diff --git a/src/test/test_funktionen.c b/src/test/test_funktionen.c
index 9ea83ab..3c10c4b 100644
--- a/src/test/test_funktionen.c
+++ b/src/test/test_funktionen.c
@@ -16,5 +16,9 @@ void test_square(void) {
     TEST_ASSERT_EQUAL_FLOAT(6.25, result);
 }
 
+void test_squareRoot(void) {
+    float result = squareRoot(9.0);
+    TEST_ASSERT_EQUAL_FLOAT(3.0, result);
+}
 
 #endif
\ No newline at end of file