add cache

mumu/tests/src/integration_tests.rs

@@ -0,0 +1,38 @@
+#[cfg(test)]
+mod tests {
+    use casperlabs_engine_test_support::{Code, Error, SessionBuilder, TestContextBuilder, Value};
+    use casperlabs_types::{account::PublicKey, U512};
+
+    const MY_ACCOUNT: PublicKey = PublicKey::ed25519_from([7u8; 32]);
+    // define KEY constant to match that in the contract
+    const KEY: &str = "special_value";
+    const VALUE: &str = "hello world";
+
+    #[test]
+    fn should_store_hello_world() {
+        let mut context = TestContextBuilder::new()
+            .with_account(MY_ACCOUNT, U512::from(128_000_000))
+            .build();
+
+        // The test framework checks for compiled Wasm files in '<current working dir>/wasm'.  Paths
+        // relative to the current working dir (e.g. 'wasm/contract.wasm') can also be used, as can
+        // absolute paths.
+        let session_code = Code::from("contract.wasm");
+        let session_args = (VALUE,);
+        let session = SessionBuilder::new(session_code, session_args)
+            .with_address(MY_ACCOUNT)
+            .with_authorization_keys(&[MY_ACCOUNT])
+            .build();
+
+        let result_of_query: Result<Value, Error> = context.run(session).query(MY_ACCOUNT, &[KEY]);
+
+        let returned_value = result_of_query.expect("should be a value");
+
+        let expected_value = Value::from_t(VALUE.to_string()).expect("should construct Value");
+        assert_eq!(expected_value, returned_value);
+    }
+}
+
+fn main() {
+    panic!("Execute \"cargo test\" to test the contract, not \"cargo run\".");
+}