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How to use guess_type method in autotest

Best Python code snippet using autotest_python
test_mimetypes.py
Source:test_mimetypes.py
...25    def setUp(self):26        self.db = mimetypes.MimeTypes()27    def test_default_data(self):28        eq = self.assertEqual29        eq(self.db.guess_type("foo.html"), ("text/html", None))30        eq(self.db.guess_type("foo.HTML"), ("text/html", None))31        eq(self.db.guess_type("foo.tgz"), ("application/x-tar", "gzip"))32        eq(self.db.guess_type("foo.tar.gz"), ("application/x-tar", "gzip"))33        eq(self.db.guess_type("foo.tar.Z"), ("application/x-tar", "compress"))34        eq(self.db.guess_type("foo.tar.bz2"), ("application/x-tar", "bzip2"))35        eq(self.db.guess_type("foo.tar.xz"), ("application/x-tar", "xz"))36    def test_data_urls(self):37        eq = self.assertEqual38        guess_type = self.db.guess_type39        eq(guess_type("data:invalidDataWithoutComma"), (None, None))40        eq(guess_type("data:,thisIsTextPlain"), ("text/plain", None))41        eq(guess_type("data:;base64,thisIsTextPlain"), ("text/plain", None))42        eq(guess_type("data:text/x-foo,thisIsTextXFoo"), ("text/x-foo", None))43    def test_file_parsing(self):44        eq = self.assertEqual45        sio = io.StringIO("x-application/x-unittest pyunit\n")46        self.db.readfp(sio)47        eq(self.db.guess_type("foo.pyunit"),48           ("x-application/x-unittest", None))49        eq(self.db.guess_extension("x-application/x-unittest"), ".pyunit")50    def test_read_mime_types(self):51        eq = self.assertEqual52        # Unreadable file returns None53        self.assertIsNone(mimetypes.read_mime_types("non-existent"))54        with os_helper.temp_dir() as directory:55            data = "x-application/x-unittest pyunit\n"56            file = pathlib.Path(directory, "sample.mimetype")57            file.write_text(data, encoding="utf-8")58            mime_dict = mimetypes.read_mime_types(file)59            eq(mime_dict[".pyunit"], "x-application/x-unittest")60        # bpo-41048: read_mime_types should read the rule file with 'utf-8' encoding.61        # Not with locale encoding. _bootlocale has been imported because io.open(...)62        # uses it.63        data = "application/no-mans-land  Fran\u00E7ais"64        filename = "filename"65        fp = io.StringIO(data)66        with unittest.mock.patch.object(mimetypes, 'open',67                                        return_value=fp) as mock_open:68            mime_dict = mimetypes.read_mime_types(filename)69            mock_open.assert_called_with(filename, encoding='utf-8')70        eq(mime_dict[".FranÃ§ais"], "application/no-mans-land")71    def test_non_standard_types(self):72        eq = self.assertEqual73        # First try strict74        eq(self.db.guess_type('foo.xul', strict=True), (None, None))75        eq(self.db.guess_extension('image/jpg', strict=True), None)76        # And then non-strict77        eq(self.db.guess_type('foo.xul', strict=False), ('text/xul', None))78        eq(self.db.guess_type('foo.XUL', strict=False), ('text/xul', None))79        eq(self.db.guess_type('foo.invalid', strict=False), (None, None))80        eq(self.db.guess_extension('image/jpg', strict=False), '.jpg')81        eq(self.db.guess_extension('image/JPG', strict=False), '.jpg')82    def test_filename_with_url_delimiters(self):83        # bpo-38449: URL delimiters cases should be handled also.84        # They would have different mime types if interpreted as URL as85        # compared to when interpreted as filename because of the semicolon.86        eq = self.assertEqual87        gzip_expected = ('application/x-tar', 'gzip')88        eq(self.db.guess_type(";1.tar.gz"), gzip_expected)89        eq(self.db.guess_type("?1.tar.gz"), gzip_expected)90        eq(self.db.guess_type("#1.tar.gz"), gzip_expected)91        eq(self.db.guess_type("#1#.tar.gz"), gzip_expected)92        eq(self.db.guess_type(";1#.tar.gz"), gzip_expected)93        eq(self.db.guess_type(";&1=123;?.tar.gz"), gzip_expected)94        eq(self.db.guess_type("?k1=v1&k2=v2.tar.gz"), gzip_expected)95        eq(self.db.guess_type(r" \"\`;b&b&c |.tar.gz"), gzip_expected)96    def test_guess_all_types(self):97        eq = self.assertEqual98        unless = self.assertTrue99        # First try strict.  Use a set here for testing the results because if100        # test_urllib2 is run before test_mimetypes, global state is modified101        # such that the 'all' set will have more items in it.102        all = set(self.db.guess_all_extensions('text/plain', strict=True))103        unless(all >= set(['.bat', '.c', '.h', '.ksh', '.pl', '.txt']))104        # And now non-strict105        all = self.db.guess_all_extensions('image/jpg', strict=False)106        all.sort()107        eq(all, ['.jpg'])108        # And now for no hits109        all = self.db.guess_all_extensions('image/jpg', strict=True)110        eq(all, [])111    def test_encoding(self):112        getpreferredencoding = locale.getpreferredencoding113        self.addCleanup(setattr, locale, 'getpreferredencoding',114                                 getpreferredencoding)115        locale.getpreferredencoding = lambda: 'ascii'116        filename = support.findfile("mime.types")117        mimes = mimetypes.MimeTypes([filename])118        exts = mimes.guess_all_extensions('application/vnd.geocube+xml',119                                          strict=True)120        self.assertEqual(exts, ['.g3', '.g\xb3'])121    def test_init_reinitializes(self):122        # Issue 4936: make sure an init starts clean123        # First, put some poison into the types table124        mimetypes.add_type('foo/bar', '.foobar')125        self.assertEqual(mimetypes.guess_extension('foo/bar'), '.foobar')126        # Reinitialize127        mimetypes.init()128        # Poison should be gone.129        self.assertEqual(mimetypes.guess_extension('foo/bar'), None)130    def test_preferred_extension(self):131        def check_extensions():132            self.assertEqual(mimetypes.guess_extension('application/octet-stream'), '.bin')133            self.assertEqual(mimetypes.guess_extension('application/postscript'), '.ps')134            self.assertEqual(mimetypes.guess_extension('application/vnd.apple.mpegurl'), '.m3u')135            self.assertEqual(mimetypes.guess_extension('application/vnd.ms-excel'), '.xls')136            self.assertEqual(mimetypes.guess_extension('application/vnd.ms-powerpoint'), '.ppt')137            self.assertEqual(mimetypes.guess_extension('application/x-texinfo'), '.texi')138            self.assertEqual(mimetypes.guess_extension('application/x-troff'), '.roff')139            self.assertEqual(mimetypes.guess_extension('application/xml'), '.xsl')140            self.assertEqual(mimetypes.guess_extension('audio/mpeg'), '.mp3')141            self.assertEqual(mimetypes.guess_extension('image/jpeg'), '.jpg')142            self.assertEqual(mimetypes.guess_extension('image/tiff'), '.tiff')143            self.assertEqual(mimetypes.guess_extension('message/rfc822'), '.eml')144            self.assertEqual(mimetypes.guess_extension('text/html'), '.html')145            self.assertEqual(mimetypes.guess_extension('text/plain'), '.txt')146            self.assertEqual(mimetypes.guess_extension('video/mpeg'), '.mpeg')147            self.assertEqual(mimetypes.guess_extension('video/quicktime'), '.mov')148        check_extensions()149        mimetypes.init()150        check_extensions()151    def test_init_stability(self):152        mimetypes.init()153        suffix_map = mimetypes.suffix_map154        encodings_map = mimetypes.encodings_map155        types_map = mimetypes.types_map156        common_types = mimetypes.common_types157        mimetypes.init()158        self.assertIsNot(suffix_map, mimetypes.suffix_map)159        self.assertIsNot(encodings_map, mimetypes.encodings_map)160        self.assertIsNot(types_map, mimetypes.types_map)161        self.assertIsNot(common_types, mimetypes.common_types)162        self.assertEqual(suffix_map, mimetypes.suffix_map)163        self.assertEqual(encodings_map, mimetypes.encodings_map)164        self.assertEqual(types_map, mimetypes.types_map)165        self.assertEqual(common_types, mimetypes.common_types)166    def test_path_like_ob(self):167        filename = "LICENSE.txt"168        filepath = pathlib.Path(filename)169        filepath_with_abs_dir = pathlib.Path('/dir/'+filename)170        filepath_relative = pathlib.Path('../dir/'+filename)171        path_dir = pathlib.Path('./')172        expected = self.db.guess_type(filename)173        self.assertEqual(self.db.guess_type(filepath), expected)174        self.assertEqual(self.db.guess_type(175            filepath_with_abs_dir), expected)176        self.assertEqual(self.db.guess_type(filepath_relative), expected)177        self.assertEqual(self.db.guess_type(path_dir), (None, None))178    def test_keywords_args_api(self):179        self.assertEqual(self.db.guess_type(180            url="foo.html", strict=True), ("text/html", None))181        self.assertEqual(self.db.guess_all_extensions(182            type='image/jpg', strict=True), [])183        self.assertEqual(self.db.guess_extension(184            type='image/jpg', strict=False), '.jpg')185@unittest.skipUnless(sys.platform.startswith("win"), "Windows only")186class Win32MimeTypesTestCase(unittest.TestCase):187    def setUp(self):188        # ensure all entries actually come from the Windows registry189        self.original_types_map = mimetypes.types_map.copy()190        mimetypes.types_map.clear()191        mimetypes.init()192        self.db = mimetypes.MimeTypes()193    def tearDown(self):194        # restore default settings195        mimetypes.types_map.clear()196        mimetypes.types_map.update(self.original_types_map)197    @unittest.skipIf(win32_edition() in ('NanoServer', 'WindowsCoreHeadless', 'IoTEdgeOS'),198                                         "MIME types registry keys unavailable")199    def test_registry_parsing(self):200        # the original, minimum contents of the MIME database in the201        # Windows registry is undocumented AFAIK.202        # Use file types that should *always* exist:203        eq = self.assertEqual204        eq(self.db.guess_type("foo.txt"), ("text/plain", None))205        eq(self.db.guess_type("image.jpg"), ("image/jpeg", None))206        eq(self.db.guess_type("image.png"), ("image/png", None))207    @unittest.skipIf(not hasattr(_winapi, "_mimetypes_read_windows_registry"),208                     "read_windows_registry accelerator unavailable")209    def test_registry_accelerator(self):210        from_accel = {}211        from_reg = {}212        _winapi._mimetypes_read_windows_registry(213            lambda v, k: from_accel.setdefault(k, set()).add(v)214        )215        mimetypes.MimeTypes._read_windows_registry(216            lambda v, k: from_reg.setdefault(k, set()).add(v)217        )218        self.assertEqual(list(from_reg), list(from_accel))219        for k in from_reg:220            self.assertEqual(from_reg[k], from_accel[k])221class MiscTestCase(unittest.TestCase):222    def test__all__(self):223        support.check__all__(self, mimetypes)224class MimetypesCliTestCase(unittest.TestCase):225    def mimetypes_cmd(self, *args, **kwargs):226        support.patch(self, sys, "argv", [sys.executable, *args])227        with support.captured_stdout() as output:228            mimetypes._main()229            return output.getvalue().strip()230    def test_help_option(self):231        support.patch(self, sys, "argv", [sys.executable, "-h"])232        with support.captured_stdout() as output:233            with self.assertRaises(SystemExit) as cm:234                mimetypes._main()235        self.assertIn("Usage: mimetypes.py", output.getvalue())236        self.assertEqual(cm.exception.code, 0)237    def test_invalid_option(self):238        support.patch(self, sys, "argv", [sys.executable, "--invalid"])239        with support.captured_stdout() as output:240            with self.assertRaises(SystemExit) as cm:241                mimetypes._main()242        self.assertIn("Usage: mimetypes.py", output.getvalue())243        self.assertEqual(cm.exception.code, 1)244    def test_guess_extension(self):245        eq = self.assertEqual246        extension = self.mimetypes_cmd("-l", "-e", "image/jpg")247        eq(extension, ".jpg")248        extension = self.mimetypes_cmd("-e", "image/jpg")249        eq(extension, "I don't know anything about type image/jpg")250        extension = self.mimetypes_cmd("-e", "image/jpeg")251        eq(extension, ".jpg")252    def test_guess_type(self):253        eq = self.assertEqual254        type_info = self.mimetypes_cmd("-l", "foo.pic")255        eq(type_info, "type: image/pict encoding: None")256        type_info = self.mimetypes_cmd("foo.pic")257        eq(type_info, "I don't know anything about type foo.pic")258if __name__ == "__main__":...
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