refactoring: added test comments

test/fakultaet/test_fakultaet.c

@@ -4,14 +4,17 @@
 void setUp(){}
 void tearDown(){}
 
+// Test for the input zero
 void test_fakultaetOf0() {
 	TEST_ASSERT_EQUAL_INT(1, fakultaet(0));
 }
 
+// Test for the input one
 void test_fakultaetOf1() {
 	TEST_ASSERT_EQUAL_INT(1, fakultaet(1));
 }
 
+// Test for the input five
 void test_fakultaetOf5() {
 	TEST_ASSERT_EQUAL_INT(120, fakultaet(5));
 }