diff --git a/engine/src/test/java/org/camunda/bpm/engine/test/history/useroperationlog/UserOperationLogJobTest.java b/engine/src/test/java/org/camunda/bpm/engine/test/history/useroperationlog/UserOperationLogJobTest.java
index <HASH>..<HASH> 100644
--- a/engine/src/test/java/org/camunda/bpm/engine/test/history/useroperationlog/UserOperationLogJobTest.java
+++ b/engine/src/test/java/org/camunda/bpm/engine/test/history/useroperationlog/UserOperationLogJobTest.java
@@ -448,7 +448,7 @@ public class UserOperationLogJobTest extends AbstractUserOperationLogTest {
   public void testExecuteByJobExecutor() {
     // given a job
     runtimeService.startProcessInstanceByKey("asyncTaskProcess");
-    managementService.createJobQuery().singleResult();
+    assertEquals(1L, managementService.createJobQuery().count());
 
     // when a job is executed by the job executor
     waitForJobExecutorToProcessAllJobs(TimeUnit.MILLISECONDS.convert(5L, TimeUnit.SECONDS));
test(engine): improve assertions

related to CAM-<I>