Fixed #26644 -- Allowed wrapping NamedTemporaryFile with File.

914c72be2abb1c6dd860cb9279beaa66409ae1b2 introduced a regression that
causes saving a NamedTemporaryFile in a FileField to raise a
SuspiciousFileOperation. To remedy this, if a File has an absolute
path as a filename, use only the basename as the filename.

1 files changed, 6 insertions, 0 deletions

diff --git a/tests/files/tests.py b/tests/files/tests.py
index d22020cb8c..12207fee99 100644
--- a/tests/files/tests.py
+++ b/tests/files/tests.py
@@ -26,6 +26,12 @@ else:
 
 
 class FileTests(unittest.TestCase):
+
+    def test_file_truncates_namedtemporaryfile_name(self):
+        named_file = NamedTemporaryFile()
+        f = File(named_file)
+        self.assertEqual(f.name, os.path.basename(named_file.name))
+
     def test_unicode_uploadedfile_name(self):
         uf = UploadedFile(name='¿Cómo?', content_type='text')
         self.assertIs(type(repr(uf)), str)