DBZ-7758 Make sure if connector fails, test fails

debezium-connector-oracle/src/test/java/io/debezium/connector/oracle/OracleConnectorIT.java

@@ -5543,6 +5543,9 @@ public void shouldPauseAndWaitForDeviationCalculationIfBeforeMiningRange() throw
                 // ignored
             }
 
+            // Assert connector did not fail
+            assertConnectorIsRunning();
+
             // Just concerned that every iteration has lag greater than deviation.
             stopConnector();
         }