diff --git a/backend/.idea/workspace.xml b/backend/.idea/workspace.xml
index 7fc67a8..bac7f1a 100644
--- a/backend/.idea/workspace.xml
+++ b/backend/.idea/workspace.xml
@@ -86,7 +86,7 @@
       <recent name="$PROJECT_DIR$/src/test/java/core/taskgroups" />
     </key>
   </component>
-  <component name="RunManager" selected="JUnit.TaskServiceTest">
+  <component name="RunManager" selected="JUnit.TaskServiceTest.deleteTask">
     <configuration name="TaskServiceTest" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <module name="demo" />
       <extension name="coverage">
@@ -118,6 +118,22 @@
         <option name="Make" enabled="true" />
       </method>
     </configuration>
+    <configuration name="TaskServiceTest.deleteTask" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="demo" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="core.tasks.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <option name="PACKAGE_NAME" value="core.tasks" />
+      <option name="MAIN_CLASS_NAME" value="core.tasks.TaskServiceTest" />
+      <option name="METHOD_NAME" value="deleteTask" />
+      <option name="TEST_OBJECT" value="method" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
     <configuration name="TaskServiceTest.editTask" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <module name="demo" />
       <extension name="coverage">
@@ -149,22 +165,6 @@
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="TaskgroupServiceTest.getTaskgroupByIDAndUsername" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
-      <module name="demo" />
-      <extension name="coverage">
-        <pattern>
-          <option name="PATTERN" value="core.taskgroups.*" />
-          <option name="ENABLED" value="true" />
-        </pattern>
-      </extension>
-      <option name="PACKAGE_NAME" value="core.taskgroups" />
-      <option name="MAIN_CLASS_NAME" value="core.taskgroups.TaskgroupServiceTest" />
-      <option name="METHOD_NAME" value="getTaskgroupByIDAndUsername" />
-      <option name="TEST_OBJECT" value="method" />
-      <method v="2">
-        <option name="Make" enabled="true" />
-      </method>
-    </configuration>
     <configuration name="DemoApplication" type="SpringBootApplicationConfigurationType" factoryName="Spring Boot" nameIsGenerated="true">
       <module name="demo" />
       <option name="SPRING_BOOT_MAIN_CLASS" value="core.DemoApplication" />
@@ -174,11 +174,11 @@
     </configuration>
     <recent_temporary>
       <list>
+        <item itemvalue="JUnit.TaskServiceTest.deleteTask" />
         <item itemvalue="JUnit.TaskServiceTest" />
         <item itemvalue="JUnit.TaskServiceTest.createTask" />
         <item itemvalue="JUnit.TaskServiceTest.editTask" />
         <item itemvalue="JUnit.TaskgroupServiceTest" />
-        <item itemvalue="JUnit.TaskgroupServiceTest.getTaskgroupByIDAndUsername" />
       </list>
     </recent_temporary>
   </component>
diff --git a/backend/src/test/java/core/tasks/TaskServiceTest.java b/backend/src/test/java/core/tasks/TaskServiceTest.java
index fed7515..1cd88a9 100644
--- a/backend/src/test/java/core/tasks/TaskServiceTest.java
+++ b/backend/src/test/java/core/tasks/TaskServiceTest.java
@@ -176,17 +176,16 @@ public class TaskServiceTest {
         assertEquals(ServiceExitCode.OK, result_11.getExitCode());
         assertEquals(task_11, result_11.getResult());
     }
-    /*@Test
+
+    @Test
     @SqlGroup({
             @Sql("classpath:taskgroupRepositoryTestEntries.sql"),
             @Sql("classpath:taskRepositoryEntries.sql")
     })
     void deleteTask() {
-        Task task = entityManager.find(Task.class, 1L);
-        task.getTaskgroup().getTasks().remove(task);
-        taskgroupRepository.save(task.getTaskgroup());
-        Task updatedTask = entityManager.find(Task.class, 1L);
-        taskRepository.deleteByTaskID(entityManager.find(Task.class, 1L).getTaskID());
-        assertThat(entityManager.find(Task.class, 1L)).isNull();
-    }*/
+        for(long i=1; i<=15; i++) {
+            taskRepository.deleteByTaskID(entityManager.find(Task.class, i).getTaskID());
+            assertThat(entityManager.find(Task.class, i)).isNull();
+        }
+    }
 }