From 7c7021b086ca07b2c4fa6bb741bc6c6268f8fc2e Mon Sep 17 00:00:00 2001
From: Burkhard Graves <graves@id-on.de>
Date: Mon, 10 Oct 2022 20:20:55 +0200
Subject: [PATCH] HHH-15591: added two tests in
 UnidirectionalOneToManyOrderColumnTest

---
 ...nidirectionalOneToManyOrderColumnTest.java | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/jpa/mapping/UnidirectionalOneToManyOrderColumnTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/jpa/mapping/UnidirectionalOneToManyOrderColumnTest.java
index 986c8f3969..82d92af44b 100644
--- a/hibernate-core/src/test/java/org/hibernate/orm/test/jpa/mapping/UnidirectionalOneToManyOrderColumnTest.java
+++ b/hibernate-core/src/test/java/org/hibernate/orm/test/jpa/mapping/UnidirectionalOneToManyOrderColumnTest.java
@@ -182,6 +182,59 @@ public class UnidirectionalOneToManyOrderColumnTest {
 		);
 	}
 
+	@Test
+	public void testSwapElementsAtZeroAndOne(EntityManagerFactoryScope scope) {
+		long parentId = scope.fromTransaction(
+				entityManager -> {
+					ParentData parent = new ParentData();
+					entityManager.persist( parent );
+
+					String[] childrenStr = new String[] {"One", "Two"};
+					for ( String str : childrenStr ) {
+						ChildData child = new ChildData( str );
+						entityManager.persist( child );
+						parent.getChildren().add( child );
+					}
+
+					entityManager.flush();
+
+					List<ChildData> children = parent.getChildren();
+					ChildData child0 = children.get( 0 );
+					ChildData child1 = children.get( 1 );
+					children.set(0, child1);
+					children.set(1, child0);
+					
+					return parent.id;
+				}
+		);
+		// if the above works, then test on {"Two", "One"}
+	}
+
+	@Test
+	public void testAddAtZeroDeleteAtTwo(EntityManagerFactoryScope scope) {
+		long parentId = scope.fromTransaction(
+				entityManager -> {
+					ParentData parent = new ParentData();
+					entityManager.persist( parent );
+
+					String[] childrenStr = new String[] {"One", "Two"};
+					for ( String str : childrenStr ) {
+						ChildData child = new ChildData( str );
+						entityManager.persist( child );
+						parent.getChildren().add( child );
+					}
+
+					entityManager.flush();
+
+					List<ChildData> children = parent.getChildren();
+					children.add( 0, new ChildData( "Zero" ) );
+					children.remove( 2 );
+					return parent.id;
+				}
+		);
+		// if the above works, then test on {"Zero", "One"}
+	}
+
 	@Entity(name = "ParentData")
 	@Table(name = "PARENT")
 	public static class ParentData {