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1from fontTools.ttLib import TTFont
2from fontTools.varLib.interpolatable import main as interpolatable_main
3import os
4import shutil
5import sys
6import tempfile
7import unittest
8
9try:
10    import scipy
11except:
12    scipy = None
13
14try:
15    import munkres
16except ImportError:
17    munkres = None
18
19
20@unittest.skipUnless(scipy or munkres, "scipy or munkres not installed")
21class InterpolatableTest(unittest.TestCase):
22    def __init__(self, methodName):
23        unittest.TestCase.__init__(self, methodName)
24        # Python 3 renamed assertRaisesRegexp to assertRaisesRegex,
25        # and fires deprecation warnings if a program uses the old name.
26        if not hasattr(self, "assertRaisesRegex"):
27            self.assertRaisesRegex = self.assertRaisesRegexp
28
29    def setUp(self):
30        self.tempdir = None
31        self.num_tempfiles = 0
32
33    def tearDown(self):
34        if self.tempdir:
35            shutil.rmtree(self.tempdir)
36
37    @staticmethod
38    def get_test_input(test_file_or_folder):
39        path, _ = os.path.split(__file__)
40        return os.path.join(path, "data", test_file_or_folder)
41
42    @staticmethod
43    def get_file_list(folder, suffix, prefix=''):
44        all_files = os.listdir(folder)
45        file_list = []
46        for p in all_files:
47            if p.startswith(prefix) and p.endswith(suffix):
48                file_list.append(os.path.abspath(os.path.join(folder, p)))
49        return file_list
50
51    def temp_path(self, suffix):
52        self.temp_dir()
53        self.num_tempfiles += 1
54        return os.path.join(self.tempdir,
55                            "tmp%d%s" % (self.num_tempfiles, suffix))
56
57    def temp_dir(self):
58        if not self.tempdir:
59            self.tempdir = tempfile.mkdtemp()
60
61    def compile_font(self, path, suffix, temp_dir):
62        ttx_filename = os.path.basename(path)
63        savepath = os.path.join(temp_dir, ttx_filename.replace('.ttx', suffix))
64        font = TTFont(recalcBBoxes=False, recalcTimestamp=False)
65        font.importXML(path)
66        font.save(savepath, reorderTables=None)
67        return font, savepath
68
69# -----
70# Tests
71# -----
72
73    def test_interpolatable_ttf(self):
74        suffix = '.ttf'
75        ttx_dir = self.get_test_input('master_ttx_interpolatable_ttf')
76
77        self.temp_dir()
78        ttx_paths = self.get_file_list(ttx_dir, '.ttx', 'TestFamily2-')
79        for path in ttx_paths:
80            self.compile_font(path, suffix, self.tempdir)
81
82        ttf_paths = self.get_file_list(self.tempdir, suffix)
83        self.assertIsNone(interpolatable_main(ttf_paths))
84
85
86    def test_interpolatable_otf(self):
87        suffix = '.otf'
88        ttx_dir = self.get_test_input('master_ttx_interpolatable_otf')
89
90        self.temp_dir()
91        ttx_paths = self.get_file_list(ttx_dir, '.ttx', 'TestFamily2-')
92        for path in ttx_paths:
93            self.compile_font(path, suffix, self.tempdir)
94
95        otf_paths = self.get_file_list(self.tempdir, suffix)
96        self.assertIsNone(interpolatable_main(otf_paths))
97
98
99if __name__ == "__main__":
100    sys.exit(unittest.main())
101