[KYUUBI #648] [FOLLOWUP #647] Fix flaky test

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### _Why are the changes needed?_
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### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible

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Closes #648 from pan3793/followup.

Closes #648

28cd6da [Cheng Pan] [FOLLOWUP #647] Fix flaky test

Authored-by: Cheng Pan <379377944@qq.com>
Signed-off-by: ulysses-you <ulyssesyou18@gmail.com>

kyuubi-main/src/test/scala/org/apache/kyuubi/operation/KyuubiOperationPerConnectionSuite.scala

@@ -18,6 +18,7 @@
 package org.apache.kyuubi.operation
 
 import org.apache.hive.service.rpc.thrift.{TExecuteStatementReq, TGetOperationStatusReq, TOperationState, TStatusCode}
+import org.scalatest.time.SpanSugar.convertIntToGrainOfTime
 
 import org.apache.kyuubi.WithKyuubiServer
 import org.apache.kyuubi.config.KyuubiConf
@@ -41,10 +42,12 @@ class KyuubiOperationPerConnectionSuite extends WithKyuubiServer with BasicJDBCT
       executeStmtReq.setRunAsync(true)
       val executeStmtResp = client.ExecuteStatement(executeStmtReq)
 
-      val getOpStatusReq = new TGetOperationStatusReq(executeStmtResp.getOperationHandle)
-      val getOpStatusResp = client.GetOperationStatus(getOpStatusReq)
-      assert(getOpStatusResp.getStatus.getStatusCode === TStatusCode.SUCCESS_STATUS)
-      assert(getOpStatusResp.getOperationState === TOperationState.ERROR_STATE)
+      eventually(timeout(10.seconds), interval(500.milliseconds)) {
+        val getOpStatusReq = new TGetOperationStatusReq(executeStmtResp.getOperationHandle)
+        val getOpStatusResp = client.GetOperationStatus(getOpStatusReq)
+        assert(getOpStatusResp.getStatus.getStatusCode === TStatusCode.SUCCESS_STATUS)
+        assert(getOpStatusResp.getOperationState === TOperationState.ERROR_STATE)
+      }
     }
   }
 }