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HHH-16888 Add test for issue
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mbladel committed Aug 1, 2023
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/*
* 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.orm.test.query;

import java.util.List;

import org.hibernate.dialect.TiDBDialect;

import org.hibernate.testing.orm.junit.DomainModel;
import org.hibernate.testing.orm.junit.Jira;
import org.hibernate.testing.orm.junit.SessionFactory;
import org.hibernate.testing.orm.junit.SessionFactoryScope;
import org.hibernate.testing.orm.junit.SkipForDialect;
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;

import jakarta.persistence.Entity;
import jakarta.persistence.FetchType;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.Id;
import jakarta.persistence.ManyToMany;
import jakarta.persistence.Tuple;

import static org.assertj.core.api.Assertions.assertThat;

/**
* @author Marco Belladelli
*/
@SessionFactory
@DomainModel( annotatedClasses = {
CorrelatedListJoinInSubqueryTest.Property.class,
CorrelatedListJoinInSubqueryTest.Entity1.class,
CorrelatedListJoinInSubqueryTest.Entity2.class,
} )
@Jira( "https://hibernate.atlassian.net/browse/HHH-16888" )
@SkipForDialect( dialectClass = TiDBDialect.class, reason = "TiDB doesn't support subqueries in ON conditions yet" )
public class CorrelatedListJoinInSubqueryTest {
@BeforeAll
public void setUp(SessionFactoryScope scope) {
scope.inTransaction( session -> {
final Entity1 entity1 = new Entity1( "key" );
session.persist( entity1 );
final Property property1 = new Property( "admin" );
session.persist( property1 );
final Property property2 = new Property( "name" );
session.persist( property2 );
final Entity2 entity2 = new Entity2( "key", List.of( property1, property2 ) );
session.persist( entity2 );
} );
}

@AfterAll
public void tearDown(SessionFactoryScope scope) {
scope.inTransaction( session -> {
session.createMutationQuery( "delete from Entity1" ).executeUpdate();
session.createQuery( "from Entity2", Entity2.class ).getResultList().forEach( entity2 -> {
entity2.getProperties().forEach( session::remove );
entity2.getProperties().clear();
session.remove( entity2 );
} );
} );
}

@Test
public void testEntityJoin(SessionFactoryScope scope) {
scope.inTransaction( session -> {
final List<Tuple> resultList = session.createQuery(
"select e1, e2 " +
"from Entity1 e1 " +
"join Entity2 e2 on e1.uniqueKey = e2.uniqueKey and exists (" +
"select 1 from e2.properties p where p.name = :propertyName)",
Tuple.class
).setParameter( "propertyName", "admin" ).getResultList();
assertThat( resultList ).hasSize( 1 );
} );
}

@Test
public void testCrossJoin(SessionFactoryScope scope) {
scope.inTransaction( session -> {
final List<Tuple> resultList = session.createQuery(
"select e1, e2 " +
"from Entity1 e1, Entity2 e2 " +
"where e1.uniqueKey = e2.uniqueKey and exists (" +
"select 1 from e2.properties p where p.name = :propertyName)",
Tuple.class
).setParameter( "propertyName", "admin" ).getResultList();
assertThat( resultList ).hasSize( 1 );
} );
}

@Entity( name = "Property" )
public static class Property {
@Id
@GeneratedValue
private Long id;
private String name;

public Property() {
}

public Property(String name) {
this.name = name;
}
}

@Entity( name = "Entity1" )
public static class Entity1 {
@Id
@GeneratedValue
private Long id;
private String uniqueKey;

public Entity1() {
}

public Entity1(String uniqueKey) {
this.uniqueKey = uniqueKey;
}
}

@Entity( name = "Entity2" )
public static class Entity2 {

@Id
@GeneratedValue
private Long id;

private String uniqueKey;

@ManyToMany( fetch = FetchType.LAZY )
private List<Property> properties;

public Entity2() {
}

public Entity2(String uniqueKey, List<Property> properties) {
this.uniqueKey = uniqueKey;
this.properties = properties;
}

public List<Property> getProperties() {
return properties;
}
}
}

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