About
A test jar is a jar file used to share test code between module.
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Steps
In two steps:
Creation of the test jar
- Creating the test jar that is shared with the other modules (ie all test class will be package in a test jar)
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>test-jar</goal>
</goals>
</execution>
</executions>
</plugin>
Adding it as a dependency
- Then in the module that uses this class, add it as dependency
<dependency>
<groupId>group-id</groupId>
<artifactId>module1</artifactId>
<version>1.0.0-SNAPSHOT</version>
<scope>test</scope>
<type>test-jar</type>
</dependency>
Using
testsinstead of
test-jarwill not work during a reactor build of the test JAR module and any consumer if a lifecycle phase prior to install is invoked. In such a scenario, Maven will not resolve the test JAR from the output of the reactor build but from the local/remote repository.