Task3

.github/workflows/build.yml

@@ -35,5 +35,43 @@ jobs:
           restore-keys: |
             ${{ runner.os}}-node_modules-
       - name: Build ${{ matrix.java-version }}
-        run: mvn -B clean test
+        run:  mvn -B clean install -DskipTests
+      # Étape PIT : test de mutation
+      - name: Run PIT Mutation Tests
+        run: |
+          mvn -B -f core/pom.xml org.pitest:pitest-maven:mutationCoverage \
+            -DreportsDirectory=target/pit-reports \
+            -DmutationThreshold=70 \
+            -DcoverageThreshold=80 \
+            -DtimestampedReports=false
+
+      # Sauvegarder les rapports PIT comme artefact GitHub
+      - name: Upload PIT Reports
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: pitest-report-${{ github.run_id }}-${{ matrix.java-version }}
+          path: core/target/pit-reports
+
+      # Vérifier si le build doit échouer selon les métriques
+      - name: Fail build if mutation score below threshold
+        run: |
+          REPORT=$(grep -oP '(?<=<mutationCoverage>).*(?=</mutationCoverage>)' core/target/pit-reports/mutations.xml | head -1)
+          SCORE=$(echo "$REPORT" | sed 's/%//')
+          THRESHOLD=70
+          echo "Mutation score: $SCORE%"
+          if (( $(echo "$SCORE < $THRESHOLD" | bc -l) )); then
+            echo "❌ Mutation score below threshold ($THRESHOLD%)"
+            exit 1
+          else
+            echo "✅ Mutation score OK"
+          fi
+
+      - name: Compare with previous PIT report
+        if: github.event_name == 'pull_request'
+        run: |
+          mkdir -p core/prev-pit-reports
+          # Exemple : récupérer le rapport précédent depuis un artefact ou le cache
+          # gh run download --name pit-reports --dir core/prev-pit-reports || echo "Aucun artefact précédent"
+          bash core/compare_pit.sh
 

core/compare_pit.sh

@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+# compare_pit.sh — Compare les métriques PIT entre la build actuelle et précédente
+
+set -e
+
+CURRENT_REPORT="target/pit-reports/mutations.xml"
+PREVIOUS_REPORT="prev-pit-reports/mutations.xml"
+
+if [ ! -f "$CURRENT_REPORT" ]; then
+  echo "❌ Aucun rapport PIT trouvé dans $CURRENT_REPORT"
+  exit 1
+fi
+
+if [ ! -f "$PREVIOUS_REPORT" ]; then
+  echo "⚠️ Aucun rapport PIT précédent trouvé — comparaison ignorée."
+  exit 0
+fi
+
+# Fonction pour extraire le pourcentage de mutationCoverage depuis un fichier XML
+extract_score() {
+  local file="$1"
+  grep -oP '(?<=<mutationCoverage>)[0-9]+(\.[0-9]+)?(?=%</mutationCoverage>)' "$file" | head -1
+}
+
+CURRENT_SCORE=$(extract_score "$CURRENT_REPORT")
+PREVIOUS_SCORE=$(extract_score "$PREVIOUS_REPORT")
+
+if [ -z "$CURRENT_SCORE" ] || [ -z "$PREVIOUS_SCORE" ]; then
+  echo "❌ Impossible d'extraire les scores PIT."
+  exit 1
+fi
+
+echo "🧪 PIT Comparison:"
+echo "   Ancien score : ${PREVIOUS_SCORE}%"
+echo "   Nouveau score : ${CURRENT_SCORE}%"
+
+# Comparaison numérique
+improvement=$(echo "$CURRENT_SCORE - $PREVIOUS_SCORE" | bc)
+
+if (( $(echo "$improvement < 0" | bc -l) )); then
+  echo "❌ Régression : le taux de mutation a baissé de ${improvement}%."
+  exit 1
+elif (( $(echo "$improvement == 0" | bc -l) )); then
+  echo "ℹ️  Pas de changement du taux de mutation."
+else
+  echo "✅ Amélioration de ${improvement}% du taux de mutation."
+fi

core/pom.xml

@@ -25,6 +25,9 @@
         -->
         <maven.build.timestamp.format>yyyy-MM-dd'T'HH:mm:ss'Z'</maven.build.timestamp.format>
         <builddate>${maven.build.timestamp}</builddate>
+
+        <!-- ✅ Added to prevent PITEST argLine errors -->
+        <argLine></argLine>
     </properties>
     <licenses>
         <license>
@@ -35,10 +38,35 @@
         </license>
     </licenses>
     <dependencies>
+        <!-- JUnit 5 (Jupiter) -->
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>5.9.3</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>5.9.3</version>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- Mockito Core -->
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <version>5.3.1</version>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- Mockito JUnit Jupiter (intégration Mockito + JUnit 5) -->
+
         <dependency>
             <groupId>com.graphhopper</groupId>
             <artifactId>graphhopper-web-api</artifactId>
-            <version>${project.parent.version}</version>
+            <version>11.0-SNAPSHOT</version>
         </dependency>
         <dependency>
             <groupId>com.carrotsearch</groupId>
@@ -119,6 +147,16 @@
             <artifactId>logback-classic</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>
@@ -164,6 +202,48 @@
                     <failOnUnableToExtractRepoInfo>false</failOnUnableToExtractRepoInfo>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.pitest</groupId>
+                <artifactId>pitest-maven</artifactId>
+                <version>1.20.6</version>
+                <dependencies>
+                    <dependency>
+                        <groupId>com.graphhopper</groupId>
+                        <artifactId>graphhopper-web-api</artifactId>
+                        <version>${project.parent.version}</version>
+                    </dependency>
+                    <dependency>
+                        <groupId>org.pitest</groupId>
+                        <artifactId>pitest-junit5-plugin</artifactId>
+                        <version>1.2.1</version>
+                    </dependency>
+                </dependencies>
+                <configuration>
+                    <targetClasses>
+                        <param>com.graphhopper.util.BreadthFirstSearch</param>
+                        <param>com.graphhopper.util.SimpleIntDeque</param>
+                        <param>com.graphhopper.util.AngleCalc</param>
+                        <param>com.graphhopper.util.ArrayUtil</param>
+                        <param>com.graphhopper.util.BitUtil</param>
+                    </targetClasses>
+                    <targetTests>
+                        <param>com.graphhopper.util.BreadthFirstSearchTest</param>
+                        <param>com.graphhopper.util.SimpleIntDequeTest</param>
+                        <param>com.graphhopper.util.AngleCalcTest</param>
+                        <param>com.graphhopper.util.ArrayUtilTest</param>
+                        <param>com.graphhopper.util.BitUtilTest</param>
+                        <param>com.graphhopper.util.DistanceCalcEuclideanMockitoTest</param>
+<!--                        <param>com.graphhopper.util.MutationFailTest</param>-->
+                    </targetTests>
+                    <mutators>
+                        <mutator>STRONGER</mutator>
+                    </mutators>
+                    <outputFormats>
+                        <param>HTML</param>
+                    </outputFormats>
+                    <timestampedReports>false</timestampedReports>
+                </configuration>
+            </plugin>
         </plugins>
 
         <!-- make version available at runtime via version file -->