dawidwys commented on code in PR #24219:
URL: https://github.com/apache/flink/pull/24219#discussion_r1514647722


##########
flink-table/flink-table-planner/src/test/java/org/apache/flink/table/planner/plan/nodes/exec/testutils/RestoreTestBase.java:
##########
@@ -90,16 +90,27 @@
 public abstract class RestoreTestBase implements TableTestProgramRunner {
 
     private final Class<? extends ExecNode<?>> execNodeUnderTest;
+    private final List<Class<? extends ExecNode<?>>> childExecNodesUnderTest;
     private final AfterRestoreSource afterRestoreSource;
 
     protected RestoreTestBase(Class<? extends ExecNode<?>> execNodeUnderTest) {
         this.execNodeUnderTest = execNodeUnderTest;
+        this.childExecNodesUnderTest = new ArrayList<>();
+        this.afterRestoreSource = AfterRestoreSource.FINITE;
+    }
+
+    protected RestoreTestBase(
+            Class<? extends ExecNode<?>> execNodeUnderTest,
+            List<Class<? extends ExecNode<?>>> childExecNodesUnderTest) {
+        this.execNodeUnderTest = execNodeUnderTest;
+        this.childExecNodesUnderTest = childExecNodesUnderTest;
         this.afterRestoreSource = AfterRestoreSource.FINITE;
     }

Review Comment:
   I strongly believe we should always redirect to a single ctor. Otherwise 
it's really hard to track what's initialised where.
   
   I must've missed that when reviewing adding previous ctors.



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