test/subset/subset_test_suite.py

   1 #!/usr/bin/env python
   2
   3 import io
   4 import os
   5
   6 # A single test in a subset test suite. Identifies a font
   7 # a subsetting profile, and a subset to be cut.
   8 class Test:
   9         def __init__(self, font_path, profile_path, subset):
  10                 self.font_path = font_path
  11                 self.profile_path = profile_path
  12                 self.subset = subset
  13
  14         def unicodes(self):
  15                 return ",".join("%X" % ord(c) for (i, c) in enumerate(self.subset))
  16
  17         def get_profile_flags(self):
  18                 with io.open(self.profile_path, mode="r", encoding="utf-8") as f:
  19                     return f.read().splitlines();
  20
  21         def get_font_name(self):
  22                 font_base_name = os.path.basename(self.font_path)
  23                 font_base_name_parts = os.path.splitext(font_base_name)
  24                 profile_name = os.path.splitext(os.path.basename(self.profile_path))[0]
  25
  26                 return "%s.%s.%s%s" % (font_base_name_parts[0],
  27                                        profile_name,
  28                                        self.unicodes(),
  29                                        font_base_name_parts[1])
  30
  31         def get_font_extension(self):
  32                 font_base_name = os.path.basename(self.font_path)
  33                 font_base_name_parts = os.path.splitext(font_base_name)
  34                 return font_base_name_parts[1]
  35
  36 # A group of tests to perform on the subsetter. Each test
  37 # Identifies a font a subsetting profile, and a subset to be cut.
  38 class SubsetTestSuite:
  39
  40         def __init__(self, test_path, definition):
  41                 self.test_path = test_path
  42                 self.fonts = set()
  43                 self.profiles = set()
  44                 self.subsets = set()
  45                 self._parse(definition)
  46
  47         def get_output_directory(self):
  48                 test_name = os.path.splitext(os.path.basename(self.test_path))[0]
  49                 data_dir = os.path.join(os.path.dirname(self.test_path), "..")
  50
  51                 output_dir = os.path.normpath(os.path.join(data_dir, "expected", test_name))
  52                 if not os.path.exists(output_dir):
  53                         os.mkdir(output_dir)
  54                 if not os.path.isdir(output_dir):
  55                         raise Exception("%s is not a directory." % output_dir)
  56
  57                 return output_dir
  58
  59         def tests(self):
  60                 for font in self.fonts:
  61                         font = os.path.join(self._base_path(), "fonts", font)
  62                         for profile in self.profiles:
  63                                 profile = os.path.join(self._base_path(), "profiles", profile)
  64                                 for subset in self.subsets:
  65                                         yield Test(font, profile, subset)
  66
  67         def _base_path(self):
  68                 return os.path.dirname(os.path.dirname(self.test_path))
  69
  70         def _parse(self, definition):
  71                 destinations = {
  72                                 "FONTS:": self.fonts,
  73                                 "PROFILES:": self.profiles,
  74                                 "SUBSETS:": self.subsets
  75                 }
  76
  77                 current_destination = None
  78                 for line in definition.splitlines():
  79                         line = line.strip()
  80
  81                         if line.startswith("#"):
  82                                 continue
  83
  84                         if not line:
  85                                 continue
  86
  87                         if line in destinations:
  88                                 current_destination = destinations[line]
  89                         elif current_destination is not None:
  90                                 current_destination.add(line)
  91                         else:
  92                                 raise Exception("Failed to parse test suite file.")