diff options
author | Roozbeh Pournader <roozbeh@google.com> | 2015-01-07 22:13:51 -0800 |
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committer | James Godfrey-Kittle <jamesgk@google.com> | 2015-04-16 12:16:25 -0700 |
commit | 1f5e1d448f49e5cfd2abecdb0fb57e75ad174741 (patch) | |
tree | 9870da8f87a8affeb909704dc60424a83811e274 /scripts/common_tests.py | |
parent | fe99ea44799ee2243c8bafd56d9a835884b3ed5b (diff) |
Refactor tests to a reusable structure.
Tests that are common to some targets are not moved to
common_tests.py, with target-specific tests basically inheriting its
classes and modifying them.
The web tests are not refactored yet.
Diffstat (limited to 'scripts/common_tests.py')
-rw-r--r-- | scripts/common_tests.py | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/scripts/common_tests.py b/scripts/common_tests.py new file mode 100644 index 0000000..8fff95c --- /dev/null +++ b/scripts/common_tests.py @@ -0,0 +1,191 @@ +"""Common tests for different targets.""" + +import glob +import unittest + +from fontTools import ttLib +from nototools import coverage +from nototools import font_data + +import layout +import roboto_data + + +def load_fonts(patterns, expected_count=None): + """Load all fonts specified in the patterns. + + Also assert that the number of the fonts found is exactly the same as + expected_count.""" + all_font_files = [] + for pattern in patterns: + all_font_files += glob.glob(pattern) + all_fonts = [ttLib.TTFont(font) for font in all_font_files] + if expected_count: + assert len(all_font_files) == expected_count + return all_font_files, all_fonts + + +class FontTest(unittest.TestCase): + """Parent class for all font tests.""" + loaded_fonts = None + + +class TestItalicAngle(FontTest): + """Test the italic angle of fonts.""" + + def setUp(self): + _, self.fonts = self.loaded_fonts + + def test_italic_angle(self): + """Tests the italic angle of fonts to be correct.""" + for font in self.fonts: + post_table = font['post'] + if 'Italic' in font_data.font_name(font): + expected_angle = -12.0 + else: + expected_angle = 0.0 + self.assertEqual(post_table.italicAngle, expected_angle) + + +class TestMetaInfo(FontTest): + """Test various meta information.""" + + def setUp(self): + _, self.fonts = self.loaded_fonts + + def test_mac_style(self): + """Tests the macStyle of the fonts to be correct. + + Bug: https://code.google.com/a/google.com/p/roboto/issues/detail?id=8 + """ + for font in self.fonts: + font_name = font_data.font_name(font) + bold = ('Bold' in font_name) or ('Black' in font_name) + italic = 'Italic' in font_name + expected_mac_style = (italic << 1) | bold + self.assertEqual(font['head'].macStyle, expected_mac_style) + + def test_fs_type(self): + """Tests the fsType of the fonts to be 0. + + fsType of 0 marks the font free for installation, embedding, etc. + + Bug: https://code.google.com/a/google.com/p/roboto/issues/detail?id=29 + """ + for font in self.fonts: + self.assertEqual(font['OS/2'].fsType, 0) + + def test_vendor_id(self): + """Tests the vendor ID of the fonts to be 'GOOG'.""" + for font in self.fonts: + self.assertEqual(font['OS/2'].achVendID, 'GOOG') + + def test_us_weight(self): + "Tests the usWeight of the fonts to be correct.""" + for font in self.fonts: + weight = roboto_data.extract_weight_name(font_data.font_name(font)) + expected_numeric_weight = roboto_data.WEIGHTS[weight] + self.assertEqual( + font['OS/2'].usWeightClass, + expected_numeric_weight) + + def test_version_numbers(self): + "Tests the two version numbers of the font to be correct.""" + for font in self.fonts: + build_number = roboto_data.get_build_number() + expected_version = '2.' + build_number + version = font_data.font_version(font) + usable_part_of_version = version.split(';')[0] + self.assertEqual(usable_part_of_version, + 'Version ' + expected_version) + + revision = font_data.printable_font_revision(font, accuracy=5) + self.assertEqual(revision, expected_version) + + +class TestDigitWidths(FontTest): + """Tests the width of digits.""" + + def setUp(self): + _, self.fonts = self.loaded_fonts + self.digits = [ + 'zero', 'one', 'two', 'three', 'four', + 'five', 'six', 'seven', 'eight', 'nine'] + + def test_digit_widths(self): + """Tests all decimal digits to make sure they have the same width.""" + for font in self.fonts: + hmtx_table = font['hmtx'] + widths = [hmtx_table[digit][0] for digit in self.digits] + self.assertEqual(len(set(widths)), 1) + + +class TestCharacterCoverage(FontTest): + """Tests character coverage.""" + + def setUp(self): + _, self.fonts = self.loaded_fonts + self.LEGACY_PUA = frozenset({0xEE01, 0xEE02, 0xF6C3}) + + def test_inclusion_of_legacy_pua(self): + """Tests that legacy PUA characters remain in the fonts.""" + for font in self.fonts: + charset = coverage.character_set(font) + for char in self.LEGACY_PUA: + self.assertIn(char, charset) + + def test_non_inclusion_of_other_pua(self): + """Tests that there are not other PUA characters except legacy ones.""" + for font in self.fonts: + charset = coverage.character_set(font) + pua_chars = { + char for char in charset + if 0xE000 <= char <= 0xF8FF or 0xF0000 <= char <= 0x10FFFF} + self.assertTrue(pua_chars <= self.LEGACY_PUA) + + def test_lack_of_unassigned_chars(self): + """Tests that unassigned characters are not in the fonts.""" + for font in self.fonts: + charset = coverage.character_set(font) + self.assertNotIn(0x2072, charset) + self.assertNotIn(0x2073, charset) + self.assertNotIn(0x208F, charset) + + def test_inclusion_of_sound_recording_copyright(self): + """Tests that sound recording copyright symbol is in the fonts.""" + for font in self.fonts: + charset = coverage.character_set(font) + self.assertIn( + 0x2117, charset, # SOUND RECORDING COPYRIGHT + 'U+2117 not found in %s.' % font_data.font_name(font)) + + +class TestLigatures(FontTest): + """Tests formation or lack of formation of ligatures.""" + + def setUp(self): + self.fontfiles, _ = self.loaded_fonts + + def test_lack_of_ff_ligature(self): + """Tests that the ff ligature is not formed by default.""" + for fontfile in self.fontfiles: + advances = layout.get_advances('ff', fontfile) + self.assertEqual(len(advances), 2) + + +class TestVerticalMetrics(FontTest): + """Test the vertical metrics of fonts.""" + + def setUp(self): + _, self.fonts = self.loaded_fonts + + def test_ymin_ymax(self): + """Tests yMin and yMax to be equal to Roboto v1 values. + + Android requires this, and web fonts expect this. + """ + for font in self.fonts: + head_table = font['head'] + self.assertEqual(head_table.yMin, -555) + self.assertEqual(head_table.yMax, 2163) + |