Test Compose
JUnit5 extension for managing docker-compose files during test execution
Requirements
- Java 8
- Docker
- docker-compose
- JUnit5
Usage
Maven dependency
Maven central, see
<pom>
<dependencies>
<dependency>
<groupId>com.testcompose</groupId>
<artifactId>junit-extension</artifactId>
<version>0.3.1</version>
<scope>test</scope>
</dependency>
</dependencies>
</pom>
or JitPack release, read more
<pom>
<repositories>
<repository>
<id>jitpack.io</id>
<url>https://jitpack.io</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>com.github.exys666</groupId>
<artifactId>testcompose</artifactId>
<version>0.2.0</version>
<scope>test</scope>
</dependency>
</dependencies>
</pom>
Maven Central repository release coming soon!
Simple usage
src/test/resources/docker-compose-yml
version: '2.1'
services:
postgres:
image: 'postgres:9.6'
environment:
POSTGRES_DB: 'db'
POSTGRES_USER: 'user'
POSTGRES_PASSWORD: 'password'
ports:
- '5432'
src/test/java/com/mydomain/SomeIntegrationTest.java
package com.mydomain;
import com.testcompose.TestComposeExtension;
import com.testcompose.annotation.Await;
import com.testcompose.annotation.Compose;
import com.testcompose.annotation.Port;
import org.junit.jupiter.api.extension.ExtendWith;
import org.junit.jupiter.api.Test;
@ExtendWith(TestComposeExtension.class)
@Compose(
id = "my-id",
exportPorts = @Port(container = "postgres", port = 5432, as = "postgres.port"),
waitFor = @Await(container = "postgres", message = "database system is ready to accept connections")
)
class SomeIntegrationTest {
@Test
void someTest() {
String port = System.getProperty("postgres.port");
...
}
}
Attaching to running container composition
Extension can attach to running docker composition. In order to do that docker compose needs to be run with same id
as in @Compose annotation
docker-compose \
-f src/test/resources/docker-compose.yml \
-p my-id up \
--build
Integrating with Spring
src/test/java/com/mydomain/SpringIntegrationTest.java
package com.mydomain;
import com.testcompose.TestComposeExtension;
import com.testcompose.annotation.Await;
import com.testcompose.annotation.Compose;
import com.testcompose.annotation.Port;
import org.junit.jupiter.api.extension.ExtendWith;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.test.context.junit.jupiter.SpringExtension;
@ExtendWith(TestComposeExtension.class)
@ExtendWith(SpringExtension.class)
@Compose(
id = "my-id",
exportPorts = @Port(container = "postgres", port = 5432, as = "postgres.port"),
waitFor = @Await(container = "postgres", message = "database system is ready to accept connections")
)
@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
class SpringIntegrationTest {
@Test
void springTest() {
...
}
}
src/test/resources/application-test.properties
db.url=postgres://user:[email protected]:${postgres.port}/db