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                 if self.subset == '*':
  16                         return self.subset[0]
  17                 else:
  18                         return ",".join("%X" % ord(c) for (i, c) in enumerate(self.subset))
  19
  20         def get_profile_flags(self):
  21                 with io.open(self.profile_path, mode="r", encoding="utf-8") as f:
  22                     return f.read().splitlines();
  23
  24         def get_font_name(self):
  25                 font_base_name = os.path.basename(self.font_path)
  26                 font_base_name_parts = os.path.splitext(font_base_name)
  27                 profile_name = os.path.splitext(os.path.basename(self.profile_path))[0]
  28
  29                 if self.unicodes() == "*":
  30                         return "%s.%s.retain-all-codepoint%s" % (font_base_name_parts[0],
  31                                        profile_name,
  32                                        font_base_name_parts[1])
  33                 else:
  34                         return "%s.%s.%s%s" % (font_base_name_parts[0],
  35                                        profile_name,
  36                                        self.unicodes(),
  37                                        font_base_name_parts[1])
  38
  39         def get_font_extension(self):
  40                 font_base_name = os.path.basename(self.font_path)
  41                 font_base_name_parts = os.path.splitext(font_base_name)
  42                 return font_base_name_parts[1]
  43
  44 # A group of tests to perform on the subsetter. Each test
  45 # Identifies a font a subsetting profile, and a subset to be cut.
  46 class SubsetTestSuite:
  47
  48         def __init__(self, test_path, definition):
  49                 self.test_path = test_path
  50                 self.fonts = []
  51                 self.profiles = []
  52                 self.subsets = []
  53                 self._parse(definition)
  54
  55         def get_output_directory(self):
  56                 test_name = os.path.splitext(os.path.basename(self.test_path))[0]
  57                 data_dir = os.path.join(os.path.dirname(self.test_path), "..")
  58
  59                 output_dir = os.path.normpath(os.path.join(data_dir, "expected", test_name))
  60                 if not os.path.exists(output_dir):
  61                         os.mkdir(output_dir)
  62                 if not os.path.isdir(output_dir):
  63                         raise Exception("%s is not a directory." % output_dir)
  64
  65                 return output_dir
  66
  67         def tests(self):
  68                 for font in self.fonts:
  69                         font = os.path.join(self._base_path(), "fonts", font)
  70                         for profile in self.profiles:
  71                                 profile = os.path.join(self._base_path(), "profiles", profile)
  72                                 for subset in self.subsets:
  73                                         yield Test(font, profile, subset)
  74
  75         def _base_path(self):
  76                 return os.path.dirname(os.path.dirname(self.test_path))
  77
  78         def _parse(self, definition):
  79                 destinations = {
  80                                 "FONTS:": self.fonts,
  81                                 "PROFILES:": self.profiles,
  82                                 "SUBSETS:": self.subsets
  83                 }
  84
  85                 current_destination = None
  86                 for line in definition.splitlines():
  87                         line = line.strip()
  88
  89                         if line.startswith("#"):
  90                                 continue
  91
  92                         if not line:
  93                                 continue
  94
  95                         if line in destinations:
  96                                 current_destination = destinations[line]
  97                         elif current_destination is not None:
  98                                 current_destination.append(line)
  99                         else:
 100                                 raise Exception("Failed to parse test suite file.")