| from __future__ import print_function, division, absolute_import |
| from fontTools.misc.py23 import * |
| from fontTools.ttLib import TTFont |
| from fontTools.varLib import build |
| from fontTools.varLib import main as varLib_main |
| import difflib |
| import os |
| import shutil |
| import sys |
| import tempfile |
| import unittest |
| |
| |
| class BuildTest(unittest.TestCase): |
| def __init__(self, methodName): |
| unittest.TestCase.__init__(self, methodName) |
| # Python 3 renamed assertRaisesRegexp to assertRaisesRegex, |
| # and fires deprecation warnings if a program uses the old name. |
| if not hasattr(self, "assertRaisesRegex"): |
| self.assertRaisesRegex = self.assertRaisesRegexp |
| |
| def setUp(self): |
| self.tempdir = None |
| self.num_tempfiles = 0 |
| |
| def tearDown(self): |
| if self.tempdir: |
| shutil.rmtree(self.tempdir) |
| |
| @staticmethod |
| def get_test_input(test_file_or_folder): |
| path, _ = os.path.split(__file__) |
| return os.path.join(path, "data", test_file_or_folder) |
| |
| @staticmethod |
| def get_test_output(test_file_or_folder): |
| path, _ = os.path.split(__file__) |
| return os.path.join(path, "data", "test_results", test_file_or_folder) |
| |
| @staticmethod |
| def get_file_list(folder, suffix, prefix=''): |
| all_files = os.listdir(folder) |
| file_list = [] |
| for p in all_files: |
| if p.startswith(prefix) and p.endswith(suffix): |
| file_list.append(os.path.abspath(os.path.join(folder, p))) |
| return file_list |
| |
| 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, |
| # and use os-native line separators so we can run difflib. |
| if line.startswith("<ttFont "): |
| lines.append("<ttFont>" + os.linesep) |
| else: |
| lines.append(line.rstrip() + os.linesep) |
| 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 check_ttx_dump(self, font, expected_ttx, tables, suffix): |
| """Ensure the TTX dump is the same after saving and reloading the font.""" |
| path = self.temp_path(suffix=suffix) |
| font.save(path) |
| self.expect_ttx(TTFont(path), expected_ttx, tables) |
| |
| def compile_font(self, path, suffix, temp_dir): |
| ttx_filename = os.path.basename(path) |
| savepath = os.path.join(temp_dir, ttx_filename.replace('.ttx', suffix)) |
| font = TTFont(recalcBBoxes=False, recalcTimestamp=False) |
| font.importXML(path) |
| font.save(savepath, reorderTables=None) |
| return font, savepath |
| |
| def _run_varlib_build_test(self, designspace_name, font_name, tables, |
| expected_ttx_name): |
| suffix = '.ttf' |
| ds_path = self.get_test_input(designspace_name + '.designspace') |
| ufo_dir = self.get_test_input('master_ufo') |
| ttx_dir = self.get_test_input('master_ttx_interpolatable_ttf') |
| |
| self.temp_dir() |
| ttx_paths = self.get_file_list(ttx_dir, '.ttx', font_name + '-') |
| for path in ttx_paths: |
| self.compile_font(path, suffix, self.tempdir) |
| |
| finder = lambda s: s.replace(ufo_dir, self.tempdir).replace('.ufo', suffix) |
| varfont, model, _ = build(ds_path, finder) |
| |
| expected_ttx_path = self.get_test_output(expected_ttx_name + '.ttx') |
| self.expect_ttx(varfont, expected_ttx_path, tables) |
| self.check_ttx_dump(varfont, expected_ttx_path, tables, suffix) |
| # ----- |
| # Tests |
| # ----- |
| |
| def test_varlib_build_ttf(self): |
| """Designspace file contains <axes> element.""" |
| self._run_varlib_build_test( |
| designspace_name='Build', |
| font_name='TestFamily', |
| tables=['GDEF', 'HVAR', 'MVAR', 'fvar', 'gvar'], |
| expected_ttx_name='Build' |
| ) |
| |
| def test_varlib_build_no_axes_ttf(self): |
| """Designspace file does not contain an <axes> element.""" |
| self._run_varlib_build_test( |
| designspace_name='InterpolateLayout3', |
| font_name='TestFamily2', |
| tables=['GDEF', 'HVAR', 'MVAR', 'fvar', 'gvar'], |
| expected_ttx_name='Build3' |
| ) |
| |
| def test_varlib_avar_single_axis(self): |
| """Designspace file contains a 'weight' axis with <map> elements |
| modifying the normalization mapping. An 'avar' table is generated. |
| """ |
| test_name = 'BuildAvarSingleAxis' |
| self._run_varlib_build_test( |
| designspace_name=test_name, |
| font_name='TestFamily3', |
| tables=['avar'], |
| expected_ttx_name=test_name |
| ) |
| |
| def test_varlib_avar_with_identity_maps(self): |
| """Designspace file contains two 'weight' and 'width' axes both with |
| <map> elements. |
| |
| The 'width' axis only contains identity mappings, however the resulting |
| avar segment will not be empty but will contain the default axis value |
| maps: {-1.0: -1.0, 0.0: 0.0, 1.0: 1.0}. |
| |
| This is to to work around an issue with some rasterizers: |
| https://github.com/googlei18n/fontmake/issues/295 |
| https://github.com/fonttools/fonttools/issues/1011 |
| """ |
| test_name = 'BuildAvarIdentityMaps' |
| self._run_varlib_build_test( |
| designspace_name=test_name, |
| font_name='TestFamily3', |
| tables=['avar'], |
| expected_ttx_name=test_name |
| ) |
| |
| def test_varlib_avar_empty_axis(self): |
| """Designspace file contains two 'weight' and 'width' axes, but |
| only one axis ('weight') has some <map> elements. |
| |
| Even if no <map> elements are defined for the 'width' axis, the |
| resulting avar segment still contains the default axis value maps: |
| {-1.0: -1.0, 0.0: 0.0, 1.0: 1.0}. |
| |
| This is again to to work around an issue with some rasterizers: |
| https://github.com/googlei18n/fontmake/issues/295 |
| https://github.com/fonttools/fonttools/issues/1011 |
| """ |
| test_name = 'BuildAvarEmptyAxis' |
| self._run_varlib_build_test( |
| designspace_name=test_name, |
| font_name='TestFamily3', |
| tables=['avar'], |
| expected_ttx_name=test_name |
| ) |
| |
| def test_varlib_main_ttf(self): |
| """Mostly for testing varLib.main() |
| """ |
| suffix = '.ttf' |
| ds_path = self.get_test_input('Build.designspace') |
| ufo_dir = self.get_test_input('master_ufo') |
| ttx_dir = self.get_test_input('master_ttx_interpolatable_ttf') |
| |
| self.temp_dir() |
| ttf_dir = os.path.join(self.tempdir, 'master_ttf_interpolatable') |
| os.makedirs(ttf_dir) |
| ttx_paths = self.get_file_list(ttx_dir, '.ttx', 'TestFamily-') |
| for path in ttx_paths: |
| self.compile_font(path, suffix, ttf_dir) |
| |
| ds_copy = os.path.join(self.tempdir, 'BuildMain.designspace') |
| shutil.copy2(ds_path, ds_copy) |
| varLib_main([ds_copy]) |
| |
| varfont_path = os.path.splitext(ds_copy)[0] + '-VF' + suffix |
| varfont = TTFont(varfont_path) |
| tables = [table_tag for table_tag in varfont.keys() if table_tag != 'head'] |
| expected_ttx_path = self.get_test_output('BuildMain.ttx') |
| self.expect_ttx(varfont, expected_ttx_path, tables) |
| |
| |
| if __name__ == "__main__": |
| sys.exit(unittest.main()) |
