrect size of transformed 'glyf'"
with self.assertRaisesRegex(ttLib.TTLibError, msg):
WOFF2GlyfTable().reconstruct(self.transformedGlyfData + b"\x00", self.font)
with self.assertRaisesRegex(ttLib.TTLibError, msg):
WOFF2GlyfTable().reconstruct(self.transformedGlyfData[:-1], self.font)
def test_transform_glyf(self):
glyfTable = self.font['glyf']
data = glyfTable.transform(self.font)
self.assertEqual(self.transformedGlyfData, data)
def test_transform_glyf_incorrect_glyphOrder(self):
glyfTable = self.font['glyf']
badGlyphOrder = self.font.getGlyphOrder()[:-1]
del glyfTable.glyphOrder
self.font.setGlyphOrder(badGlyphOrder)
with self.assertRaisesRegex(ttLib.TTLibError, "incorrect glyphOrder"):
glyfTable.transform(self.font)
glyfTable.glyphOrder = badGlyphOrder
with self.assertRaisesRegex(ttLib.TTLibError, "incorrect glyphOrder"):
glyfTable.transform(self.font)
def test_transform_glyf_missing_glyphOrder(self):
glyfTable = self.font['glyf']
del glyfTable.glyphOrder
del self.font.glyphOrder
numGlyphs = self.font['maxp'].numGlyphs
del self.font['maxp']
glyfTable.transform(self.font)
expected = [".notdef"]
expected.extend(["glyph%.5d" % i for i in range(1, numGlyphs)])
self.assertEqual(expected, glyfTable.glyphOrder)
def test_roundtrip_glyf_reconstruct_and_transform(self):
glyfTable = WOFF2GlyfTable()
glyfTable.reconstruct(self.transformedGlyfData, self.font)
data = glyfTable.transform(self.font)
self.assertEqual(self.transformedGlyfData, data)
def test_roundtrip_glyf_transform_and_reconstruct(self):
glyfTable = self.font['glyf']
transformedData = glyfTable.transform(self.font)
newGlyfTable = WOFF2GlyfTable()
newGlyfTable.reconstruct(transformedData, self.font)
newGlyfTable.padding = 4
reconstructedData = newGlyfTable.compile(self.font)
normGlyfData = normalise_table(self.font, 'glyf', newGlyfTable.padding)
self.assertEqual(normGlyfData, reconstructedData)
if __name__ == "__main__":
unittest.main()
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