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diff --git a/src/third_party/wiredtiger/test/suite/test_prepare18.py b/src/third_party/wiredtiger/test/suite/test_prepare18.py
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+++ b/src/third_party/wiredtiger/test/suite/test_prepare18.py
@@ -0,0 +1,52 @@
+#!/usr/bin/env python
+#
+# Public Domain 2014-present MongoDB, Inc.
+# Public Domain 2008-2014 WiredTiger, Inc.
+#
+# This is free and unencumbered software released into the public domain.
+#
+# Anyone is free to copy, modify, publish, use, compile, sell, or
+# distribute this software, either in source code form or as a compiled
+# binary, for any purpose, commercial or non-commercial, and by any
+# means.
+#
+# In jurisdictions that recognize copyright laws, the author or authors
+# of this software dedicate any and all copyright interest in the
+# software to the public domain. We make this dedication for the benefit
+# of the public at large and to the detriment of our heirs and
+# successors. We intend this dedication to be an overt act of
+# relinquishment in perpetuity of all present and future rights to this
+# software under copyright law.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+
+import wiredtiger, wttest
+from wtdataset import SimpleDataSet
+
+# test_prepare18.py
+#    Test that prepare on a logged file returns an error.
+class test_prepare18(wttest.WiredTigerTestCase):
+    conn_config = 'log=(enabled)'
+
+    def test_prepare18(self):
+        uri = "table:prepare18"
+        ds = SimpleDataSet(self, uri, 100, key_format='S', value_format='S')
+        ds.populate()
+        cursor = self.session.open_cursor(uri, None)
+        self.session.begin_transaction()
+        cursor[ds.key(10)] = ds.value(20)
+        self.session.commit_transaction()
+        self.session.begin_transaction()
+        cursor[ds.key(10)] = ds.value(20)
+        msg='/a prepared transaction cannot include a logged table/'
+        self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
+            lambda:self.session.prepare_transaction('prepare_timestamp=1'), msg)
+
+if __name__ == '__main__':
+    wttest.run()