test/test_language.py

   1 #!/usr/bin/env python
   2
   3 # $Id$
   4 # Authors: Engelbert Gruber <grubert@users.sourceforge.net>;
   5 #          David Goodger <goodger@python.org>
   6 # Copyright: This module has been placed in the public domain.
   7
   8 """
   9 Tests for language module completeness.
  10
  11 Specify a language code (e.g. "de") as a command-line parameter to test only
  12 that language.
  13 """
  14
  15 import sys
  16 import os
  17 import re
  18 import DocutilsTestSupport              # must be imported before docutils
  19 import docutils.languages
  20 import docutils.parsers.rst.languages
  21 from docutils.parsers.rst import states, directives, roles
  22 import docutils.utils, docutils.frontend
  23
  24 _settings = docutils.frontend.OptionParser().get_default_values()
  25 _reporter = docutils.utils.new_reporter('', _settings)
  26
  27 reference_language = 'en'
  28
  29
  30 class LanguageTestSuite(DocutilsTestSupport.CustomTestSuite):
  31
  32     language_module_pattern = re.compile('^([a-z]{2,3}(_[a-z]{2,8})*)\.py$')
  33
  34     def __init__(self, languages=None):
  35         DocutilsTestSupport.CustomTestSuite.__init__(self)
  36         if languages:
  37             self.languages = languages
  38         else:
  39             self.get_languages()
  40
  41     def get_languages(self):
  42         """
  43         Get installed language translations from docutils.languages and from
  44         docutils.parsers.rst.languages.
  45         """
  46         languages = {}
  47         for mod in (os.listdir(docutils.languages.__path__[0])
  48                     + os.listdir(docutils.parsers.rst.languages.__path__[0])):
  49             match = self.language_module_pattern.match(mod)
  50             if match:
  51                 languages[match.group(1)] = 1
  52         self.languages = languages.keys()
  53         # test language tag normalization:
  54         self.languages += ['en_gb', 'en_US', 'en-CA', 'de-DE', 'de-AT-1901',
  55                            'pt-BR', 'pt-foo-BR']
  56         # test that locally created language files are also loaded.
  57         # requires local_dummy_lang.py in test directory (testroot)
  58         # The local_dummy_lang.py contains all the fields from both
  59         # the docutils language tags and the parser.rst language tags
  60         self.languages += ['local_dummy_lang']
  61
  62     def generateTests(self):
  63         for language in self.languages:
  64             for method in LanguageTestCase.test_methods:
  65                 self.addTestCase(LanguageTestCase, method, None, None,
  66                                  id=language+'.py', language=language)
  67
  68
  69 class LanguageTestCase(DocutilsTestSupport.CustomTestCase):
  70
  71     test_methods = ['test_labels', 'test_bibliographic_fields',
  72                     'test_directives', 'test_roles']
  73     """Names of methods used to test each language."""
  74
  75     def __init__(self, *args, **kwargs):
  76         self.ref = docutils.languages.get_language(reference_language,
  77                                                    _reporter)
  78         self.language = kwargs['language']
  79         del kwargs['language']          # only wanted here
  80         DocutilsTestSupport.CustomTestCase.__init__(self, *args, **kwargs)
  81
  82     def _xor(self, ref_dict, l_dict):
  83         """
  84         Returns entries that are only in one dictionary.
  85         (missing_in_lang, more_than_in_ref).
  86         """
  87         missing  = []   # in ref but not in l.
  88         too_much = []   # in l but not in ref.
  89         for label in ref_dict.keys():
  90             if label not in l_dict:
  91                 missing.append(label)
  92         for label in l_dict.keys():
  93             if label not in ref_dict:
  94                 too_much.append(label)
  95         return (missing, too_much)
  96
  97     def _invert(self, adict):
  98         """Return an inverted (keys & values swapped) dictionary."""
  99         inverted = {}
 100         for key, value in adict.items():
 101             inverted[value] = key
 102         return inverted
 103
 104     def test_labels(self):
 105         try:
 106             module = docutils.languages.get_language(self.language, _reporter)
 107             if not module:
 108                 raise ImportError
 109         except ImportError:
 110             self.fail('No docutils.languages.%s module.' % self.language)
 111         missed, unknown = self._xor(self.ref.labels, module.labels)
 112         if missed or unknown:
 113             self.fail('Module docutils.languages.%s.labels:\n'
 114                       '    Missed: %s; Unknown: %s'
 115                       % (self.language, str(missed), str(unknown)))
 116
 117     def test_bibliographic_fields(self):
 118         try:
 119             module = docutils.languages.get_language(self.language, _reporter)
 120             if not module:
 121                 raise ImportError
 122         except ImportError:
 123             self.fail('No docutils.languages.%s module.' % self.language)
 124         missed, unknown = self._xor(
 125             self._invert(self.ref.bibliographic_fields),
 126             self._invert(module.bibliographic_fields))
 127         if missed or unknown:
 128             self.fail('Module docutils.languages.%s.bibliographic_fields:\n'
 129                       '    Missed: %s; Unknown: %s'
 130                       % (self.language, str(missed), str(unknown)))
 131
 132     def test_directives(self):
 133         try:
 134             module = docutils.parsers.rst.languages.get_language(
 135                 self.language)
 136             if not module:
 137                 raise ImportError
 138         except ImportError:
 139             self.fail('No docutils.parsers.rst.languages.%s module.'
 140                       % self.language)
 141         failures = []
 142         for d in module.directives.keys():
 143             try:
 144                 func, msg = directives.directive(d, module, None)
 145                 if not func:
 146                     failures.append('"%s": unknown directive' % d)
 147             except Exception, error:
 148                 failures.append('"%s": %s' % (d, error))
 149         inverted = self._invert(module.directives)
 150         canonical = directives._directive_registry.keys()
 151         canonical.sort()
 152         canonical.remove('restructuredtext-test-directive')
 153         for name in canonical:
 154             if name not in inverted:
 155                 failures.append('"%s": translation missing' % name)
 156         if failures:
 157             text = ('Module docutils.parsers.rst.languages.%s:\n    %s'
 158                     % (self.language, '\n    '.join(failures)))
 159             if type(text) is unicode:
 160                 text = text.encode('raw_unicode_escape')
 161             self.fail(text)
 162
 163     def test_roles(self):
 164         try:
 165             module = docutils.parsers.rst.languages.get_language(
 166                 self.language)
 167             if not module:
 168                 raise ImportError
 169             module.roles
 170         except ImportError:
 171             self.fail('No docutils.parsers.rst.languages.%s module.'
 172                       % self.language)
 173         except AttributeError:
 174             self.fail('No "roles" mapping in docutils.parsers.rst.languages.'
 175                       '%s module.' % self.language)
 176         failures = []
 177         for d in module.roles.values():
 178             try:
 179                 method = roles._role_registry[d]
 180                 #if not method:
 181                 #    failures.append('"%s": unknown role' % d)
 182             except KeyError, error:
 183                 failures.append('"%s": %s' % (d, error))
 184         inverted = self._invert(module.roles)
 185         canonical = roles._role_registry.keys()
 186         canonical.sort()
 187         canonical.remove('restructuredtext-unimplemented-role')
 188         for name in canonical:
 189             if name not in inverted:
 190                 failures.append('"%s": translation missing' % name)
 191         if failures:
 192             text = ('Module docutils.parsers.rst.languages.%s:\n    %s'
 193                     % (self.language, '\n    '.join(failures)))
 194             if type(text) is unicode:
 195                 text = text.encode('raw_unicode_escape')
 196             self.fail(text)
 197
 198 languages_to_test = []
 199
 200 def suite():
 201     s = LanguageTestSuite(languages_to_test)
 202     s.generateTests()
 203     return s
 204
 205 def get_language_arguments():
 206     while len(sys.argv) > 1:
 207         last = sys.argv[-1]
 208         if last.startswith('-'):
 209             break
 210         languages_to_test.append(last)
 211         sys.argv.pop()
 212     languages_to_test.reverse()
 213
 214
 215 if __name__ == '__main__':
 216     get_language_arguments()
 217     import unittest
 218     unittest.main(defaultTest='suite')
 219
 220 # vim: set et ts=4 ai :