diff --git a/tests/1/t1.zwei b/tests/1/t1.zwei
new file mode 100755
index 0000000..a3278a9
--- /dev/null
+++ b/tests/1/t1.zwei
@@ -0,0 +1,15 @@
+class Factorial {
+// Solution it�rative
+def factorial1 (x : Int ): Int = {
+var p : Int = 1;
+while (x > 0 ) {
+set p = p * x;
+set x = x - 1;
+}
+p
+};
+// Solution r�cursive
+def factorial2 (x : Int ): Int =
+if (x == 0 ) 1
+else x * this.factorial2 (x - 1 );
+}
\ No newline at end of file