improve test

Author: jan-elastic

x-pack/plugin/esql/compute/src/test/java/org/elasticsearch/compute/operator/ChangePointOperatorTests.java

@@ -66,6 +66,7 @@ protected void assertSimpleOutput(List<Page> input, List<Page> results) {
                 }
             }
         }
+        assertThat(seenOne, equalTo(true));
     }
 
     @Override

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/parser/LogicalPlanBuilder.java

@@ -481,7 +481,6 @@ public PlanFactory visitChangePointCommand(EsqlBaseParser.ChangePointCommandCont
             );
             ChangePoint changePoint = new ChangePoint(src, limit, value, key, targetType, targetPvalue);
             return new Limit(src, new Literal(Source.EMPTY, ChangePointOperator.INPUT_VALUE_COUNT_LIMIT, DataType.INTEGER), changePoint);
-
         };
     }