301d2db812
Add support for subsetting COLR table. The CPAL table does not need subsetting, but unused palettes should be pruned, this is not implemented however as it depends on COLR table, which in turn will not be updated after pruning CPAL.
107 lines
4.1 KiB
Python
107 lines
4.1 KiB
Python
from __future__ import print_function, division, absolute_import
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from fontTools.misc.py23 import *
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from fontTools import subset
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from fontTools.ttLib import TTFont
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import codecs
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import difflib
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import os
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import shutil
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import sys
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import tempfile
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import unittest
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class SubsetTest(unittest.TestCase):
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def __init__(self, methodName):
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unittest.TestCase.__init__(self, methodName)
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# Python 3 renamed assertRaisesRegexp to assertRaisesRegex,
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# and fires deprecation warnings if a program uses the old name.
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if not hasattr(self, "assertRaisesRegex"):
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self.assertRaisesRegex = self.assertRaisesRegexp
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def setUp(self):
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self.tempdir = None
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self.num_tempfiles = 0
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def tearDown(self):
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if self.tempdir:
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shutil.rmtree(self.tempdir)
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@staticmethod
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def getpath(testfile):
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path, _ = os.path.split(__file__)
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return os.path.join(path, "testdata", testfile)
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def temp_path(self, suffix):
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if not self.tempdir:
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self.tempdir = tempfile.mkdtemp()
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self.num_tempfiles += 1
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return os.path.join(self.tempdir,
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"tmp%d%s" % (self.num_tempfiles, suffix))
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def read_ttx(self, path):
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lines = []
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with codecs.open(path, "r", "utf-8") as ttx:
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for line in ttx.readlines():
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# Elide ttFont attributes because ttLibVersion may change,
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# and use os-native line separators so we can run difflib.
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if line.startswith("<ttFont "):
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lines.append("<ttFont>" + os.linesep)
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else:
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lines.append(line.rstrip() + os.linesep)
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return lines
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def expect_ttx(self, font, expected_ttx, tables):
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path = self.temp_path(suffix=".ttx")
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font.saveXML(path, quiet=True, tables=tables)
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actual = self.read_ttx(path)
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expected = self.read_ttx(expected_ttx)
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if actual != expected:
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for line in difflib.unified_diff(
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expected, actual, fromfile=path, tofile=expected_ttx):
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sys.stdout.write(line)
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self.fail("TTX output is different from expected")
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def compile_font(self, path, suffix):
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savepath = self.temp_path(suffix=suffix)
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font = TTFont(recalcBBoxes=False, recalcTimestamp=False)
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font.importXML(path, quiet=True)
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font.save(savepath, reorderTables=None)
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return font, savepath
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# -----
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# Tests
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# -----
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def test_no_notdef_outline_otf(self):
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_, fontpath = self.compile_font(self.getpath("TestOTF-Regular.ttx"), ".otf")
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subsetpath = self.temp_path(".otf")
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subset.main([fontpath, "--no-notdef-outline", "--gids=0", "--output-file=%s" % subsetpath])
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subsetfont = TTFont(subsetpath)
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self.expect_ttx(subsetfont, self.getpath("expect_no_notdef_outline_otf.ttx"), ["CFF "])
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def test_no_notdef_outline_cid(self):
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_, fontpath = self.compile_font(self.getpath("TestCID-Regular.ttx"), ".otf")
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subsetpath = self.temp_path(".otf")
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subset.main([fontpath, "--no-notdef-outline", "--gids=0", "--output-file=%s" % subsetpath])
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subsetfont = TTFont(subsetpath)
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self.expect_ttx(subsetfont, self.getpath("expect_no_notdef_outline_cid.ttx"), ["CFF "])
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def test_no_notdef_outline_ttf(self):
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_, fontpath = self.compile_font(self.getpath("TestTTF-Regular.ttx"), ".ttf")
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subsetpath = self.temp_path(".ttf")
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subset.main([fontpath, "--no-notdef-outline", "--gids=0", "--output-file=%s" % subsetpath])
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subsetfont = TTFont(subsetpath)
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self.expect_ttx(subsetfont, self.getpath("expect_no_notdef_outline_ttf.ttx"), ["glyf", "hmtx"])
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def test_subset_clr(self):
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_, fontpath = self.compile_font(self.getpath("TestCLR-Regular.ttx"), ".ttf")
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subsetpath = self.temp_path(".ttf")
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subset.main([fontpath, "--glyphs=smileface", "--output-file=%s" % subsetpath])
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subsetfont = TTFont(subsetpath)
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self.expect_ttx(subsetfont, self.getpath("expect_keep_colr.ttx"), ["GlyphOrder", "hmtx", "glyf", "COLR", "CPAL"])
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if __name__ == "__main__":
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unittest.main()
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