HHH-10373 - Add test for issue

(cherry picked from commit a9e4eb4895)

hibernate-core/src/test/java/org/hibernate/test/schemaupdate/idbag/IdBagOwner.java

@@ -0,0 +1,38 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.test.schemaupdate.idbag;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author Andrea Boriero
+ */
+public class IdBagOwner {
+	private long id;
+	private List<IdBagOwner> children = new ArrayList<IdBagOwner>();
+
+	public long getId() {
+		return id;
+	}
+
+	public void setId(long id) {
+		this.id = id;
+	}
+
+	public List<IdBagOwner> getChildren() {
+		return children;
+	}
+
+	public void setChildren(List<IdBagOwner> children) {
+		this.children = children;
+	}
+
+	public void addChild(IdBagOwner child){
+		children.add( child );
+	}
+}

hibernate-core/src/test/java/org/hibernate/test/schemaupdate/idbag/IdBagSequenceTest.java

@@ -0,0 +1,63 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.test.schemaupdate.idbag;
+
+import java.io.File;
+import java.nio.file.Files;
+import java.util.EnumSet;
+
+import org.hibernate.boot.MetadataSources;
+import org.hibernate.boot.registry.StandardServiceRegistry;
+import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
+import org.hibernate.boot.spi.MetadataImplementor;
+import org.hibernate.cfg.Environment;
+import org.hibernate.tool.hbm2ddl.SchemaUpdate;
+import org.hibernate.tool.schema.TargetType;
+
+import org.junit.Test;
+
+import org.hibernate.testing.TestForIssue;
+
+import static org.hamcrest.core.Is.is;
+import static org.junit.Assert.assertThat;
+
+/**
+ * @author Andrea Boriero
+ */
+@TestForIssue(jiraKey = "HHH-10373")
+public class IdBagSequenceTest {
+
+	@Test
+	public void testIdBagSequenceGeneratorIsCreated() throws Exception {
+		StandardServiceRegistry ssr = new StandardServiceRegistryBuilder()
+				.applySetting( Environment.HBM2DDL_AUTO, "none" )
+				.build();
+		try {
+			File output = File.createTempFile( "update_script", ".sql" );
+			output.deleteOnExit();
+
+			final MetadataImplementor metadata = (MetadataImplementor) new MetadataSources( ssr )
+					.addResource( "org/hibernate/test/schemaupdate/idbag/Mappings.hbm.xml" )
+					.buildMetadata();
+			metadata.validate();
+
+			new SchemaUpdate()
+					.setHaltOnError( true )
+					.setOutputFile( output.getAbsolutePath() )
+					.setDelimiter( ";" )
+					.setFormat( true )
+					.execute( EnumSet.of( TargetType.SCRIPT ), metadata );
+
+			String fileContent = new String( Files.readAllBytes( output.toPath() ) );
+			assertThat( fileContent.toLowerCase().contains( "create sequence seq_child_id" ), is( true ) );
+		}
+		finally {
+			StandardServiceRegistryBuilder.destroy( ssr );
+		}
+	}
+
+}

hibernate-core/src/test/java/org/hibernate/test/schemaupdate/idbag/Mappings.hbm.xml

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+<?xml version="1.0"?>
+<!--
+  ~ Hibernate, Relational Persistence for Idiomatic Java
+  ~
+  ~ License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+  ~ See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+  -->
+<!DOCTYPE hibernate-mapping PUBLIC
+        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
+        "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
+
+<hibernate-mapping package="org.hibernate.test.schemaupdate.idbag">
+
+    <class name="org.hibernate.test.schemaupdate.idbag.IdBagOwner">
+        <id name="id" column="id">
+            <generator class="sequence">
+                <param name="sequence_name">seq_owner_id</param>
+            </generator>
+        </id>
+
+        <idbag name="children" cascade="all" table="idbag_owner_children">
+            <collection-id type="long" column="id">
+                <generator class="sequence">
+                    <param name="sequence_name">seq_child_id</param>
+                </generator>
+            </collection-id>
+            <key column="PARENT_FK"/>
+            <many-to-many column="CHILD_FK" class="org.hibernate.test.schemaupdate.idbag.IdBagOwner"/>
+        </idbag>
+    </class>
+
+</hibernate-mapping>