message: Add high level test test_check_wasm_old_contract
diff: @@ -114,6 +114,25 @@ mod test {
  check_wasm(CONTRACT).unwrap();
  }
  + #[test]
  + fn test_check_wasm_old_contract() {
  + match check_wasm(CONTRACT_0_7) {
  + Err(Error::ValidationErr { msg, .. }) => assert!(msg.starts_with(
  + "Wasm contract doesn't have required export: \"cosmwasm_vm_version_1\""
  + )),
  + Err(e) => panic!("Unexpected error {:?}", e),
  + Ok(_) => panic!("This must not succeeed"),
  + };
  +
  + match check_wasm(CONTRACT_0_6) {
  + Err(Error::ValidationErr { msg, .. }) => assert!(msg.starts_with(
  + "Wasm contract doesn't have required export: \"cosmwasm_vm_version_1\""
  + )),
  + Err(e) => panic!("Unexpected error {:?}", e),
  + Ok(_) => panic!("This must not succeeed"),
  + };
  + }
  +
  #[test]
  fn test_check_wasm_corrupted_data() {
  match check_wasm(CORRUPTED) {
  