import io import locale import mimetypes import pathlib import sys import unittest from test import support from platform import win32_edition # Tell it we don't know about external files: mimetypes.knownfiles = [] mimetypes.inited = False mimetypes._default_mime_types() class MimeTypesTestCase(unittest.TestCase): def setUp(self): self.db = mimetypes.MimeTypes() def test_default_data(self): eq = self.assertEqual eq(self.db.guess_type("foo.html"), ("text/html", None)) eq(self.db.guess_type("foo.tgz"), ("application/x-tar", "gzip")) eq(self.db.guess_type("foo.tar.gz"), ("application/x-tar", "gzip")) eq(self.db.guess_type("foo.tar.Z"), ("application/x-tar", "compress")) eq(self.db.guess_type("foo.tar.bz2"), ("application/x-tar", "bzip2")) eq(self.db.guess_type("foo.tar.xz"), ("application/x-tar", "xz")) def test_data_urls(self): eq = self.assertEqual guess_type = self.db.guess_type eq(guess_type("data:,thisIsTextPlain"), ("text/plain", None)) eq(guess_type("data:;base64,thisIsTextPlain"), ("text/plain", None)) eq(guess_type("data:text/x-foo,thisIsTextXFoo"), ("text/x-foo", None)) def test_file_parsing(self): eq = self.assertEqual sio = io.StringIO("x-application/x-unittest pyunit\n") self.db.readfp(sio) eq(self.db.guess_type("foo.pyunit"), ("x-application/x-unittest", None)) eq(self.db.guess_extension("x-application/x-unittest"), ".pyunit") def test_non_standard_types(self): eq = self.assertEqual # First try strict eq(self.db.guess_type('foo.xul', strict=True), (None, None)) eq(self.db.guess_extension('image/jpg', strict=True), None) # And then non-strict eq(self.db.guess_type('foo.xul', strict=False), ('text/xul', None)) eq(self.db.guess_extension('image/jpg', strict=False), '.jpg') def test_guess_all_types(self): eq = self.assertEqual unless = self.assertTrue # First try strict. Use a set here for testing the results because if # test_urllib2 is run before test_mimetypes, global state is modified # such that the 'all' set will have more items in it. all = set(self.db.guess_all_extensions('text/plain', strict=True)) unless(all >= set(['.bat', '.c', '.h', '.ksh', '.pl', '.txt'])) # And now non-strict all = self.db.guess_all_extensions('image/jpg', strict=False) all.sort() eq(all, ['.jpg']) # And now for no hits all = self.db.guess_all_extensions('image/jpg', strict=True) eq(all, []) def test_encoding(self): getpreferredencoding = locale.getpreferredencoding self.addCleanup(setattr, locale, 'getpreferredencoding', getpreferredencoding) locale.getpreferredencoding = lambda: 'ascii' filename = support.findfile("mime.types") mimes = mimetypes.MimeTypes([filename]) exts = mimes.guess_all_extensions('application/vnd.geocube+xml', strict=True) self.assertEqual(exts, ['.g3', '.g\xb3']) def test_init_reinitializes(self): # Issue 4936: make sure an init starts clean # First, put some poison into the types table mimetypes.add_type('foo/bar', '.foobar') self.assertEqual(mimetypes.guess_extension('foo/bar'), '.foobar') # Reinitialize mimetypes.init() # Poison should be gone. self.assertEqual(mimetypes.guess_extension('foo/bar'), None) def test_preferred_extension(self): def check_extensions(): self.assertEqual(mimetypes.guess_extension('application/octet-stream'), '.bin') self.assertEqual(mimetypes.guess_extension('application/postscript'), '.ps') self.assertEqual(mimetypes.guess_extension('application/vnd.apple.mpegurl'), '.m3u') self.assertEqual(mimetypes.guess_extension('application/vnd.ms-excel'), '.xls') self.assertEqual(mimetypes.guess_extension('application/vnd.ms-powerpoint'), '.ppt') self.assertEqual(mimetypes.guess_extension('application/x-texinfo'), '.texi') self.assertEqual(mimetypes.guess_extension('application/x-troff'), '.roff') self.assertEqual(mimetypes.guess_extension('application/xml'), '.xsl') self.assertEqual(mimetypes.guess_extension('audio/mpeg'), '.mp3') self.assertEqual(mimetypes.guess_extension('image/jpeg'), '.jpg') self.assertEqual(mimetypes.guess_extension('image/tiff'), '.tiff') self.assertEqual(mimetypes.guess_extension('message/rfc822'), '.eml') self.assertEqual(mimetypes.guess_extension('text/html'), '.html') self.assertEqual(mimetypes.guess_extension('text/plain'), '.txt') self.assertEqual(mimetypes.guess_extension('video/mpeg'), '.mpeg') self.assertEqual(mimetypes.guess_extension('video/quicktime'), '.mov') check_extensions() mimetypes.init() check_extensions() def test_init_stability(self): mimetypes.init() suffix_map = mimetypes.suffix_map encodings_map = mimetypes.encodings_map types_map = mimetypes.types_map common_types = mimetypes.common_types mimetypes.init() self.assertIsNot(suffix_map, mimetypes.suffix_map) self.assertIsNot(encodings_map, mimetypes.encodings_map) self.assertIsNot(types_map, mimetypes.types_map) self.assertIsNot(common_types, mimetypes.common_types) self.assertEqual(suffix_map, mimetypes.suffix_map) self.assertEqual(encodings_map, mimetypes.encodings_map) self.assertEqual(types_map, mimetypes.types_map) self.assertEqual(common_types, mimetypes.common_types) def test_path_like_ob(self): filename = "LICENSE.txt" filepath = pathlib.Path(filename) filepath_with_abs_dir = pathlib.Path('/dir/'+filename) filepath_relative = pathlib.Path('../dir/'+filename) path_dir = pathlib.Path('./') expected = self.db.guess_type(filename) self.assertEqual(self.db.guess_type(filepath), expected) self.assertEqual(self.db.guess_type( filepath_with_abs_dir), expected) self.assertEqual(self.db.guess_type(filepath_relative), expected) self.assertEqual(self.db.guess_type(path_dir), (None, None)) def test_keywords_args_api(self): self.assertEqual(self.db.guess_type( url="foo.html", strict=True), ("text/html", None)) self.assertEqual(self.db.guess_all_extensions( type='image/jpg', strict=True), []) self.assertEqual(self.db.guess_extension( type='image/jpg', strict=False), '.jpg') @unittest.skipUnless(sys.platform.startswith("win"), "Windows only") class Win32MimeTypesTestCase(unittest.TestCase): def setUp(self): # ensure all entries actually come from the Windows registry self.original_types_map = mimetypes.types_map.copy() mimetypes.types_map.clear() mimetypes.init() self.db = mimetypes.MimeTypes() def tearDown(self): # restore default settings mimetypes.types_map.clear() mimetypes.types_map.update(self.original_types_map) @unittest.skipIf(win32_edition() in ('NanoServer', 'WindowsCoreHeadless', 'IoTEdgeOS'), "MIME types registry keys unavailable") def test_registry_parsing(self): # the original, minimum contents of the MIME database in the # Windows registry is undocumented AFAIK. # Use file types that should *always* exist: eq = self.assertEqual eq(self.db.guess_type("foo.txt"), ("text/plain", None)) eq(self.db.guess_type("image.jpg"), ("image/jpeg", None)) eq(self.db.guess_type("image.png"), ("image/png", None)) class MiscTestCase(unittest.TestCase): def test__all__(self): support.check__all__(self, mimetypes) if __name__ == "__main__": unittest.main()