Resolve "Die Statistiken sollten auch in ElasticSearch hinterlegt werden."

Related to #384 (closed)

src/test/java/at/ac/uibk/gitsearch/web/rest/ReviewRatingResourceIT.java

@@ -93,22 +93,22 @@ class ReviewRatingResourceIT {
 
         sampleComment.setDescriptionIsClear(false);
         sampleComment.setRequirementsAreClear(false);
-        sampleComment.setDescriptionComment("");
+        sampleComment.setDescriptionComment("descriptionComment");
 
         sampleComment.setInformationRequiredComplete(false);
         sampleComment.setAllMaterialsAvailable(false);
-        sampleComment.setInformationRequiredComment("");
+        sampleComment.setInformationRequiredComment("informationRequiredComment");
 
         sampleComment.setIsStructured(false);
         sampleComment.setSubExercisesAreClear(false);
-        sampleComment.setStructuredComment("");
+        sampleComment.setStructuredComment("structuredComment");
 
         sampleComment.setSolutionIsCorrect(false);
-        sampleComment.setSolutionComment("");
+        sampleComment.setSolutionComment("solutionComment");
 
         sampleComment.setMetadataIsComplete(false);
         sampleComment.setMetadataIsCorrect(false);
-        sampleComment.setMetadataComment("");
+        sampleComment.setMetadataComment("metadataComment");
 
         ReviewRating reviewRating = new ReviewRating();
         reviewRating.setStatus(DEFAULT_STATUS);