From 2059718a5c0ee7eee9be917125004a6ae1066d2c Mon Sep 17 00:00:00 2001
From: Sebastian Frick <sebastian@monkeysquad.de>
Date: Wed, 18 Feb 2026 23:59:05 +0100
Subject: [PATCH] chore(backend): JaCoCo Code Coverage und PIT Mutation Testing
 einrichten
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JaCoCo läuft automatisch bei mvn verify (HTML/XML/CSV Reports).
PIT als eigenes Maven-Profil `mutation` — Scope auf Domain + Application Layer.
---
 backend/pom.xml | 68 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)

diff --git a/backend/pom.xml b/backend/pom.xml
index 9a96896..5976d76 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -29,6 +29,9 @@
         <!-- Dependency Versions -->
         <jjwt.version>0.12.5</jjwt.version>
         <springdoc.version>2.3.0</springdoc.version>
+        <jacoco.version>0.8.12</jacoco.version>
+        <pitest.version>1.17.4</pitest.version>
+        <pitest-junit5.version>1.2.1</pitest-junit5.version>
     </properties>
 
     <dependencies>
@@ -142,6 +145,71 @@
                     <target>21</target>
                 </configuration>
             </plugin>
+
+            <plugin>
+                <groupId>org.jacoco</groupId>
+                <artifactId>jacoco-maven-plugin</artifactId>
+                <version>${jacoco.version}</version>
+                <executions>
+                    <execution>
+                        <id>prepare-agent</id>
+                        <goals>
+                            <goal>prepare-agent</goal>
+                        </goals>
+                    </execution>
+                    <execution>
+                        <id>report</id>
+                        <phase>verify</phase>
+                        <goals>
+                            <goal>report</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>
+
+    <profiles>
+        <profile>
+            <id>mutation</id>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.pitest</groupId>
+                        <artifactId>pitest-maven</artifactId>
+                        <version>${pitest.version}</version>
+                        <dependencies>
+                            <dependency>
+                                <groupId>org.pitest</groupId>
+                                <artifactId>pitest-junit5-plugin</artifactId>
+                                <version>${pitest-junit5.version}</version>
+                            </dependency>
+                        </dependencies>
+                        <configuration>
+                            <targetClasses>
+                                <param>de.effigenix.domain.*</param>
+                                <param>de.effigenix.application.*</param>
+                            </targetClasses>
+                            <targetTests>
+                                <param>de.effigenix.domain.*</param>
+                                <param>de.effigenix.application.*</param>
+                            </targetTests>
+                            <mutators>
+                                <mutator>DEFAULTS</mutator>
+                            </mutators>
+                        </configuration>
+                        <executions>
+                            <execution>
+                                <id>pit-report</id>
+                                <phase>test</phase>
+                                <goals>
+                                    <goal>mutationCoverage</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+    </profiles>
 </project>