Fixed failing tests

src/main/java/at/ac/uibk/gitsearch/service/ExerciseService.java

@@ -312,9 +312,13 @@ public class ExerciseService {
      * @param exerciseToken to retrieve the location of the files to rename
      */
     private void renameFiles(String exerciseToken) {
-        File problemStatementFile = Objects.requireNonNull(new File("tmp-import", exerciseToken).listFiles((file, name) -> name.startsWith("Problem-Statement-") && name.endsWith(".md")))[0];
-        if (!problemStatementFile.renameTo(new File("tmp-import" + File.separator + exerciseToken, "exercise.md"))) {
-            log.warn("Unable to rename file [{}]. Skipping..", problemStatementFile.getName());
+        try {
+            File problemStatementFile = Objects.requireNonNull(new File("tmp-import", exerciseToken).listFiles((file, name) -> name.startsWith("Problem-Statement-") && name.endsWith(".md")))[0];
+            if (!problemStatementFile.renameTo(new File("tmp-import" + File.separator + exerciseToken, "exercise.md"))) {
+                log.error("Unable to rename file [{}]. Skipping..", problemStatementFile.getName());
+            }
+        } catch (ArrayIndexOutOfBoundsException e) {
+            log.error("File to rename could not be found in [{}].", "tmp-import" + File.separator + exerciseToken);
         }
 
     }

src/test/java/at/ac/uibk/gitsearch/service/ExerciseServiceIT.java

@@ -96,7 +96,7 @@ public class ExerciseServiceIT {
 
     @Test
     public void testApplyExerciseInfoChanges() throws Exception {
-        File metadata = new File("tmp-import/" + token, "Exercise-Details-something.json");
+        File metadata = new File("tmp-import/" + token, "metadata.yaml");
         metadata.getParentFile().mkdirs();
         metadata.createNewFile();