Allow taking __repr__ (__str__) of closed xmlfile and sqlite (RhBug:1913465)

After closing, the object should still be available to be read,
as is standard for other python modules.

https://bugzilla.redhat.com/show_bug.cgi?id=1913465

Also adds a simple unit test testing.

2 files changed, 2 insertions, 0 deletions

diff --git a/tests/python/tests/test_sqlite.py b/tests/python/tests/test_sqlite.py
index 045b0fc..5247a3c 100644
--- a/tests/python/tests/test_sqlite.py
+++ b/tests/python/tests/test_sqlite.py
@@ -56,6 +56,7 @@ class TestCaseSqlite(unittest.TestCase):
 
         self.assertRaises(cr.CreaterepoCError, db.add_pkg, pkg)
         self.assertRaises(cr.CreaterepoCError, db.dbinfo_update, "somechecksum")
+        self.assertEqual("<createrepo_c.Sqlite Closed object>", db.__str__())
 
         db.close()  # No error should be raised
         del db      # No error should be raised
diff --git a/tests/python/tests/test_xml_file.py b/tests/python/tests/test_xml_file.py
index 0100d1b..8aa6d5c 100644
--- a/tests/python/tests/test_xml_file.py
+++ b/tests/python/tests/test_xml_file.py
@@ -49,6 +49,7 @@ class TestCaseXmlFile(unittest.TestCase):
         self.assertRaises(cr.CreaterepoCError, f.set_num_of_pkgs, 1)
         self.assertRaises(cr.CreaterepoCError, f.add_pkg, pkg)
         self.assertRaises(cr.CreaterepoCError, f.add_chunk, "<chunk>text</chunk>")
+        self.assertEqual("<createrepo_c.XmlFile Closed object>", f.__str__())
         f.close() # No error should be raised
         del(f)    # No error should be raised