concurrency: fix STM example to add to balance

Worked by coincidence; the txn would always retry and there was a 1/10 chance it would pass by selecting the same to/from keys.
etcd-io · Aug 23, 2017 · b962863 · b962863
1 parent 8a8f5e3
commit b962863
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/clientv3/concurrency/example_stm_test.go b/clientv3/concurrency/example_stm_test.go
@@ -58,7 +58,7 @@ func ExampleSTM_apply() {
 
 		// transfer amount
 		xfer := fromInt / 2
-		fromInt, toInt = fromInt-xfer, toInt-xfer
+		fromInt, toInt = fromInt-xfer, toInt+xfer
 
 		// writeback
 		stm.Put(fromK, fmt.Sprintf("%d", fromInt))