message: Changed json format. Added suggestions to it.
diff: @@ -197,7 +197,7 @@ where
  mod tests {
  use super::*;
  use crate::testing::{mock_env, mock_info, mock_instance};
  - use cosmwasm_std::{coins, Empty, HumanAddr};
  + use cosmwasm_std::{coins, Empty};
  static CONTRACT: &[u8] = include_bytes!("../testdata/hackatom.wasm");
  @@ -207,7 +207,7 @@ mod tests {
  // init
  let info = mock_info("creator", &coins(1000, "earth"));
  - let msg = r#"{"verifier": "verifies", "beneficiary": "benefits"}"#.as_bytes();
  + let msg = br#"{"verifier": "verifies", "beneficiary": "benefits"}"#;
  call_init::<_, _, _, Empty>(&mut instance, &mock_env(), &info, msg)
  .unwrap()
  .unwrap();
  @@ -219,7 +219,7 @@ mod tests {
  // init
  let info = mock_info("creator", &coins(1000, "earth"));
  - let msg = r#"{"verifier": "verifies", "beneficiary": "benefits"}"#.as_bytes();
  + let msg = br#"{"verifier": "verifies", "beneficiary": "benefits"}"#;
  call_init::<_, _, _, Empty>(&mut instance, &mock_env(), &info, msg)
  .unwrap()
  .unwrap();
  @@ -238,27 +238,24 @@ mod tests {
  // init
  let info = mock_info("creator", &coins(1000, "earth"));
  - let msg = r#"{"verifier": "verifies", "beneficiary": "benefits"}"#.as_bytes();
  + let msg = br#"{"verifier": "verifies", "beneficiary": "benefits"}"#;
  call_init::<_, _, _, Empty>(&mut instance, &mock_env(), &info, msg)
  .unwrap()
  .unwrap();
  // change the verifier via migrate
  - let new_verifier = HumanAddr::from("someone else");
  - let msg = MigrateMsg {
  - verifier: new_verifier,
  - };
  - let info = mock_info(creator.as_str(), &[]);
  - let res = call_migrate(&mut instance, &mock_env(), &info, msg);
  - assert_eq!(0, res.messages.len());
  + let msg = br#"{"verifier": "someone else"}"#;
  + let info = mock_info("creator", &[]);
  + let _res = call_migrate::<_, _, _, Empty>(&mut instance, &mock_env(), &info, msg);
  // query the new_verifier with verifier
  - let msg = r#"{"verifier":{}}"#.as_bytes();
  + let msg = br#"{"verifier":{}}"#;
  let contract_result = call_query(&mut instance, &mock_env(), msg).unwrap();
  let query_response = contract_result.unwrap();
  - assert_eq!(query_response.verifier, new_verifier);
  -
  -
  + assert_eq!(
  + query_response.as_slice(),
  + b"{\"verifier\":\"someone else\"}"
  + );
  }
  #[test]
  @@ -273,7 +270,7 @@ mod tests {
  .unwrap();
  // query
  - let msg = r#"{"verifier":{}}"#.as_bytes();
  + let msg = br#"{"verifier":{}}"#;
  let contract_result = call_query(&mut instance, &mock_env(), msg).unwrap();
  let query_response = contract_result.unwrap();
  assert_eq!(query_response.as_slice(), b"{\"verifier\":\"verifies\"}");
  