refactor(ci): dtt transition

Jenkinsfile

@@ -4,7 +4,7 @@ def version = ""
 pipeline {
 
     environment {
-        registry = "hftstuttgart/modocot-backend"
+        registry = "hftstuttgart/dtt-backend"
         registryCredential = 'Dockerhub'
         dockerImage = ''
     }

src/main/java/de/hftstuttgart/utils/ExecuteTestUtil.java

@@ -47,9 +47,9 @@ public class ExecuteTestUtil  {
     public ResultSummary runTests(String assignmentId, Path workDirectory) throws IOException, InterruptedException {
 
         // define paths for the test, the submission and where the result is to be expected afterwards
-        Path testPath   = Paths.get(workDirectory.toAbsolutePath().toString(), "test");
-        Path srcPath    = Paths.get(workDirectory.toAbsolutePath().toString(), "src");
-        Path resultPath = Paths.get(workDirectory.toAbsolutePath().toString(), "result");
+        Path testPath   = Paths.get(workDirectory.toAbsolutePath().toString(), "/test");
+        Path srcPath    = Paths.get(workDirectory.toAbsolutePath().toString(), "/src");
+        Path resultPath = Paths.get(workDirectory.toAbsolutePath().toString(), "/result");
 
         // clone stored test to tmpdir
         LOG.debug("copying pre-downloaded unitttest repo");