diff --git a/src/fr/test/test_V1.java b/src/fr/test/test_V1.java
index 27fe945..2c37f3a 100644
--- a/src/fr/test/test_V1.java
+++ b/src/fr/test/test_V1.java
@@ -6,7 +6,7 @@ import java.util.HashSet;
 
 import static org.junit.Assert.*;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.BeforeEach;
 
 import src.fr.impl.*;
@@ -43,11 +43,14 @@ public class test_V1 {
     PartType IH= new PartTypeImpl("IH", Interior.class ,interior);
     PartType IS= new PartTypeImpl("IS", Interior.class ,interior);
 
-    CompatibilityManager cm = new CompatibilityManagerImpl();
+    CompatibilityManager cm;
 
 
     @BeforeEach
     public void init(){
+
+        cm = new CompatibilityManagerImpl();
+
         Set<PartType> EH120Requirement = new HashSet<PartType>();
         EH120Requirement.add(TC120);
 
diff --git a/src/fr/test/test_V2.java b/src/fr/test/test_V2.java
index 73a9bfe..14ac08d 100644
--- a/src/fr/test/test_V2.java
+++ b/src/fr/test/test_V2.java
@@ -6,7 +6,7 @@ import java.util.HashSet;
 
 import static org.junit.Assert.*;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.BeforeEach;
 
 import src.fr.impl.*;
@@ -14,6 +14,7 @@ import src.fr.impl.Parts.*;
 import src.fr.api.*;
 
 public class test_V2 {
+
     CategoryImpl engine = new CategoryImpl("Engine");
     CategoryImpl transmission = new CategoryImpl("Transmission");
     CategoryImpl exterior = new CategoryImpl("Exterior");
@@ -42,11 +43,14 @@ public class test_V2 {
     PartType IH= new PartTypeImpl("IH", Interior.class ,interior);
     PartType IS= new PartTypeImpl("IS", Interior.class ,interior);
 
-    CompatibilityManager cm = new CompatibilityManagerImpl();
+    CompatibilityManager cm;
 
 
     @BeforeEach
     public void init(){
+
+        cm = new CompatibilityManagerImpl();
+
         Set<PartType> EH120Requirement = new HashSet<PartType>();
         EH120Requirement.add(TC120);