/*
* Copyright 2013-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.jpa.domain;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
import static org.mockito.Mockito.*;
import static org.springframework.data.jpa.domain.Specifications.*;
import static org.springframework.util.SerializationUtils.*;
import java.io.Serializable;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.junit.MockitoJUnitRunner;
/**
* @author Oliver Gierke
* @author Thomas Darimont
*/
@RunWith(MockitoJUnitRunner.class)
public class SpecificationsUnitTests {
Specification<Object> mockSpec;
@Mock(extraInterfaces = Serializable.class) Root<Object> root;
@Mock(extraInterfaces = Serializable.class) CriteriaQuery<?> query;
@Mock(extraInterfaces = Serializable.class) CriteriaBuilder builder;
@Mock(extraInterfaces = Serializable.class) Predicate predicate;
@Before
@SuppressWarnings("unchecked")
public void setUp() {
mockSpec = (Specification<Object>) mock(Specification.class, withSettings().serializable());
when(mockSpec.toPredicate(root, query, builder)).thenReturn(predicate);
}
@Test // DATAJPA-300
public void createsSpecificationsFromNull() {
Specifications<Object> specification = where(null);
assertThat(specification, is(notNullValue()));
assertThat(specification.toPredicate(root, query, builder), is(nullValue()));
}
@Test // DATAJPA-300
public void negatesNullSpecToNull() {
Specifications<Object> specification = not((Specification<Object>) null);
assertThat(specification, is(notNullValue()));
assertThat(specification.toPredicate(root, query, builder), is(nullValue()));
}
@Test // DATAJPA-300
public void andConcatenatesSpecToNullSpec() {
Specifications<Object> specification = where(null);
specification = specification.and(mockSpec);
assertThat(specification, is(notNullValue()));
assertThat(specification.toPredicate(root, query, builder), is(predicate));
}
@Test // DATAJPA-300
public void andConcatenatesNullSpecToSpec() {
Specifications<Object> specification = where(mockSpec);
specification = specification.and(null);
assertThat(specification, is(notNullValue()));
assertThat(specification.toPredicate(root, query, builder), is(predicate));
}
@Test // DATAJPA-300
public void orConcatenatesSpecToNullSpec() {
Specifications<Object> specification = where(null);
specification = specification.or(mockSpec);
assertThat(specification, is(notNullValue()));
assertThat(specification.toPredicate(root, query, builder), is(predicate));
}
@Test // DATAJPA-300
public void orConcatenatesNullSpecToSpec() {
Specifications<Object> specification = where(mockSpec);
specification = specification.or(null);
assertThat(specification, is(notNullValue()));
assertThat(specification.toPredicate(root, query, builder), is(predicate));
}
@Test // DATAJPA-523
public void specificationsShouldBeSerializable() {
Specifications<Object> specification = where(mockSpec);
specification = specification.and(mockSpec);
assertThat(specification, is(notNullValue()));
@SuppressWarnings("unchecked")
Specifications<Object> transferedSpecification = (Specifications<Object>) deserialize(serialize(specification));
assertThat(transferedSpecification, is(notNullValue()));
}
@Test // DATAJPA-523
public void complexSpecificationsShouldBeSerializable() {
Specifications<Object> specification = where(mockSpec);
specification = Specifications.not(specification.and(mockSpec).or(mockSpec));
assertThat(specification, is(notNullValue()));
@SuppressWarnings("unchecked")
Specifications<Object> transferedSpecification = (Specifications<Object>) deserialize(serialize(specification));
assertThat(transferedSpecification, is(notNullValue()));
}
}