python类metadata()的实例源码

def test_write_pkg_file(self):
        # Check DistributionMetadata handling of Unicode fields
        tmp_dir = self.mkdtemp()
        my_file = os.path.join(tmp_dir, 'f')
        klass = Distribution

        dist = klass(attrs={'author': u'Mister Café',
                            'name': 'my.package',
                            'maintainer': u'Café Junior',
                            'description': u'Café torréfié',
                            'long_description': u'Héhéhé'})

        # let's make sure the file can be written
        # with Unicode fields. they are encoded with
        # PKG_INFO_ENCODING
        dist.metadata.write_pkg_file(open(my_file, 'w'))

        # regular ascii is of course always usable
        dist = klass(attrs={'author': 'Mister Cafe',
                            'name': 'my.package',
                            'maintainer': 'Cafe Junior',
                            'description': 'Cafe torrefie',
                            'long_description': 'Hehehe'})

        my_file2 = os.path.join(tmp_dir, 'f2')
        dist.metadata.write_pkg_file(open(my_file2, 'w'))

def test_finalize_options(self):
        attrs = {'keywords': 'one,two',
                 'platforms': 'one,two'}

        dist = Distribution(attrs=attrs)
        dist.finalize_options()

        # finalize_option splits platforms and keywords
        self.assertEqual(dist.metadata.platforms, ['one', 'two'])
        self.assertEqual(dist.metadata.keywords, ['one', 'two'])

def test_provides(self):
        attrs = {"name": "package",
                 "version": "1.0",
                 "provides": ["package", "package.sub"]}
        dist = Distribution(attrs)
        self.assertEqual(dist.metadata.get_provides(),
                         ["package", "package.sub"])
        self.assertEqual(dist.get_provides(),
                         ["package", "package.sub"])
        meta = self.format_metadata(dist)
        self.assertIn("Metadata-Version: 1.1", meta)
        self.assertNotIn("requires:", meta.lower())
        self.assertNotIn("obsoletes:", meta.lower())

def test_requires(self):
        attrs = {"name": "package",
                 "version": "1.0",
                 "requires": ["other", "another (==1.0)"]}
        dist = Distribution(attrs)
        self.assertEqual(dist.metadata.get_requires(),
                         ["other", "another (==1.0)"])
        self.assertEqual(dist.get_requires(),
                         ["other", "another (==1.0)"])
        meta = self.format_metadata(dist)
        self.assertIn("Metadata-Version: 1.1", meta)
        self.assertNotIn("provides:", meta.lower())
        self.assertIn("Requires: other", meta)
        self.assertIn("Requires: another (==1.0)", meta)
        self.assertNotIn("obsoletes:", meta.lower())

def test_obsoletes(self):
        attrs = {"name": "package",
                 "version": "1.0",
                 "obsoletes": ["other", "another (<1.0)"]}
        dist = Distribution(attrs)
        self.assertEqual(dist.metadata.get_obsoletes(),
                         ["other", "another (<1.0)"])
        self.assertEqual(dist.get_obsoletes(),
                         ["other", "another (<1.0)"])
        meta = self.format_metadata(dist)
        self.assertIn("Metadata-Version: 1.1", meta)
        self.assertNotIn("provides:", meta.lower())
        self.assertNotIn("requires:", meta.lower())
        self.assertIn("Obsoletes: other", meta)
        self.assertIn("Obsoletes: another (<1.0)", meta)

def test_read_metadata(self):
        attrs = {"name": "package",
                 "version": "1.0",
                 "long_description": "desc",
                 "description": "xxx",
                 "download_url": "http://example.com",
                 "keywords": ['one', 'two'],
                 "requires": ['foo']}

        dist = Distribution(attrs)
        metadata = dist.metadata

        # write it then reloads it
        PKG_INFO = StringIO.StringIO()
        metadata.write_pkg_file(PKG_INFO)
        PKG_INFO.seek(0)
        metadata.read_pkg_file(PKG_INFO)

        self.assertEqual(metadata.name, "package")
        self.assertEqual(metadata.version, "1.0")
        self.assertEqual(metadata.description, "xxx")
        self.assertEqual(metadata.download_url, 'http://example.com')
        self.assertEqual(metadata.keywords, ['one', 'two'])
        self.assertEqual(metadata.platforms, ['UNKNOWN'])
        self.assertEqual(metadata.obsoletes, None)
        self.assertEqual(metadata.requires, ['foo'])