maven3-unit_integration_systemtest-setup

Example Projekt with a possible Setup for Unit / Integration / System Tests

Requirements

• Maven 3.3 (because usage of maven property ${maven.multiModuleProjectDirectory})

There is also a Problem with NetBeans 8.1. NetBeans cannot resolve dependencies with classifier. IntelliJ 14 or newer works as expected.

<dependency>
    <groupId>com.github.stefanheimberg.example</groupId>
    <artifactId>example-web</artifactId>
    <classifier>classes</classifier>
    <scope>test</scope>
</dependency>

Quickstart

# run only unit tests
mvn clean test

# run integration tests (disabled by default)
mvn clean verify -DskipITs=false

# run system tests (disabled by default)
mvn clean verify -DskipSTs=false

Unit-Tests

• Only one Class / Business function ist tested
• No Database
• No Container
• Smallest possible unit to test
• Dependencies to other Classes are Mocked. (Mockito)
• Tests are inside src/test of the artifact where the unit under test class reside

Integration-Tests

• Multiple Classes / Business functions are orchestrated and tested together
• In-Memory Database per TestCase
• EE Container. Started once for all Integration Tests
• Arquillian Remote Managed Wildfly
• Datasource Deployment per TestCase inside arquillian war (*-ds.xml)
• DB Tables are generated from JPA DDL (hibernate.hbm2ddl.auto=create-drop)
• Arquillian Deployments contains only the classes neede for the testcase itself
• Testdata loaded manually inside @Test or @Before method... (test data builders...)
• Tests are separated from other code

System-Tests

• Full Wildfly deployment of the final WAR/EAR File.
• Container configuration via *.cli command line commands
• Real Database used because we need (hibernate.hbm2ddl.auto=validate)
• Database setup before deployment with maven-flyway-plugin
• Testdata loaded with sql-maven-plugin
• Tests are separated from other code

Links

• Linked at StackOverflow Maven: How can I setup maven to run unit test and integration test separately
• https://dzone.com/articles/testing-java-ee-or-why-integration-tests-are-overr?edition=166457&utm_source=Daily%20Digest&utm_medium=email&utm_content=DZone%20Daily%20Digest&utm_campaign=dd%202016-04-28&userid=2603626