Java utilities and JUnit integration for LocalStack.
- Java
- Maven
- Docker
- LocalStack
In order to use LocalStack with Java, this project provides a simple JUnit runner and a JUnit 5 extension. Take a look at the example JUnit tests in src/test/java.
By default, the JUnit Test Runner starts LocalStack in a Docker container, for the duration of the test. The container can be configured by using the @LocalstackDockerProperties annotation.
... import cloud.localstack.LocalstackTestRunner; import cloud.localstack.TestUtils; import cloud.localstack.docker.annotation.LocalstackDockerProperties; @RunWith(LocalstackTestRunner.class) @LocalstackDockerProperties(services ={"s3", "sqs", "kinesis:77077" }) public class MyCloudAppTest{@Test public void testLocalS3API(){AmazonS3 s3 = TestUtils.getClientS3() List<Bucket> buckets = s3.listBuckets(); ... } } Or with JUnit 5 :
@ExtendWith(LocalstackDockerExtension.class) @LocalstackDockerProperties(...) public class MyCloudAppTest{... } The LocalStack JUnit test runner is published as an artifact in Maven Central. Simply add the following dependency to your pom.xml file:
<dependency> <groupId>cloud.localstack</groupId> <artifactId>localstack-utils</artifactId> <version>0.2.1</version> </dependency> You can configure the Docker behaviour using the @LocalstackDockerProperties annotation with the following parameters:
| property | usage | type | default value |
|---|---|---|---|
pullNewImage | Determines if a new image is pulled from the docker repo before the tests are run. | boolean | false |
randomizePorts | Determines if the container should expose the default local stack ports (4567-4583) or if it should expose randomized ports. | boolean | false |
services | Determines which services should be run when the localstack starts. | String[] | All |
imageTag | Use a specific image tag for docker container | String | latest |
hostNameResolver | Used for determining the host name of the machine running the docker containers so that the containers can be addressed. | IHostNameResolver | localhost |
environmentVariableProvider | Used for injecting environment variables into the container. | IEnvironmentVariableProvider | Empty Map |
useSingleDockerContainer | Whether a singleton container should be used by all test classes. | boolean | false |
Note: When specifying the port in the services property, you cannot use randomizePorts = true
For more details, please refer to the README of the main LocalStack repo: https://github.com/localstack/localstack
To build the latest version of the code via Maven:
make build - v0.2.2: Addition of CloudWatch Logs endpoint configuration
- v0.2.1: Move Java sources into separate project; mark non-Docker Java
LocalstackExtensionas deprecated; update paths for Python code lookup in Docker container
Copyright (c) 2017-2020 LocalStack maintainers and contributors.
This version of LocalStack is released under the Apache License, Version 2.0 (see LICENSE.txt).