test/subset/subset_test_suite.py

   1 #!/usr/bin/env python3
   2
   3 import os
   4
   5 # A single test in a subset test suite. Identifies a font
   6 # a subsetting profile, and a subset to be cut.
   7 class Test:
   8         def __init__(self, font_path, profile_path, subset):
   9                 self.font_path = font_path
  10                 self.profile_path = profile_path
  11                 self.subset = subset
  12
  13         def unicodes(self):
  14                 if self.subset == '*':
  15                         return self.subset[0]
  16                 else:
  17                         return ",".join("%X" % ord(c) for (i, c) in enumerate(self.subset))
  18
  19         def get_profile_flags(self):
  20                 with open (self.profile_path, mode="r", encoding="utf-8") as f:
  21                     return f.read().splitlines()
  22
  23         def get_font_name(self):
  24                 font_base_name = os.path.basename(self.font_path)
  25                 font_base_name_parts = os.path.splitext(font_base_name)
  26                 profile_name = os.path.splitext(os.path.basename(self.profile_path))[0]
  27
  28                 if self.unicodes() == "*":
  29                         return "%s.%s.retain-all-codepoint%s" % (font_base_name_parts[0],
  30                                        profile_name,
  31                                        font_base_name_parts[1])
  32                 else:
  33                         return "%s.%s.%s%s" % (font_base_name_parts[0],
  34                                        profile_name,
  35                                        self.unicodes(),
  36                                        font_base_name_parts[1])
  37
  38         def get_font_extension(self):
  39                 font_base_name = os.path.basename(self.font_path)
  40                 font_base_name_parts = os.path.splitext(font_base_name)
  41                 return font_base_name_parts[1]
  42
  43 # A group of tests to perform on the subsetter. Each test
  44 # Identifies a font a subsetting profile, and a subset to be cut.
  45 class SubsetTestSuite:
  46
  47         def __init__(self, test_path, definition):
  48                 self.test_path = test_path
  49                 self.fonts = []
  50                 self.profiles = []
  51                 self.subsets = []
  52                 self._parse(definition)
  53
  54         def get_output_directory(self):
  55                 test_name = os.path.splitext(os.path.basename(self.test_path))[0]
  56                 data_dir = os.path.join(os.path.dirname(self.test_path), "..")
  57
  58                 output_dir = os.path.normpath(os.path.join(data_dir, "expected", test_name))
  59                 if not os.path.exists(output_dir):
  60                         os.mkdir(output_dir)
  61                 if not os.path.isdir(output_dir):
  62                         raise Exception("%s is not a directory." % output_dir)
  63
  64                 return output_dir
  65
  66         def tests(self):
  67                 for font in self.fonts:
  68                         font = os.path.join(self._base_path(), "fonts", font)
  69                         for profile in self.profiles:
  70                                 profile = os.path.join(self._base_path(), "profiles", profile)
  71                                 for subset in self.subsets:
  72                                         yield Test(font, profile, subset)
  73
  74         def _base_path(self):
  75                 return os.path.dirname(os.path.dirname(self.test_path))
  76
  77         def _parse(self, definition):
  78                 destinations = {
  79                                 "FONTS:": self.fonts,
  80                                 "PROFILES:": self.profiles,
  81                                 "SUBSETS:": self.subsets
  82                 }
  83
  84                 current_destination = None
  85                 for line in definition.splitlines():
  86                         line = line.strip()
  87
  88                         if line.startswith("#"):
  89                                 continue
  90
  91                         if not line:
  92                                 continue
  93
  94                         if line in destinations:
  95                                 current_destination = destinations[line]
  96                         elif current_destination is not None:
  97                                 current_destination.append(line)
  98                         else:
  99                                 raise Exception("Failed to parse test suite file.")