diff --git a/TaschenrechnerTest.java b/TaschenrechnerTest.java
index 7c3a42d..3f3df53 100644
--- a/TaschenrechnerTest.java
+++ b/TaschenrechnerTest.java
@@ -85,5 +85,16 @@ public class TaschenrechnerTest {
 		
 		assertEquals(true, result);
 	}
+	
+	@SuppressWarnings("deprecation")
+	@Test
+	public void testKreisUmfang() {
+		int r = 3;
+		double u = 2* r *Math.PI;
+		double result = Taschenrechner.kreisUmfang(r);
+		
+		assertEquals(u, result);
+	}
+	
 
 }