Fix [ 251 ] system_message.copy() TypeError. Fix nodes.Element.copy()

Avoid clash with multiple values for keyword argument "rawsource".

Let nodes.Element.copy() also copy "document", "line",
and "source" attributes.

git-svn-id: https://svn.code.sf.net/p/docutils/code/trunk/docutils@8212 929543f6-e4f2-0310-98a6-ba3bd3dd1d04

1 files changed, 3 insertions, 0 deletions

diff --git a/test/test_nodes.py b/test/test_nodes.py
index 557078c77..6541c699e 100755
--- a/test/test_nodes.py
+++ b/test/test_nodes.py
@@ -616,6 +616,9 @@ class MiscTests(unittest.TestCase):
         self.assertEqual(e.rawsource, 'rawsource')
         self.assertEqual(e_copy.rawsource, e.rawsource)
         self.assertEqual(e_copy['att'], 'e')
+        self.assertEqual(e_copy.document, e.document)
+        self.assertEqual(e_copy.source, e.source)
+        self.assertEqual(e_copy.line, e.line)
         # Children are not copied.
         self.assertEqual(len(e_copy), 0)
         # Deep copy: