.

lib/tests/test_zodb.py

@@ -269,13 +269,25 @@ def test_zconn_at():
     assert zconn_at(conn2) == at1
     conn2.close()
 
+    # commit empty transaction - view stays in sync with storage head
+    #
+    # TODO zconn_at after empty commit (with fs1 currently gives future tid,
+    # but db is not updated and wcfs client resync to that future tid hangs)
+    conn3 = db.open()
+    assert conn3 is conn2   # from DB pool
+    assert zconn_at(conn3) == at1
+    transaction.commit()
+
+    zsync(stor)
+    at1_ = stor.lastTransaction()
+    assert zconn_at(conn3) == at1_
+
+    conn3.close()
+
 
     # TODO commit -> know head -> open conn1,
     #      open conn2, commit there; wait or sync, make sure zconn_at(conn1) is as expected
 
     # TODO zconn_at for historic connection
 
-    # TODO zconn_at after empty commit (with fs1 currently gives future tid,
-    # but db is not updated and wcfs client resync to that future tid hangs)
-
     pass