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HHH-15346 Add test for issue

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Andrea Boriero 2022-06-22 17:10:05 +02:00 committed by Andrea Boriero
parent a8318fdfb9
commit a70150fe2e
2 changed files with 325 additions and 0 deletions
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164
hibernate-core/src/test/java/org/hibernate/orm/test/batch/EagerManyToOneBatchTest.java Normal file
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package org.hibernate.orm.test.batch;
import java.util.List;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.testing.TestForIssue;
import org.hibernate.testing.jdbc.SQLStatementInspector;
import org.hibernate.testing.orm.junit.DomainModel;
import org.hibernate.testing.orm.junit.ServiceRegistry;
import org.hibernate.testing.orm.junit.SessionFactory;
import org.hibernate.testing.orm.junit.SessionFactoryScope;
import org.hibernate.testing.orm.junit.Setting;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import jakarta.persistence.Entity;
import jakarta.persistence.Id;
import jakarta.persistence.JoinColumn;
import jakarta.persistence.ManyToOne;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertEquals;
@DomainModel(
annotatedClasses = {
EagerManyToOneBatchTest.Child.class,
EagerManyToOneBatchTest.Parent.class
}
)
@SessionFactory(statementInspectorClass = SQLStatementInspector.class)
@ServiceRegistry(
settings = @Setting(name = AvailableSettings.DEFAULT_BATCH_FETCH_SIZE, value = "2")
)
@TestForIssue(jiraKey = "HHH-15346")
public class EagerManyToOneBatchTest {
@BeforeEach
public void setUp(SessionFactoryScope scope) {
scope.inTransaction(
session -> {
Parent parent = new Parent( 1L, "a" );
session.persist( parent );
Parent parent2 = new Parent( 2L, "b" );
session.persist( parent2 );
Parent parent3 = new Parent( 3L, "c" );
session.persist( parent3 );
Child child1 = new Child( 4L, parent );
session.persist( child1 );
Child child2 = new Child( 5L, parent );
session.persist( child2 );
Child child3 = new Child( 6L, parent2 );
session.persist( child3 );
Child child4 = new Child( 7L, parent3 );
session.persist( child4 );
}
);
}
@Test
public void testSelect(SessionFactoryScope scope) {
SQLStatementInspector statementInspector = (SQLStatementInspector) scope.getStatementInspector();
statementInspector.clear();
scope.inTransaction(
session -> {
List<Child> children = session
.createQuery( "select c from Child as c ", Child.class )
.getResultList();
// Child->parent is an eager manyToOne, so the queries to retrieve this association are executed immediately
// we have 2 more queries executed instead of 3 due to the DEFAULT_BATCH_FETCH_SIZE value
statementInspector.assertExecutedCount( 3 );
assertEquals( 4, children.size() );
Child child1 = children.get( 0 );
assertNotNull( child1.getParent() );
assertThat( child1.getParent().getName(), is( "a" ) );
statementInspector.assertExecutedCount( 3 );
Child child2 = children.get( 1 );
assertNotNull( child2.getParent() );
assertThat( child2.getParent().getName(), is( "a" ) );
statementInspector.assertExecutedCount( 3 );
Child child3 = children.get( 2 );
assertNotNull( child3.getParent() );
assertThat( child3.getParent().getName(), is( "b" ) );
statementInspector.assertExecutedCount( 3 );
Child child4 = children.get( 3 );
assertNotNull( child4.getParent() );
assertThat( child4.getParent().getName(), is( "c" ) );
statementInspector.assertExecutedCount( 3 );
}
);
}
@Entity(name = "Child")
public static class Child {
@Id
private Long id;
private String name;
@ManyToOne(optional = false)
@JoinColumn(name = "parent_id", nullable = false, updatable = false)
private Parent parent;
public Child() {
}
public Child(Long id, Parent parent) {
this.id = id;
this.parent = parent;
}
public Long getId() {
return id;
}
public String getName() {
return name;
}
public Parent getParent() {
return parent;
}
}
@Entity(name = "Parent")
public static class Parent {
@Id
private Long id;
private String name;
public Parent() {
}
public Parent(Long id, String name) {
this.id = id;
this.name = name;
}
public Long getId() {
return id;
}
public String getName() {
return name;
}
}
}

161
hibernate-core/src/test/java/org/hibernate/orm/test/batch/LazyManyToOneBatchTest.java Normal file
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package org.hibernate.orm.test.batch;
import java.util.List;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.testing.TestForIssue;
import org.hibernate.testing.jdbc.SQLStatementInspector;
import org.hibernate.testing.orm.junit.DomainModel;
import org.hibernate.testing.orm.junit.ServiceRegistry;
import org.hibernate.testing.orm.junit.SessionFactory;
import org.hibernate.testing.orm.junit.SessionFactoryScope;
import org.hibernate.testing.orm.junit.Setting;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import jakarta.persistence.Entity;
import jakarta.persistence.FetchType;
import jakarta.persistence.Id;
import jakarta.persistence.JoinColumn;
import jakarta.persistence.ManyToOne;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertEquals;
@DomainModel(
annotatedClasses = {
LazyManyToOneBatchTest.Child.class,
LazyManyToOneBatchTest.Parent.class
}
)
@SessionFactory(statementInspectorClass = SQLStatementInspector.class)
@ServiceRegistry(
settings = @Setting(name = AvailableSettings.DEFAULT_BATCH_FETCH_SIZE, value = "2")
)
@TestForIssue(jiraKey = "HHH-15346")
public class LazyManyToOneBatchTest {
@BeforeEach
public void setUp(SessionFactoryScope scope) {
scope.inTransaction(
session -> {
Parent parent = new Parent( 1L, "a" );
session.persist( parent );
Parent parent2 = new Parent( 2L, "b" );
session.persist( parent2 );
Parent parent3 = new Parent( 3L, "c" );
session.persist( parent3 );
Child child1 = new Child( 4L, parent );
session.persist( child1 );
Child child2 = new Child( 5L, parent );
session.persist( child2 );
Child child3 = new Child( 6L, parent2 );
session.persist( child3 );
Child child4 = new Child( 7L, parent3 );
session.persist( child4 );
}
);
}
@Test
public void testSelect(SessionFactoryScope scope) {
SQLStatementInspector statementInspector = (SQLStatementInspector) scope.getStatementInspector();
statementInspector.clear();
scope.inTransaction(
session -> {
List<Child> children = session
.createQuery( "select c from Child as c ", Child.class )
.getResultList();
statementInspector.assertExecutedCount( 1 );
assertEquals( 4, children.size() );
Child child1 = children.get( 0 );
assertNotNull( child1.getParent() );
assertThat( child1.getParent().getName(), is( "a" ) );
statementInspector.assertExecutedCount( 2 );
Child child2 = children.get( 1 );
assertNotNull( child2.getParent() );
assertThat( child2.getParent().getName(), is( "a" ) );
statementInspector.assertExecutedCount( 2 );
Child child3 = children.get( 2 );
assertNotNull( child3.getParent() );
assertThat( child3.getParent().getName(), is( "b" ) );
statementInspector.assertExecutedCount( 2 );
Child child4 = children.get( 3 );
assertNotNull( child4.getParent() );
assertThat( child4.getParent().getName(), is( "c" ) );
statementInspector.assertExecutedCount( 3 );
}
);
}
@Entity(name = "Child")
public static class Child {
@Id
private Long id;
private String name;
@ManyToOne(optional = false, fetch = FetchType.LAZY)
@JoinColumn(name = "parent_id", nullable = false, updatable = false)
private Parent parent;
public Child() {
}
public Child(Long id, Parent parent) {
this.id = id;
this.parent = parent;
}
public Long getId() {
return id;
}
public String getName() {
return name;
}
public Parent getParent() {
return parent;
}
}
@Entity(name = "Parent")
public static class Parent {
@Id
private Long id;
private String name;
public Parent() {
}
public Parent(Long id, String name) {
this.id = id;
this.name = name;
}
public Long getId() {
return id;
}
public String getName() {
return name;
}
}
}