Complete exercise: testing

exercise/testing/tests/more_tests.rs

@@ -0,0 +1,6 @@
+use testing::{sploosh, splish};
+
+#[test]
+pub fn test_sploosh_splish() {
+    assert_eq!(sploosh(splish(-1, 0), splish(1, 1), splish(3, 2)), 4);
+}