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#!/usr/bin/python
#
# Copyright 2015 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Time-consuming tests for general health of the fonts."""
import glob
import unittest
from fontTools import ttLib
from nototools import coverage
from nototools import unicode_data
import layout
def load_fonts():
"""Load all major fonts."""
all_font_files = (glob.glob('out/v2/RobotoTTF/*.ttf')
+ glob.glob('out/v2/RobotoCondensedTTF/*.ttf'))
all_fonts = [ttLib.TTFont(font) for font in all_font_files]
assert len(all_font_files) == 18
return all_font_files, all_fonts
class TestSpacingMarks(unittest.TestCase):
"""Tests that spacing marks are indeed spacing."""
def setUp(self):
self.font_files, _ = load_fonts()
charset = coverage.character_set(self.font_files[0])
self.marks_to_test = [char for char in charset
if unicode_data.category(char) in ['Lm', 'Sk']]
self.advance_cache = {}
def test_individual_spacing_marks(self):
"""Tests that spacing marks are spacing by themselves."""
for font in self.font_files:
print 'Testing %s for stand-alone spacing marks...' % font
for mark in self.marks_to_test:
mark = unichr(mark)
advances = layout.get_advances(mark, font)
assert len(advances) == 1
self.assertNotEqual(advances[0], 0)
def test_spacing_marks_in_combination(self):
"""Tests that spacing marks do not combine with base letters."""
for font in self.font_files:
print 'Testing %s for spacing marks in combination...' % font
for base_letter in (u'A\u00C6BCDEFGHIJKLMNO\u00D8\u01A0PRST'
u'U\u01AFVWXYZ'
u'a\u00E6bcdefghi\u0131j\u0237klmn'
u'o\u00F8\u01A1prs\u017Ftu\u01B0vwxyz'
u'\u03D2'):
print 'Testing %s combinations' % base_letter
for mark in self.marks_to_test:
if mark == 0x02DE:
# Skip rhotic hook, as it's perhaps OK for it to form
# ligatures
continue
mark = unichr(mark)
advances = layout.get_advances(base_letter + mark, font)
self.assertEqual(len(advances), 2,
'The sequence <%04X, %04X> combines, '
'but it should not' % (ord(base_letter), ord(mark)))
if __name__ == '__main__':
unittest.main()
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