Test Suite Run Spring Boot Once - spring

Question

I am trying to create a test suite that runs Spring Boot once at the start of the suite. I have it working such that each test case has #SpringBootTest but I'd like to have #SpringBootTest in the test suite only.
I did see this but that didn't mentioned #RunWith Suite.class.

Answer 1

If I understood your question, for you launch many tests with spring boot you can do something like this:
1) First create yours tests classes. Here I have the first test class:
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase.Replace;
import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
import org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager;
import org.springframework.test.context.junit4.SpringRunner;
#RunWith(SpringRunner.class)
#DataJpaTest
#AutoConfigureTestDatabase(replace=Replace.NONE)
public class ExampleRepositoryTests {
#Autowired
private TestEntityManager entityManager;
#Autowired
private CustomerRepository repository;
#Test
public void testExample() throws Exception {
this.entityManager.persist(new Customer("sboot", "1234"));
Customer user = repository.findByFirstName("sboot").get(0);
assertThat(user.getFirstName()).isEqualTo("sboot");
}
}
2) My second test class.
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase.Replace;
import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
import org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager;
import org.springframework.test.context.junit4.SpringRunner;
#RunWith(SpringRunner.class)
#DataJpaTest
#AutoConfigureTestDatabase(replace=Replace.NONE)
public class ExampleRepositoryTests2 {
#Autowired
private TestEntityManager entityManager;
#Autowired
private CustomerRepository repository;
#Test
public void testExample() throws Exception {
this.entityManager.persist(new Customer("sboot", "1234"));
Customer user = repository.findByFirstName("sboot").get(0);
assertThat(user.getFirstName()).isEqualTo("sboot");
}
}
3) Now let's create the suite test class:
import org.junit.runner.RunWith;
import org.junit.runners.Suite;
#RunWith(Suite.class)
#Suite.SuiteClasses({
ExampleRepositoryTests.class, //test case 1
ExampleRepositoryTests2.class //test case 2
})
public class AppTest {
}
You can start each test separately, but, if you start the suite test, the class will start every tests declared in #Suite.SuiteClasses.
These tests I am using just Spring JPA and Spring Boot. It is importante you have the dependencies in your project. Below you can see my maven dependencies:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
Note that I am testing JPA Data Classes (#DataJpaTest). For others test types you will using others Spring annotations. You can see some documentation about this here.
I hope help you! o/