Testcase

test/project/BadCaseTaskTest.java

@@ -46,4 +46,12 @@ public class BadCaseTaskTest {
 
   }
 
+    @Test
+    @DisplayName("Assert an IllegalArgumentException when calling a non-Existing Task")
+    public void assertExceptionOnCallingANonextistingTask (){
+        String name = " Manager";
+        assertThrows(IllegalArgumentException.class, () -> !name.equals(taskManager.getName()));
+
+    }
+
 }