fix bug with Terminal.concatOutput

src/final_assignment/task_1/tests/MassiveCornerCases.java

 package final_assignment.task_1.tests;
 
+import edu.kit.informatik.Terminal;
 import final_assignment.task_1.Assignment1TestBase;
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.DisplayName;
@@ -16,6 +17,7 @@ public class MassiveCornerCases extends Assignment1TestBase {
         for (final File fileEntry : folder.listFiles()) {
             log.info("\nFile: " + fileEntry.getPath());
             testWithIOFile(fileEntry.getPath());
+            clearData();
         }
     }
 }

src/final_assignment/task_1/tests/PerformanceTests.java

 package final_assignment.task_1.tests;
 
+import edu.kit.informatik.Terminal;
 import final_assignment.task_1.Assignment1TestBase;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@@ -15,6 +16,7 @@ public class PerformanceTests extends Assignment1TestBase {
         String args[] = {"torus", "20", "2"};
         for (int i = 0; i < 20; i++) {
             testUsingPairs(pairs, args);
+            clearData();
         }
     }
 }

src/test/TestBase.java

@@ -214,6 +214,7 @@ public abstract class TestBase {
         if (alwaysShowLog)
             printLog();
         logData.clear();
+        Terminal.concatOutput = true;
     }