diff --git a/server/src/test/java/de/uftos/e2e/StudentsTest.java b/server/src/test/java/de/uftos/e2e/StudentsTest.java
index 67ce5712f..51b44ee16 100644
--- a/server/src/test/java/de/uftos/e2e/StudentsTest.java
+++ b/server/src/test/java/de/uftos/e2e/StudentsTest.java
@@ -1,5 +1,8 @@
 package de.uftos.e2e;
 
+import static de.uftos.utils.JsonGenerator.generatePageJson;
+import static de.uftos.utils.JsonGenerator.generateStudentJson;
+import static de.uftos.utils.JsonGenerator.generateTagJson;
 import static io.restassured.RestAssured.given;
 import static org.hamcrest.Matchers.equalTo;
 import static org.hamcrest.Matchers.notNullValue;
@@ -8,7 +11,6 @@
 import java.util.Collections;
 import java.util.List;
 import org.json.JSONException;
-import org.json.JSONObject;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
@@ -89,31 +91,6 @@ static void deleteCreatedStudents() {
         .statusCode(200);
   }
 
-  private static String generateStudentJson(String firstName, String lastName, List<String> tags)
-      throws JSONException {
-    return new JSONObject()
-        .put("firstName", firstName)
-        .put("lastName", lastName)
-        .put("tags", tags)
-        .toString();
-  }
-
-  private static String generateTagJson(String name)
-      throws JSONException {
-    return new JSONObject()
-        .put("tagName", name)
-        .toString();
-  }
-
-  private static String generatePageJson(int page, int size, List<String> sort)
-      throws JSONException {
-    return new JSONObject()
-        .put("page", page)
-        .put("size", size)
-        .put("sort", sort)
-        .toString();
-  }
-
   @Test
   void getAllStudents() throws JSONException {
     given().contentType(ContentType.JSON)
diff --git a/server/src/test/java/de/uftos/e2e/SubjectsTest.java b/server/src/test/java/de/uftos/e2e/SubjectsTest.java
index e924457d0..098c1b2db 100644
--- a/server/src/test/java/de/uftos/e2e/SubjectsTest.java
+++ b/server/src/test/java/de/uftos/e2e/SubjectsTest.java
@@ -1,14 +1,14 @@
 package de.uftos.e2e;
 
+import static de.uftos.utils.JsonGenerator.generatePageJson;
+import static de.uftos.utils.JsonGenerator.generateSubjectJson;
 import static io.restassured.RestAssured.given;
 import static org.hamcrest.Matchers.equalTo;
 import static org.hamcrest.Matchers.notNullValue;
 
 import io.restassured.http.ContentType;
 import java.util.Collections;
-import java.util.List;
 import org.json.JSONException;
-import org.json.JSONObject;
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
@@ -63,23 +63,6 @@ static void deleteCreatedStudents() {
         .statusCode(200);
   }
 
-  private static String generateSubjectJson(String name)
-      throws JSONException {
-    return new JSONObject()
-        .put("name", name)
-        .put("tags", Collections.emptyList())
-        .toString();
-  }
-
-  private static String generatePageJson(int page, int size, List<String> sort)
-      throws JSONException {
-    return new JSONObject()
-        .put("page", page)
-        .put("size", size)
-        .put("sort", sort)
-        .toString();
-  }
-
   @Test
   void getAllSubjects() throws JSONException {
     given().contentType(ContentType.JSON)
diff --git a/server/src/test/java/de/uftos/utils/JsonGenerator.java b/server/src/test/java/de/uftos/utils/JsonGenerator.java
new file mode 100644
index 000000000..52429397e
--- /dev/null
+++ b/server/src/test/java/de/uftos/utils/JsonGenerator.java
@@ -0,0 +1,81 @@
+package de.uftos.utils;
+
+import java.util.List;
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+/**
+ * This class helps to generate the JSON needed for the E2E tests.
+ */
+public class JsonGenerator {
+
+  /**
+   * Generates the student JSON.
+   *
+   * @param firstName The first name of the student
+   * @param lastName  The last name of the student
+   * @param tags      The ids of the tags the student has
+   * @return The requested JSON
+   * @throws JSONException If something is malformed.
+   */
+  public static String generateStudentJson(String firstName, String lastName, List<String> tags)
+      throws JSONException {
+    JSONArray jsonArray = new JSONArray();
+    tags.forEach(jsonArray::put);
+    return new JSONObject()
+        .put("firstName", firstName)
+        .put("lastName", lastName)
+        .put("tagIds", jsonArray)
+        .toString();
+  }
+
+  /**
+   * Generates the subject JSON.
+   *
+   * @param name The name of the subject
+   * @return The requested JSON
+   * @throws JSONException If something is malformed.
+   */
+  public static String generateSubjectJson(String name)
+      throws JSONException {
+    return new JSONObject()
+        .put("name", name)
+        .put("tagIds", new JSONArray())
+        .toString();
+  }
+
+  /**
+   * Generates the tag JSON.
+   *
+   * @param name The name of the tag
+   * @return The requested JSON
+   * @throws JSONException If something is malformed.
+   */
+  public static String generateTagJson(String name)
+      throws JSONException {
+    return new JSONObject()
+        .put("tagName", name)
+        .toString();
+  }
+
+  /**
+   * Generates the page JSON.
+   *
+   * @param page The page number
+   * @param size The size of the page
+   * @param sort How the data should be sorted
+   * @return The requested JSON
+   * @throws JSONException If something is malformed.
+   */
+  public static String generatePageJson(int page, int size, List<String> sort)
+      throws JSONException {
+    JSONArray jsonArray = new JSONArray();
+    sort.forEach(jsonArray::put);
+    return new JSONObject()
+        .put("page", page)
+        .put("size", size)
+        .put("sort", jsonArray)
+        .toString();
+  }
+}