Removing keyword public form classe CalcEngineTest

src/test/java/fr/nancy/iut/CalcEngineTest.java

@@ -6,7 +6,7 @@ import org.junit.jupiter.api.Test;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
-public class CalcEngineTest {
+class CalcEngineTest {
 
     private final CalcEngine engine = new CalcEngine();