HHH-16094 Add test for issue

hibernate-core/src/test/java/org/hibernate/orm/test/schemaupdate/MySQLLobSchemaValidationTest.java

@@ -0,0 +1,97 @@
+package org.hibernate.orm.test.schemaupdate;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+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.dialect.MySQLDialect;
+import org.hibernate.engine.jdbc.connections.spi.ConnectionProvider;
+import org.hibernate.tool.hbm2ddl.SchemaExport;
+import org.hibernate.tool.hbm2ddl.SchemaValidator;
+import org.hibernate.tool.schema.TargetType;
+
+import org.hibernate.testing.orm.junit.BaseUnitTest;
+import org.hibernate.testing.orm.junit.Jira;
+import org.hibernate.testing.orm.junit.RequiresDialect;
+import org.hibernate.testing.util.ServiceRegistryUtil;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Lob;
+import jakarta.persistence.Table;
+
+@Jira("HHH-16094")
+@BaseUnitTest
+@RequiresDialect(MySQLDialect.class)
+public class MySQLLobSchemaValidationTest {
+	private StandardServiceRegistry ssr;
+	private MetadataImplementor metadata;
+
+	@BeforeEach
+	public void setUp() throws Exception {
+		ssr = ServiceRegistryUtil.serviceRegistry();
+		ConnectionProvider connectionProvider = ssr.getService( ConnectionProvider.class );
+		try (Connection connection = connectionProvider.getConnection();) {
+			PreparedStatement statement = connection.prepareStatement(
+					"create table TestEntity (id integer not null, lobField longtext, primary key (id))" );
+			try {
+				statement.executeUpdate();
+			}
+			finally {
+				statement.close();
+			}
+		}
+
+	}
+
+	@AfterEach
+	public void tearsDown() {
+		dropSchema( TestEntity.class );
+		StandardServiceRegistryBuilder.destroy( ssr );
+	}
+
+	@Test
+	public void testSchemaValidation() {
+		final MetadataSources metadataSources = new MetadataSources( ssr );
+
+		metadataSources.addAnnotatedClass( TestEntity.class );
+		metadata = (MetadataImplementor) metadataSources.buildMetadata();
+		metadata.orderColumns( false );
+		metadata.validate();
+		new SchemaValidator().validate( metadata );
+	}
+
+	private void dropSchema(Class... annotatedClasses) {
+		final MetadataSources metadataSources = new MetadataSources( ssr );
+
+		for ( Class c : annotatedClasses ) {
+			metadataSources.addAnnotatedClass( c );
+		}
+		metadata = (MetadataImplementor) metadataSources.buildMetadata();
+		metadata.orderColumns( false );
+		metadata.validate();
+		new SchemaExport()
+				.setHaltOnError( false )
+				.setFormat( false )
+				.drop( EnumSet.of( TargetType.DATABASE ), metadata );
+	}
+
+	@Entity
+	@Table(name = "TestEntity")
+	public static class TestEntity {
+
+		@Id
+		private int id;
+
+		@Lob
+		private String lobField;
+
+	}
+}