Add Attachment.content_type

tests/test_utils.py

@@ -4,6 +4,7 @@ import base64
 import copy
 import pickle
 from email.mime.image import MIMEImage
+from email.mime.text import MIMEText
 
 from django.http import QueryDict
 from django.test import SimpleTestCase, RequestFactory, override_settings
@@ -217,6 +218,11 @@ class NormalizedAttachmentTests(SimpleTestCase):
         self.assertFalse(att.inline)
         self.assertIsNone(att.content_id)  # ignored for non-inline Attachment
 
+    def test_content_type(self):
+        att = Attachment(MIMEText("text", "plain", "iso8859-1"), "ascii")
+        self.assertEqual(att.mimetype, "text/plain")
+        self.assertEqual(att.content_type, 'text/plain; charset="iso8859-1"')
+
 
 class LazyCoercionTests(SimpleTestCase):
     """Test utils.is_lazy and force_non_lazy*"""