75 lines
2.2 KiB
Python
75 lines
2.2 KiB
Python
from fontTools.ttLib import TTFont
|
|
from fontTools.ttLib.scaleUpem import scale_upem
|
|
import difflib
|
|
import os
|
|
import shutil
|
|
import sys
|
|
import tempfile
|
|
import unittest
|
|
import pytest
|
|
|
|
|
|
class ScaleUpemTest(unittest.TestCase):
|
|
def setUp(self):
|
|
self.tempdir = None
|
|
self.num_tempfiles = 0
|
|
|
|
def tearDown(self):
|
|
if self.tempdir:
|
|
shutil.rmtree(self.tempdir)
|
|
|
|
@staticmethod
|
|
def get_path(test_file_or_folder):
|
|
parent_dir = os.path.dirname(__file__)
|
|
return os.path.join(parent_dir, "data", test_file_or_folder)
|
|
|
|
def temp_path(self, suffix):
|
|
self.temp_dir()
|
|
self.num_tempfiles += 1
|
|
return os.path.join(self.tempdir, "tmp%d%s" % (self.num_tempfiles, suffix))
|
|
|
|
def temp_dir(self):
|
|
if not self.tempdir:
|
|
self.tempdir = tempfile.mkdtemp()
|
|
|
|
def read_ttx(self, path):
|
|
lines = []
|
|
with open(path, "r", encoding="utf-8") as ttx:
|
|
for line in ttx.readlines():
|
|
# Elide ttFont attributes because ttLibVersion may change.
|
|
if line.startswith("<ttFont "):
|
|
lines.append("<ttFont>\n")
|
|
else:
|
|
lines.append(line.rstrip() + "\n")
|
|
return lines
|
|
|
|
def expect_ttx(self, font, expected_ttx, tables):
|
|
path = self.temp_path(suffix=".ttx")
|
|
font.saveXML(path, tables=tables)
|
|
actual = self.read_ttx(path)
|
|
expected = self.read_ttx(expected_ttx)
|
|
if actual != expected:
|
|
for line in difflib.unified_diff(
|
|
expected, actual, fromfile=expected_ttx, tofile=path
|
|
):
|
|
sys.stdout.write(line)
|
|
self.fail("TTX output is different from expected")
|
|
|
|
def test_scale_upem_ttf(self):
|
|
|
|
font = TTFont(self.get_path("I.ttf"))
|
|
tables = [table_tag for table_tag in font.keys() if table_tag != "head"]
|
|
|
|
scale_upem(font, 512)
|
|
|
|
expected_ttx_path = self.get_path("I-512upem.ttx")
|
|
self.expect_ttx(font, expected_ttx_path, tables)
|
|
|
|
def test_scale_upem_otf(self):
|
|
|
|
# Just test that it doesn't crash
|
|
|
|
font = TTFont(self.get_path("TestVGID-Regular.otf"))
|
|
|
|
scale_upem(font, 500)
|