Extract test framework into own sub-module

pmd-java/pom.xml

@@ -114,6 +114,11 @@
             <artifactId>pmd</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>net.sourceforge.pmd</groupId>
+            <artifactId>pmd-test</artifactId>
+            <version>${project.version}</version>
+        </dependency>
         <dependency>
             <groupId>org.apache.ant</groupId>
             <artifactId>ant</artifactId>

pmd-test/pom.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>pmd-test</artifactId>
+    <name>PMD Test Framework</name>
+
+    <parent>
+        <groupId>net.sourceforge.pmd</groupId>
+        <artifactId>pmd-aggregate</artifactId>
+        <version>5.1.4-SNAPSHOT</version>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>net.sourceforge.pmd</groupId>
+            <artifactId>pmd</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+        </dependency>
+    </dependencies>
+</project>

pom.xml

@@ -627,6 +627,7 @@
 
     <modules>
         <module>pmd</module>
+        <module>pmd-test</module>
         <module>pmd-java</module>
         <module>pmd-dist</module>
     </modules>