grin-wallet/controller/tests/payment_proofs.rs

// Copyright 2021 The Grin Developers
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

//! tests differing accounts in the same wallet
#[macro_use]
extern crate log;
extern crate grin_wallet_controller as wallet;
extern crate grin_wallet_impls as impls;
extern crate grin_wallet_util;

use grin_wallet_libwallet as libwallet;
use impls::test_framework::{self, LocalWalletClient};
use libwallet::{InitTxArgs, Slate};
use std::sync::atomic::Ordering;
use std::thread;
use std::time::Duration;

#[macro_use]
mod common;
use common::{clean_output_dir, create_wallet_proxy, setup};
use grin_wallet_libwallet::slatepack::SlatepackAddressIndex;

/// Various tests on accounts within the same wallet
fn payment_proofs_test_impl(test_dir: &'static str) -> Result<(), libwallet::Error> {
	// Create a new proxy to simulate server and wallet responses
	let mut wallet_proxy = create_wallet_proxy(test_dir);
	let chain = wallet_proxy.chain.clone();
	let stopper = wallet_proxy.running.clone();

	create_wallet_and_add!(
		client1,
		wallet1,
		mask1_i,
		test_dir,
		"wallet1",
		None,
		&mut wallet_proxy,
		false,
		api1
	);

	let mask1 = mask1_i.as_ref();

	create_wallet_and_add!(
		client2,
		wallet2,
		mask2_i,
		test_dir,
		"wallet2",
		None,
		&mut wallet_proxy,
		false,
		api2
	);

	let mask2 = mask2_i.as_ref();

	// Set the wallet proxy listener running
	thread::spawn(move || {
		if let Err(e) = wallet_proxy.run() {
			error!("Wallet Proxy error: {}", e);
		}
	});

	// few values to keep things shorter

	// Do some mining
	let bh = 10u64;
	let _ =
		test_framework::award_blocks_to_wallet(&chain, wallet1.clone(), mask1, bh as usize, false);

	let address = Some(api2.get_slatepack_address(mask2, SlatepackAddressIndex(0))?);

	println!("Public address is: {:?}", address);
	let amount = 60_000_000_000;
	let mut slate = Slate::blank(1, false);
	// note this will increment the block count as part of the transaction "Posting"
	let args = InitTxArgs {
		src_acct_name: None,
		amount,
		minimum_confirmations: 2,
		max_outputs: 500,
		num_change_outputs: 1,
		selection_strategy_is_use_all: true,
		payment_proof_recipient_address: address.clone(),
		..Default::default()
	};
	let slate_i = api1.init_send_tx(mask1, args)?;

	assert_eq!(
		slate_i.payment_proof.as_ref().unwrap().receiver_address,
		address.as_ref().unwrap().pub_key,
	);
	println!(
		"Sender addr: {:?}",
		slate_i.payment_proof.as_ref().unwrap().sender_address
	);

	// Check we are creating a tx with kernel features 0
	// We will check this produces a Plain kernel later.
	assert_eq!(0, slate.kernel_features);

	slate = client1.send_tx_slate_direct("wallet2", &slate_i)?;
	api1.tx_lock_outputs(mask1, &slate)?;

	// Ensure what's stored in TX log for payment proof is correct
	let (_, txs) = api1.retrieve_txs(mask1, true, None, Some(slate.id), None)?;
	assert!(txs[0].payment_proof.is_some());
	let pp = txs[0].clone().payment_proof.unwrap();
	assert_eq!(
		pp.receiver_address,
		slate_i.payment_proof.as_ref().unwrap().receiver_address
	);
	assert!(pp.receiver_signature.is_some());
	assert_eq!(pp.sender_address_path, SlatepackAddressIndex(1));
	assert_eq!(pp.sender_signature, None);

	// check we should get an error at this point since proof is not complete
	let pp = api1.retrieve_payment_proof(mask1, true, None, Some(slate.id));
	assert!(pp.is_err());

	slate = api1.finalize_tx(mask1, &slate)?;
	api1.post_tx(mask1, &slate, true)?;

	let _ = test_framework::award_blocks_to_wallet(&chain, wallet1.clone(), mask1, 2, false);

	// Check payment proof here
	let mut pp = api1.retrieve_payment_proof(mask1, true, None, Some(slate.id))?;

	println!("Payment proof: {:?}", pp);

	// verify, should be good
	let res = api1.verify_payment_proof(mask1, &pp)?;
	assert_eq!(res, (true, false));

	// Modify values, should not be good
	pp.amount = 20;
	let res = api1.verify_payment_proof(mask1, &pp);
	assert!(res.is_err());

	// let logging finish
	stopper.store(false, Ordering::Relaxed);
	thread::sleep(Duration::from_millis(200));
	Ok(())
}

#[test]
fn payment_proofs() {
	let test_dir = "test_output/payment_proofs";
	setup(test_dir);
	if let Err(e) = payment_proofs_test_impl(test_dir) {
		panic!("Libwallet Error: {}", e);
	}
	clean_output_dir(test_dir);
}