refactoring: Testvariablen verbessert

src/test/test_funktionen.c

@@ -70,7 +70,9 @@ void test_2_toThePowerOf_7(void)
     int expected = 128;
 
     /* act */
-    actual = power(2, 7);
+    int base = 2;
+    int exponent = 7;
+    actual = power(base, exponent);
 
     /* assert */
     TEST_ASSERT_EQUAL_INT(expected, actual);