1 import mimetypes 2 import StringIO 3 import unittest 4 import sys 5 6 from test import test_support 7 8 # Tell it we don't know about external files: 9 mimetypes.knownfiles = [] 10 mimetypes.inited = False 11 mimetypes._default_mime_types() 12 13 14 class MimeTypesTestCase(unittest.TestCase): 15 def setUp(self): 16 self.db = mimetypes.MimeTypes() 17 18 def test_default_data(self): 19 eq = self.assertEqual 20 eq(self.db.guess_type("foo.html"), ("text/html", None)) 21 eq(self.db.guess_type("foo.tgz"), ("application/x-tar", "gzip")) 22 eq(self.db.guess_type("foo.tar.gz"), ("application/x-tar", "gzip")) 23 eq(self.db.guess_type("foo.tar.Z"), ("application/x-tar", "compress")) 24 eq(self.db.guess_type("foo.tar.bz2"), ("application/x-tar", "bzip2")) 25 eq(self.db.guess_type("foo.tar.xz"), ("application/x-tar", "xz")) 26 27 def test_data_urls(self): 28 eq = self.assertEqual 29 guess_type = self.db.guess_type 30 eq(guess_type("data:,thisIsTextPlain"), ("text/plain", None)) 31 eq(guess_type("data:;base64,thisIsTextPlain"), ("text/plain", None)) 32 eq(guess_type("data:text/x-foo,thisIsTextXFoo"), ("text/x-foo", None)) 33 34 def test_file_parsing(self): 35 eq = self.assertEqual 36 sio = StringIO.StringIO("x-application/x-unittest pyunit\n") 37 self.db.readfp(sio) 38 eq(self.db.guess_type("foo.pyunit"), 39 ("x-application/x-unittest", None)) 40 eq(self.db.guess_extension("x-application/x-unittest"), ".pyunit") 41 42 def test_non_standard_types(self): 43 eq = self.assertEqual 44 # First try strict 45 eq(self.db.guess_type('foo.xul', strict=True), (None, None)) 46 eq(self.db.guess_extension('image/jpg', strict=True), None) 47 # And then non-strict 48 eq(self.db.guess_type('foo.xul', strict=False), ('text/xul', None)) 49 eq(self.db.guess_extension('image/jpg', strict=False), '.jpg') 50 51 def test_guess_all_types(self): 52 eq = self.assertEqual 53 unless = self.assertTrue 54 # First try strict. Use a set here for testing the results because if 55 # test_urllib2 is run before test_mimetypes, global state is modified 56 # such that the 'all' set will have more items in it. 57 all = set(self.db.guess_all_extensions('text/plain', strict=True)) 58 unless(all >= set(['.bat', '.c', '.h', '.ksh', '.pl', '.txt'])) 59 # And now non-strict 60 all = self.db.guess_all_extensions('image/jpg', strict=False) 61 all.sort() 62 eq(all, ['.jpg']) 63 # And now for no hits 64 all = self.db.guess_all_extensions('image/jpg', strict=True) 65 eq(all, []) 66 67 68 @unittest.skipUnless(sys.platform.startswith("win"), "Windows only") 69 class Win32MimeTypesTestCase(unittest.TestCase): 70 def setUp(self): 71 # ensure all entries actually come from the Windows registry 72 self.original_types_map = mimetypes.types_map.copy() 73 mimetypes.types_map.clear() 74 mimetypes.init() 75 self.db = mimetypes.MimeTypes() 76 77 def tearDown(self): 78 # restore default settings 79 mimetypes.types_map.clear() 80 mimetypes.types_map.update(self.original_types_map) 81 82 def test_registry_parsing(self): 83 # the original, minimum contents of the MIME database in the 84 # Windows registry is undocumented AFAIK. 85 # Use file types that should *always* exist: 86 eq = self.assertEqual 87 eq(self.db.guess_type("foo.txt"), ("text/plain", None)) 88 89 def test_main(): 90 test_support.run_unittest(MimeTypesTestCase, 91 Win32MimeTypesTestCase 92 ) 93 94 95 if __name__ == "__main__": 96 test_main() 97
