Add test utility module.

jplag.frontend-testutils/pom.xml

@@ -0,0 +1,23 @@
+<?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>
+
+    <parent>
+        <groupId>de.jplag</groupId>
+        <artifactId>aggregator</artifactId>
+        <version>${revision}</version>
+    </parent>
+    <artifactId>frontend-testutils</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>de.jplag</groupId>
+            <artifactId>frontend-utils</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

jplag.frontend-testutils/src/test/java/de/jplag/testutils/TestErrorConsumer.java

@@ -0,0 +1,24 @@
+package de.jplag.testutils;
+
+import static org.junit.Assert.fail;
+
+import de.jplag.ErrorConsumer;
+
+/**
+ * Mock error consumer that fails the test case on error occurence.
+ * @author Timur Saglam
+ */
+public class TestErrorConsumer implements ErrorConsumer {
+
+    @Override
+    public void addError(String errorMessage) {
+        System.err.println(errorMessage);
+        fail(errorMessage);
+    }
+
+    @Override
+    public void print(String message, String longMessage) {
+        System.out.println(message);
+    }
+
+}

pom.xml

@@ -43,6 +43,7 @@
 
     <modules>
         <module>jplag.frontend-utils</module>
+        <module>jplag.frontend-testutils</module>
         <module>jplag.frontend.chars</module>
         <module>jplag.frontend.cpp</module>
         <module>jplag.frontend.csharp-6</module>
@@ -173,6 +174,11 @@
                 <artifactId>frontend-utils</artifactId>
                 <version>${project.version}</version>
             </dependency>
+            <dependency>
+                <groupId>${project.groupId}</groupId>
+                <artifactId>frontend-testutils</artifactId>
+                <version>${project.version}</version>
+            </dependency>
             <dependency>
                 <groupId>${project.groupId}</groupId>
                 <artifactId>jplag</artifactId>
@@ -180,13 +186,6 @@
             </dependency>
         </dependencies>
     </dependencyManagement>
-    <dependencies>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
 
     <build>
         <pluginManagement>