1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
#!/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.
"""Test assumptions that web fonts rely on."""
import unittest
from nototools import font_data
import common_tests
FONTS = common_tests.load_fonts(
['out/web/*.ttf'],
expected_count=18)
class TestItalicAngle(common_tests.TestItalicAngle):
loaded_fonts = FONTS
class TestMetaInfo(common_tests.TestMetaInfo):
loaded_fonts = FONTS
mark_heavier_as_bold = True
# Since different font files are hinted at different times, the actual
# outlines differ slightly. So we are keeping the version numbers as a hint.
test_version_numbers = None
class TestNames(common_tests.TestNames):
loaded_fonts = FONTS
family_name = 'Roboto'
mark_heavier_as_bold = True
class TestDigitWidths(common_tests.TestDigitWidths):
loaded_fonts = FONTS
# disable this test while *.frac and *superior glyphs are separate
# the webfont glyph subset contains *.frac but not *superior
test_superscript_digits = False
class TestCharacterCoverage(common_tests.TestCharacterCoverage):
loaded_fonts = FONTS
include = frozenset([
0xEE01, 0xEE02, 0xF6C3]) # legacy PUA
exclude = frozenset([
0x2072, 0x2073, 0x208F] + # unassigned characters
range(0xE000, 0xF8FF + 1) + range(0xF0000, 0x10FFFF + 1) # other PUA
) - include # don't exclude legacy PUA
class TestVerticalMetrics(common_tests.TestVerticalMetrics):
loaded_fonts = FONTS
expected_head_yMin = -555
expected_head_yMax = 2163
expected_hhea_descent = -500
expected_hhea_ascent = 1900
expected_hhea_lineGap = 0
expected_os2_sTypoDescender = -512
expected_os2_sTypoAscender = 1536
expected_os2_sTypoLineGap = 102
expected_os2_usWinDescent = 512
expected_os2_usWinAscent = 1946
class TestLigatures(common_tests.TestLigatures):
loaded_fonts = FONTS
class TestHints(unittest.TestCase):
"""Tests hints."""
def setUp(self):
self.fontfiles, self.fonts = FONTS
def test_existance_of_hints(self):
"""Tests all glyphs and makes sure non-composite ones have hints."""
missing_hints = []
for font in self.fonts:
glyf_table = font['glyf']
for glyph_name in font.getGlyphOrder():
glyph = glyf_table[glyph_name]
if glyph.numberOfContours <= 0: # composite or empty glyph
continue
if len(glyph.program.bytecode) <= 0:
missing_hints.append(
(glyph_name, font_data.font_name(font)))
self.assertTrue(missing_hints == [])
def test_height_of_lowercase_o(self):
"""Tests the height of the lowercase o in low resolutions."""
for fontfile in self.fontfiles:
for size in range(8, 30): # Kind of arbitrary
o_height = common_tests.get_rendered_char_height(
fontfile, size, 'o')
n_height = common_tests.get_rendered_char_height(
fontfile, size, 'n')
self.assertEqual(o_height, n_height)
if __name__ == '__main__':
unittest.main()
|
