862 lines
30 KiB
Rust
862 lines
30 KiB
Rust
//! Config processor
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use crate::exchange_instruction::*;
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use crate::exchange_state::*;
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use crate::faucet;
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use log::*;
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use solana_metrics::inc_new_counter_info;
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use solana_sdk::account::KeyedAccount;
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use solana_sdk::instruction::InstructionError;
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use solana_sdk::pubkey::Pubkey;
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use std::cmp;
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pub struct ExchangeProcessor {}
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impl ExchangeProcessor {
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#[allow(clippy::needless_pass_by_value)]
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fn map_to_invalid_arg(err: std::boxed::Box<bincode::ErrorKind>) -> InstructionError {
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warn!("Deserialize failed, not a valid state: {:?}", err);
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InstructionError::InvalidArgument
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}
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fn is_account_unallocated(data: &[u8]) -> Result<(), InstructionError> {
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let state: ExchangeState = bincode::deserialize(data).map_err(Self::map_to_invalid_arg)?;
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if let ExchangeState::Unallocated = state {
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Ok(())
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} else {
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error!("New account is already in use");
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Err(InstructionError::InvalidAccountData)
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}
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}
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fn deserialize_account(data: &[u8]) -> Result<TokenAccountInfo, InstructionError> {
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let state: ExchangeState = bincode::deserialize(data).map_err(Self::map_to_invalid_arg)?;
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if let ExchangeState::Account(account) = state {
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Ok(account)
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} else {
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error!("Not a valid account");
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Err(InstructionError::InvalidAccountData)
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}
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}
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fn deserialize_order(data: &[u8]) -> Result<OrderInfo, InstructionError> {
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let state: ExchangeState = bincode::deserialize(data).map_err(Self::map_to_invalid_arg)?;
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if let ExchangeState::Trade(info) = state {
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Ok(info)
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} else {
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error!("Not a valid trade");
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Err(InstructionError::InvalidAccountData)
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}
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}
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fn serialize(state: &ExchangeState, data: &mut [u8]) -> Result<(), InstructionError> {
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let writer = std::io::BufWriter::new(data);
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match bincode::serialize_into(writer, state) {
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Ok(_) => Ok(()),
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Err(e) => {
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error!("Serialize failed: {:?}", e);
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Err(InstructionError::GenericError)
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}
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}
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}
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fn trade_to_token_account(trade: &OrderInfo) -> TokenAccountInfo {
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// Turn trade order into token account
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let token = match trade.side {
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OrderSide::Ask => trade.pair.Quote,
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OrderSide::Bid => trade.pair.Base,
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};
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let mut account = TokenAccountInfo::default().owner(&trade.owner);
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account.tokens[token] = trade.tokens_settled;
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account
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}
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fn calculate_swap(
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scaler: u64,
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to_trade: &mut OrderInfo,
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from_trade: &mut OrderInfo,
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profit_account: &mut TokenAccountInfo,
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) -> Result<(), InstructionError> {
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if to_trade.tokens == 0 || from_trade.tokens == 0 {
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error!("Inactive Trade, balance is zero");
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return Err(InstructionError::InvalidArgument);
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}
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if to_trade.price == 0 || from_trade.price == 0 {
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error!("Inactive Trade, price is zero");
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return Err(InstructionError::InvalidArgument);
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}
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// Calc swap
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trace!("tt {} ft {}", to_trade.tokens, from_trade.tokens);
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trace!("tp {} fp {}", to_trade.price, from_trade.price);
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let max_to_secondary = to_trade.tokens * to_trade.price / scaler;
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let max_to_primary = from_trade.tokens * scaler / from_trade.price;
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trace!("mtp {} mts {}", max_to_primary, max_to_secondary);
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let max_primary = cmp::min(max_to_primary, to_trade.tokens);
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let max_secondary = cmp::min(max_to_secondary, from_trade.tokens);
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trace!("mp {} ms {}", max_primary, max_secondary);
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let primary_tokens = if max_secondary < max_primary {
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max_secondary * scaler / from_trade.price
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} else {
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max_primary
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};
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let secondary_tokens = if max_secondary < max_primary {
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max_secondary
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} else {
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max_primary * to_trade.price / scaler
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};
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if primary_tokens == 0 || secondary_tokens == 0 {
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error!("Trade quantities to low to be fulfilled");
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return Err(InstructionError::InvalidArgument);
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}
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trace!("pt {} st {}", primary_tokens, secondary_tokens);
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let primary_cost = cmp::max(primary_tokens, secondary_tokens * scaler / to_trade.price);
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let secondary_cost = cmp::max(secondary_tokens, primary_tokens * from_trade.price / scaler);
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trace!("pc {} sc {}", primary_cost, secondary_cost);
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let primary_profit = primary_cost - primary_tokens;
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let secondary_profit = secondary_cost - secondary_tokens;
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trace!("pp {} sp {}", primary_profit, secondary_profit);
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let primary_token = to_trade.pair.Base;
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let secondary_token = from_trade.pair.Quote;
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// Update tokens
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if to_trade.tokens < primary_cost {
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error!("Not enough tokens in to account");
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return Err(InstructionError::InvalidArgument);
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}
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if from_trade.tokens < secondary_cost {
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error!("Not enough tokens in from account");
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return Err(InstructionError::InvalidArgument);
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}
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to_trade.tokens -= primary_cost;
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to_trade.tokens_settled += secondary_tokens;
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from_trade.tokens -= secondary_cost;
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from_trade.tokens_settled += primary_tokens;
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profit_account.tokens[primary_token] += primary_profit;
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profit_account.tokens[secondary_token] += secondary_profit;
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Ok(())
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}
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fn do_account_request(keyed_accounts: &mut [KeyedAccount]) -> Result<(), InstructionError> {
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const OWNER_INDEX: usize = 0;
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const NEW_ACCOUNT_INDEX: usize = 1;
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if keyed_accounts.len() < 2 {
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error!("Not enough accounts");
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return Err(InstructionError::InvalidArgument);
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}
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Self::is_account_unallocated(&keyed_accounts[NEW_ACCOUNT_INDEX].account.data)?;
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Self::serialize(
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&ExchangeState::Account(
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TokenAccountInfo::default()
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.owner(&keyed_accounts[OWNER_INDEX].unsigned_key())
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.tokens(100_000, 100_000, 100_000, 100_000),
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),
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&mut keyed_accounts[NEW_ACCOUNT_INDEX].account.data,
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)
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}
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fn do_transfer_request(
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keyed_accounts: &mut [KeyedAccount],
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token: Token,
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tokens: u64,
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) -> Result<(), InstructionError> {
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const OWNER_INDEX: usize = 0;
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const TO_ACCOUNT_INDEX: usize = 1;
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const FROM_ACCOUNT_INDEX: usize = 2;
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if keyed_accounts.len() < 3 {
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error!("Not enough accounts");
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return Err(InstructionError::InvalidArgument);
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}
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let mut to_account =
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Self::deserialize_account(&keyed_accounts[TO_ACCOUNT_INDEX].account.data)?;
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if &faucet::id() == keyed_accounts[FROM_ACCOUNT_INDEX].unsigned_key() {
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to_account.tokens[token] += tokens;
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} else {
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let state: ExchangeState =
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bincode::deserialize(&keyed_accounts[FROM_ACCOUNT_INDEX].account.data)
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.map_err(Self::map_to_invalid_arg)?;
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match state {
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ExchangeState::Account(mut from_account) => {
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if &from_account.owner != keyed_accounts[OWNER_INDEX].unsigned_key() {
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error!("Signer does not own from account");
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return Err(InstructionError::GenericError);
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}
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if from_account.tokens[token] < tokens {
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error!("From account balance too low");
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return Err(InstructionError::GenericError);
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}
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from_account.tokens[token] -= tokens;
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to_account.tokens[token] += tokens;
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Self::serialize(
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&ExchangeState::Account(from_account),
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&mut keyed_accounts[FROM_ACCOUNT_INDEX].account.data,
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)?;
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}
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ExchangeState::Trade(mut from_trade) => {
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if &from_trade.owner != keyed_accounts[OWNER_INDEX].unsigned_key() {
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error!("Signer does not own from account");
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return Err(InstructionError::GenericError);
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}
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let from_token = match from_trade.side {
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OrderSide::Ask => from_trade.pair.Quote,
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OrderSide::Bid => from_trade.pair.Base,
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};
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if token != from_token {
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error!("Trade to transfer from does not hold correct token");
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return Err(InstructionError::GenericError);
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}
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if from_trade.tokens_settled < tokens {
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error!("From trade balance too low");
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return Err(InstructionError::GenericError);
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}
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from_trade.tokens_settled -= tokens;
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to_account.tokens[token] += tokens;
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Self::serialize(
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&ExchangeState::Trade(from_trade),
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&mut keyed_accounts[FROM_ACCOUNT_INDEX].account.data,
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)?;
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}
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_ => {
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error!("Not a valid from account for transfer");
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return Err(InstructionError::InvalidArgument);
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}
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}
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}
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Self::serialize(
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&ExchangeState::Account(to_account),
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&mut keyed_accounts[TO_ACCOUNT_INDEX].account.data,
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)
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}
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fn do_order_request(
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keyed_accounts: &mut [KeyedAccount],
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info: &OrderRequestInfo,
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) -> Result<(), InstructionError> {
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const OWNER_INDEX: usize = 0;
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const ORDER_INDEX: usize = 1;
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const ACCOUNT_INDEX: usize = 2;
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if keyed_accounts.len() < 3 {
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error!("Not enough accounts");
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return Err(InstructionError::InvalidArgument);
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}
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Self::is_account_unallocated(&keyed_accounts[ORDER_INDEX].account.data)?;
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let mut account = Self::deserialize_account(&keyed_accounts[ACCOUNT_INDEX].account.data)?;
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if &account.owner != keyed_accounts[OWNER_INDEX].unsigned_key() {
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error!("Signer does not own account");
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return Err(InstructionError::GenericError);
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}
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let from_token = match info.side {
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OrderSide::Ask => info.pair.Base,
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OrderSide::Bid => info.pair.Quote,
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};
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if account.tokens[from_token] < info.tokens {
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error!("From token balance is too low");
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return Err(InstructionError::GenericError);
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}
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if let Err(e) = check_trade(info.side, info.tokens, info.price) {
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bincode::serialize(&e).unwrap();
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}
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// Trade holds the tokens in escrow
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account.tokens[from_token] -= info.tokens;
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inc_new_counter_info!("exchange_processor-trades", 1);
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Self::serialize(
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&ExchangeState::Trade(OrderInfo {
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owner: *keyed_accounts[OWNER_INDEX].unsigned_key(),
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side: info.side,
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pair: info.pair,
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tokens: info.tokens,
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price: info.price,
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tokens_settled: 0,
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}),
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&mut keyed_accounts[ORDER_INDEX].account.data,
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)?;
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Self::serialize(
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&ExchangeState::Account(account),
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&mut keyed_accounts[ACCOUNT_INDEX].account.data,
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)
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}
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fn do_order_cancellation(keyed_accounts: &mut [KeyedAccount]) -> Result<(), InstructionError> {
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const OWNER_INDEX: usize = 0;
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const ORDER_INDEX: usize = 1;
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if keyed_accounts.len() < 2 {
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error!("Not enough accounts");
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return Err(InstructionError::InvalidArgument);
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}
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let order = Self::deserialize_order(&keyed_accounts[ORDER_INDEX].account.data)?;
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if &order.owner != keyed_accounts[OWNER_INDEX].unsigned_key() {
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error!("Signer does not own trade");
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return Err(InstructionError::GenericError);
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}
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let token = match order.side {
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OrderSide::Ask => order.pair.Base,
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OrderSide::Bid => order.pair.Quote,
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};
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let mut account = TokenAccountInfo::default().owner(&order.owner);
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account.tokens[token] = order.tokens;
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account.tokens[token] += order.tokens_settled;
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// Turn trade order into a token account
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Self::serialize(
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&ExchangeState::Account(account),
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&mut keyed_accounts[ORDER_INDEX].account.data,
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)
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}
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fn do_swap_request(keyed_accounts: &mut [KeyedAccount]) -> Result<(), InstructionError> {
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const TO_ORDER_INDEX: usize = 1;
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const FROM_ORDER_INDEX: usize = 2;
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const PROFIT_ACCOUNT_INDEX: usize = 3;
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if keyed_accounts.len() < 4 {
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error!("Not enough accounts");
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return Err(InstructionError::InvalidArgument);
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}
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let mut to_order = Self::deserialize_order(&keyed_accounts[TO_ORDER_INDEX].account.data)?;
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let mut from_order =
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Self::deserialize_order(&keyed_accounts[FROM_ORDER_INDEX].account.data)?;
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let mut profit_account =
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Self::deserialize_account(&keyed_accounts[PROFIT_ACCOUNT_INDEX].account.data)?;
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if to_order.side != OrderSide::Ask {
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error!("To trade is not a To");
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return Err(InstructionError::InvalidArgument);
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}
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if from_order.side != OrderSide::Bid {
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error!("From trade is not a From");
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return Err(InstructionError::InvalidArgument);
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}
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if to_order.pair != from_order.pair {
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error!("Mismatched token pairs");
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return Err(InstructionError::InvalidArgument);
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}
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if to_order.side == from_order.side {
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error!("Matching trade sides");
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return Err(InstructionError::InvalidArgument);
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}
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if let Err(e) =
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Self::calculate_swap(SCALER, &mut to_order, &mut from_order, &mut profit_account)
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{
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error!(
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"Swap calculation failed from {} for {} to {} for {}",
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from_order.tokens, from_order.price, to_order.tokens, to_order.price,
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);
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return Err(e);
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}
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inc_new_counter_info!("exchange_processor-swaps", 1);
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if to_order.tokens == 0 {
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// Turn into token account
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Self::serialize(
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&ExchangeState::Account(Self::trade_to_token_account(&from_order)),
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&mut keyed_accounts[TO_ORDER_INDEX].account.data,
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)?;
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} else {
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Self::serialize(
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&ExchangeState::Trade(to_order),
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&mut keyed_accounts[TO_ORDER_INDEX].account.data,
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)?;
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}
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if from_order.tokens == 0 {
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// Turn into token account
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Self::serialize(
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&ExchangeState::Account(Self::trade_to_token_account(&from_order)),
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&mut keyed_accounts[FROM_ORDER_INDEX].account.data,
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)?;
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} else {
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Self::serialize(
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&ExchangeState::Trade(from_order),
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&mut keyed_accounts[FROM_ORDER_INDEX].account.data,
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)?;
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}
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Self::serialize(
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&ExchangeState::Account(profit_account),
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&mut keyed_accounts[PROFIT_ACCOUNT_INDEX].account.data,
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)
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}
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}
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pub fn process_instruction(
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_program_id: &Pubkey,
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keyed_accounts: &mut [KeyedAccount],
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data: &[u8],
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) -> Result<(), InstructionError> {
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solana_logger::setup();
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let command = bincode::deserialize::<ExchangeInstruction>(data).map_err(|err| {
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info!("Invalid transaction data: {:?} {:?}", data, err);
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InstructionError::InvalidInstructionData
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})?;
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trace!("{:?}", command);
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match command {
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ExchangeInstruction::AccountRequest => {
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ExchangeProcessor::do_account_request(keyed_accounts)
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}
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ExchangeInstruction::TransferRequest(token, tokens) => {
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ExchangeProcessor::do_transfer_request(keyed_accounts, token, tokens)
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}
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ExchangeInstruction::OrderRequest(info) => {
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ExchangeProcessor::do_order_request(keyed_accounts, &info)
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}
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ExchangeInstruction::OrderCancellation => {
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ExchangeProcessor::do_order_cancellation(keyed_accounts)
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}
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ExchangeInstruction::SwapRequest => ExchangeProcessor::do_swap_request(keyed_accounts),
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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use crate::{exchange_instruction, id};
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use solana_runtime::bank::Bank;
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use solana_runtime::bank_client::BankClient;
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use solana_sdk::client::SyncClient;
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use solana_sdk::genesis_block::create_genesis_block;
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use solana_sdk::signature::{Keypair, KeypairUtil};
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use solana_sdk::system_instruction;
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use std::mem;
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fn try_calc(
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scaler: u64,
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primary_tokens: u64,
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primary_price: u64,
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secondary_tokens: u64,
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secondary_price: u64,
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primary_tokens_expect: u64,
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secondary_tokens_expect: u64,
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primary_tokens_settled_expect: u64,
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secondary_tokens_settled_expect: u64,
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profit_account_tokens: Tokens,
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) -> Result<(), InstructionError> {
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trace!(
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"Swap {} for {} to {} for {}",
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primary_tokens,
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primary_price,
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secondary_tokens,
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secondary_price,
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);
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let mut to_trade = OrderInfo::default();
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let mut from_trade = OrderInfo::default().side(OrderSide::Bid);
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let mut profit_account = TokenAccountInfo::default();
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to_trade.tokens = primary_tokens;
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to_trade.price = primary_price;
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from_trade.tokens = secondary_tokens;
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from_trade.price = secondary_price;
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ExchangeProcessor::calculate_swap(
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scaler,
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&mut to_trade,
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&mut from_trade,
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&mut profit_account,
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)?;
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trace!(
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"{:?} {:?} {:?} {:?}\n{:?}\n{:?}\n{:?}\n{:?}",
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to_trade.tokens,
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primary_tokens_expect,
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from_trade.tokens,
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secondary_tokens_expect,
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primary_tokens_settled_expect,
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secondary_tokens_settled_expect,
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profit_account.tokens,
|
|
profit_account_tokens
|
|
);
|
|
|
|
assert_eq!(to_trade.tokens, primary_tokens_expect);
|
|
assert_eq!(from_trade.tokens, secondary_tokens_expect);
|
|
assert_eq!(to_trade.tokens_settled, primary_tokens_settled_expect);
|
|
assert_eq!(from_trade.tokens_settled, secondary_tokens_settled_expect);
|
|
assert_eq!(profit_account.tokens, profit_account_tokens);
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
#[rustfmt::skip]
|
|
fn test_calculate_swap() {
|
|
solana_logger::setup();
|
|
|
|
try_calc(1, 50, 2, 50, 1, 0, 0, 50, 50, Tokens::new( 0, 0, 0, 0)).unwrap_err();
|
|
try_calc(1, 50, 1, 0, 1, 0, 0, 50, 50, Tokens::new( 0, 0, 0, 0)).unwrap_err();
|
|
try_calc(1, 0, 1, 50, 1, 0, 0, 50, 50, Tokens::new( 0, 0, 0, 0)).unwrap_err();
|
|
try_calc(1, 50, 1, 50, 0, 0, 0, 50, 50, Tokens::new( 0, 0, 0, 0)).unwrap_err();
|
|
try_calc(1, 50, 0, 50, 1, 0, 0, 50, 50, Tokens::new( 0, 0, 0, 0)).unwrap_err();
|
|
try_calc(1, 1, 2, 2, 3, 1, 2, 0, 0, Tokens::new( 0, 0, 0, 0)).unwrap_err();
|
|
|
|
try_calc(1, 50, 1, 50, 1, 0, 0, 50, 50, Tokens::new( 0, 0, 0, 0)).unwrap();
|
|
try_calc(1, 1, 2, 3, 3, 0, 0, 2, 1, Tokens::new( 0, 1, 0, 0)).unwrap();
|
|
try_calc(1, 2, 2, 3, 3, 1, 0, 2, 1, Tokens::new( 0, 1, 0, 0)).unwrap();
|
|
try_calc(1, 3, 2, 3, 3, 2, 0, 2, 1, Tokens::new( 0, 1, 0, 0)).unwrap();
|
|
try_calc(1, 3, 2, 6, 3, 1, 0, 4, 2, Tokens::new( 0, 2, 0, 0)).unwrap();
|
|
try_calc(1000, 1, 2000, 3, 3000, 0, 0, 2, 1, Tokens::new( 0, 1, 0, 0)).unwrap();
|
|
try_calc(1, 3, 2, 7, 3, 1, 1, 4, 2, Tokens::new( 0, 2, 0, 0)).unwrap();
|
|
try_calc(1000, 3000, 333, 1000, 500, 0, 1,999, 1998, Tokens::new(1002, 0, 0, 0)).unwrap();
|
|
try_calc(1000, 50, 100, 50, 101, 0,45, 5, 49, Tokens::new( 1, 0, 0, 0)).unwrap();
|
|
}
|
|
|
|
fn create_bank(lamports: u64) -> (Bank, Keypair) {
|
|
let (genesis_block, mint_keypair) = create_genesis_block(lamports);
|
|
let mut bank = Bank::new(&genesis_block);
|
|
bank.add_instruction_processor(id(), process_instruction);
|
|
(bank, mint_keypair)
|
|
}
|
|
|
|
fn create_client(bank: Bank, mint_keypair: Keypair) -> (BankClient, Keypair) {
|
|
let owner = Keypair::new();
|
|
let bank_client = BankClient::new(bank);
|
|
bank_client
|
|
.transfer(42, &mint_keypair, &owner.pubkey())
|
|
.unwrap();
|
|
|
|
(bank_client, owner)
|
|
}
|
|
|
|
fn create_account(client: &BankClient, owner: &Keypair) -> Pubkey {
|
|
let new = Pubkey::new_rand();
|
|
let instruction = system_instruction::create_account(
|
|
&owner.pubkey(),
|
|
&new,
|
|
1,
|
|
mem::size_of::<ExchangeState>() as u64,
|
|
&id(),
|
|
);
|
|
client
|
|
.send_instruction(&owner, instruction)
|
|
.expect(&format!("{}:{}", line!(), file!()));
|
|
new
|
|
}
|
|
|
|
fn create_token_account(client: &BankClient, owner: &Keypair) -> Pubkey {
|
|
let new = create_account(&client, &owner);
|
|
let instruction = exchange_instruction::account_request(&owner.pubkey(), &new);
|
|
client
|
|
.send_instruction(owner, instruction)
|
|
.expect(&format!("{}:{}", line!(), file!()));
|
|
new
|
|
}
|
|
|
|
fn transfer(client: &BankClient, owner: &Keypair, to: &Pubkey, token: Token, tokens: u64) {
|
|
let instruction = exchange_instruction::transfer_request(
|
|
&owner.pubkey(),
|
|
to,
|
|
&faucet::id(),
|
|
token,
|
|
tokens,
|
|
);
|
|
client
|
|
.send_instruction(owner, instruction)
|
|
.expect(&format!("{}:{}", line!(), file!()));
|
|
}
|
|
|
|
fn trade(
|
|
client: &BankClient,
|
|
owner: &Keypair,
|
|
side: OrderSide,
|
|
pair: AssetPair,
|
|
from_token: Token,
|
|
src_tokens: u64,
|
|
trade_tokens: u64,
|
|
price: u64,
|
|
) -> (Pubkey, Pubkey) {
|
|
let trade = create_account(&client, &owner);
|
|
let src = create_token_account(&client, &owner);
|
|
transfer(&client, &owner, &src, from_token, src_tokens);
|
|
|
|
let instruction = exchange_instruction::trade_request(
|
|
&owner.pubkey(),
|
|
&trade,
|
|
side,
|
|
pair,
|
|
trade_tokens,
|
|
price,
|
|
&src,
|
|
);
|
|
client
|
|
.send_instruction(owner, instruction)
|
|
.expect(&format!("{}:{}", line!(), file!()));
|
|
(trade, src)
|
|
}
|
|
|
|
#[test]
|
|
fn test_exchange_new_account() {
|
|
solana_logger::setup();
|
|
let (bank, mint_keypair) = create_bank(10_000);
|
|
let (client, owner) = create_client(bank, mint_keypair);
|
|
|
|
let new = create_token_account(&client, &owner);
|
|
let new_account_data = client.get_account_data(&new).unwrap().unwrap();
|
|
|
|
// Check results
|
|
|
|
assert_eq!(
|
|
TokenAccountInfo::default()
|
|
.owner(&owner.pubkey())
|
|
.tokens(100_000, 100_000, 100_000, 100_000),
|
|
ExchangeProcessor::deserialize_account(&new_account_data).unwrap()
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_exchange_new_account_not_unallocated() {
|
|
solana_logger::setup();
|
|
let (bank, mint_keypair) = create_bank(10_000);
|
|
let (client, owner) = create_client(bank, mint_keypair);
|
|
|
|
let new = create_token_account(&client, &owner);
|
|
let instruction = exchange_instruction::account_request(&owner.pubkey(), &new);
|
|
client
|
|
.send_instruction(&owner, instruction)
|
|
.expect_err(&format!("{}:{}", line!(), file!()));
|
|
}
|
|
|
|
#[test]
|
|
fn test_exchange_new_transfer_request() {
|
|
solana_logger::setup();
|
|
let (bank, mint_keypair) = create_bank(10_000);
|
|
let (client, owner) = create_client(bank, mint_keypair);
|
|
|
|
let new = create_token_account(&client, &owner);
|
|
|
|
let instruction = exchange_instruction::transfer_request(
|
|
&owner.pubkey(),
|
|
&new,
|
|
&faucet::id(),
|
|
Token::A,
|
|
42,
|
|
);
|
|
client
|
|
.send_instruction(&owner, instruction)
|
|
.expect(&format!("{}:{}", line!(), file!()));
|
|
|
|
let new_account_data = client.get_account_data(&new).unwrap().unwrap();
|
|
|
|
// Check results
|
|
|
|
assert_eq!(
|
|
TokenAccountInfo::default()
|
|
.owner(&owner.pubkey())
|
|
.tokens(100_042, 100_000, 100_000, 100_000),
|
|
ExchangeProcessor::deserialize_account(&new_account_data).unwrap()
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_exchange_new_trade_request() {
|
|
solana_logger::setup();
|
|
let (bank, mint_keypair) = create_bank(10_000);
|
|
let (client, owner) = create_client(bank, mint_keypair);
|
|
|
|
let (trade, src) = trade(
|
|
&client,
|
|
&owner,
|
|
OrderSide::Ask,
|
|
AssetPair::default(),
|
|
Token::A,
|
|
42,
|
|
2,
|
|
1000,
|
|
);
|
|
|
|
let trade_account_data = client.get_account_data(&trade).unwrap().unwrap();
|
|
let src_account_data = client.get_account_data(&src).unwrap().unwrap();
|
|
|
|
// check results
|
|
|
|
assert_eq!(
|
|
OrderInfo {
|
|
owner: owner.pubkey(),
|
|
side: OrderSide::Ask,
|
|
pair: AssetPair::default(),
|
|
tokens: 2,
|
|
price: 1000,
|
|
tokens_settled: 0
|
|
},
|
|
ExchangeProcessor::deserialize_order(&trade_account_data).unwrap()
|
|
);
|
|
assert_eq!(
|
|
TokenAccountInfo::default()
|
|
.owner(&owner.pubkey())
|
|
.tokens(100_040, 100_000, 100_000, 100_000),
|
|
ExchangeProcessor::deserialize_account(&src_account_data).unwrap()
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_exchange_new_swap_request() {
|
|
solana_logger::setup();
|
|
let (bank, mint_keypair) = create_bank(10_000);
|
|
let (client, owner) = create_client(bank, mint_keypair);
|
|
|
|
let profit = create_token_account(&client, &owner);
|
|
let (to_trade, _) = trade(
|
|
&client,
|
|
&owner,
|
|
OrderSide::Ask,
|
|
AssetPair::default(),
|
|
Token::A,
|
|
2,
|
|
2,
|
|
2000,
|
|
);
|
|
let (from_trade, _) = trade(
|
|
&client,
|
|
&owner,
|
|
OrderSide::Bid,
|
|
AssetPair::default(),
|
|
Token::B,
|
|
3,
|
|
3,
|
|
3000,
|
|
);
|
|
|
|
let instruction =
|
|
exchange_instruction::swap_request(&owner.pubkey(), &to_trade, &from_trade, &profit);
|
|
client
|
|
.send_instruction(&owner, instruction)
|
|
.expect(&format!("{}:{}", line!(), file!()));
|
|
|
|
let to_trade_account_data = client.get_account_data(&to_trade).unwrap().unwrap();
|
|
let from_trade_account_data = client.get_account_data(&from_trade).unwrap().unwrap();
|
|
let profit_account_data = client.get_account_data(&profit).unwrap().unwrap();
|
|
|
|
// check results
|
|
|
|
assert_eq!(
|
|
OrderInfo {
|
|
owner: owner.pubkey(),
|
|
side: OrderSide::Ask,
|
|
pair: AssetPair::default(),
|
|
tokens: 1,
|
|
price: 2000,
|
|
tokens_settled: 2,
|
|
},
|
|
ExchangeProcessor::deserialize_order(&to_trade_account_data).unwrap()
|
|
);
|
|
|
|
assert_eq!(
|
|
TokenAccountInfo::default()
|
|
.owner(&owner.pubkey())
|
|
.tokens(1, 0, 0, 0),
|
|
ExchangeProcessor::deserialize_account(&from_trade_account_data).unwrap()
|
|
);
|
|
|
|
assert_eq!(
|
|
TokenAccountInfo::default()
|
|
.owner(&owner.pubkey())
|
|
.tokens(100_000, 100_001, 100_000, 100_000),
|
|
ExchangeProcessor::deserialize_account(&profit_account_data).unwrap()
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn test_exchange_trade_to_token_account() {
|
|
solana_logger::setup();
|
|
let (bank, mint_keypair) = create_bank(10_000);
|
|
let (client, owner) = create_client(bank, mint_keypair);
|
|
|
|
let profit = create_token_account(&client, &owner);
|
|
let (to_trade, _) = trade(
|
|
&client,
|
|
&owner,
|
|
OrderSide::Ask,
|
|
AssetPair::default(),
|
|
Token::A,
|
|
3,
|
|
3,
|
|
2000,
|
|
);
|
|
let (from_trade, _) = trade(
|
|
&client,
|
|
&owner,
|
|
OrderSide::Bid,
|
|
AssetPair::default(),
|
|
Token::B,
|
|
3,
|
|
3,
|
|
3000,
|
|
);
|
|
|
|
let instruction =
|
|
exchange_instruction::swap_request(&owner.pubkey(), &to_trade, &from_trade, &profit);
|
|
client
|
|
.send_instruction(&owner, instruction)
|
|
.expect(&format!("{}:{}", line!(), file!()));
|
|
|
|
let new = create_token_account(&client, &owner);
|
|
|
|
let instruction =
|
|
exchange_instruction::transfer_request(&owner.pubkey(), &new, &to_trade, Token::B, 1);
|
|
client
|
|
.send_instruction(&owner, instruction)
|
|
.expect(&format!("{}:{}", line!(), file!()));
|
|
|
|
let instruction =
|
|
exchange_instruction::transfer_request(&owner.pubkey(), &new, &from_trade, Token::A, 1);
|
|
client
|
|
.send_instruction(&owner, instruction)
|
|
.expect(&format!("{}:{}", line!(), file!()));
|
|
|
|
let new_account_data = client.get_account_data(&new).unwrap().unwrap();
|
|
|
|
// Check results
|
|
|
|
assert_eq!(
|
|
TokenAccountInfo::default()
|
|
.owner(&owner.pubkey())
|
|
.tokens(100_001, 100_001, 100_000, 100_000),
|
|
ExchangeProcessor::deserialize_account(&new_account_data).unwrap()
|
|
);
|
|
}
|
|
}
|