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EqualTest.java
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EqualTest.java
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package com.github.wenhao.jpa.integration;
import com.github.wenhao.jpa.Specifications;
import com.github.wenhao.jpa.builder.PersonBuilder;
import com.github.wenhao.jpa.model.Person;
import com.github.wenhao.jpa.repository.PersonRepository;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
import org.springframework.data.jpa.domain.Specification;
import org.springframework.test.context.junit4.SpringRunner;
import java.util.List;
import java.util.Optional;
import static org.apache.commons.lang3.StringUtils.EMPTY;
import static org.apache.commons.lang3.StringUtils.isNotBlank;
import static org.assertj.core.api.Assertions.assertThat;
@RunWith(SpringRunner.class)
@DataJpaTest
public class EqualTest {
@Autowired
private PersonRepository personRepository;
@Test
public void should_be_able_to_find_by_using_equal() {
// given
Person person = new PersonBuilder()
.name("Jack")
.age(18)
.build();
personRepository.save(person);
// when
Specification<Person> specification = Specifications.<Person>and()
.eq(isNotBlank(person.getName()), "name", person.getName())
.build();
Optional<Person> result = personRepository.findOne(specification);
// then
assertThat(result.get().getName()).isEqualTo(person.getName());
}
@Test
public void should_be_able_to_find_by_using_equal_for_single_null_value() {
// given
Person jack = new PersonBuilder()
.name("Jack")
.age(18)
.company("Abc")
.build();
Person eric = new PersonBuilder()
.name("Eric")
.age(20)
.build();
personRepository.save(jack);
personRepository.save(eric);
// when
Specification<Person> specification = Specifications.<Person>and()
.eq("company", (Object) null)
.eq("nickName", null)
.build();
List<Person> persons = personRepository.findAll(specification);
// then
assertThat(persons.size()).isEqualTo(1);
}
@Test
public void should_be_able_to_find_by_using_equal_with_multiple_values() {
// given
Person jack = new PersonBuilder()
.name("Jack")
.age(18)
.build();
Person eric = new PersonBuilder()
.name("Eric")
.age(20)
.build();
Person jackson = new PersonBuilder()
.age(30)
.nickName("Jackson")
.build();
personRepository.save(jack);
personRepository.save(eric);
personRepository.save(jackson);
// when
Specification<Person> specification = Specifications.<Person>and()
.eq(isNotBlank(jack.getName()), "name", jack.getName(), eric.getName(), null)
.build();
List<Person> persons = personRepository.findAll(specification);
// then
assertThat(persons.size()).isEqualTo(3);
}
@Test
public void should_be_able_to_find_all_if_all_predicate_are_null() {
// given
Person jack = new PersonBuilder()
.name("Jack")
.age(18)
.build();
Person eric = new PersonBuilder()
.name("Eric")
.age(20)
.build();
personRepository.save(jack);
personRepository.save(eric);
// when
Specification<Person> specification = Specifications.<Person>and()
.eq(isNotBlank(EMPTY), "name", jack.getName())
.like(isNotBlank(EMPTY), "name", "%" + jack.getName() + "%")
.build();
List<Person> persons = personRepository.findAll(specification);
// then
assertThat(persons.size()).isEqualTo(2);
}
}