bpo-34926: Make mimetypes.guess_type accept os.PathLike objects (GH-9777)

:meth:`mimetypes.MimeTypes.guess_type` now accepts :term:`path-like object` in addition to url strings.

1 files changed, 24 insertions, 0 deletions

diff --git a/Lib/test/test_mimetypes.py b/Lib/test/test_mimetypes.py
index 4e2c908..554d3d5 100644
--- a/Lib/test/test_mimetypes.py
+++ b/Lib/test/test_mimetypes.py
@@ -1,6 +1,7 @@
 import io
 import locale
 import mimetypes
+import pathlib
 import sys
 import unittest
 
@@ -77,6 +78,29 @@ class MimeTypesTestCase(unittest.TestCase):
                                           strict=True)
         self.assertEqual(exts, ['.g3', '.g\xb3'])
 
+    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):