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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()
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