CI: test cargo test for crate basm

Author: byeongkeunahn

basm/src/bin/basm-lib.rs

@@ -13,4 +13,16 @@ extern crate basm_std as basm;
 
 #[allow(dead_code)]
 #[path = "../solution.rs"]
-mod solution;
+mod solution;
+
+#[cfg(test)]
+mod verify_test_works {
+    fn add(x: i64, y: i64) -> i64 {
+        x + y
+    }
+
+    #[test]
+    fn run() {
+        assert_eq!(8, add(5, 3));
+    }
+}