141 lines
4.3 KiB
Rust
141 lines
4.3 KiB
Rust
#![cfg(feature = "test-bpf")]
|
|
|
|
mod helpers;
|
|
|
|
use helpers::*;
|
|
use solana_program_test::*;
|
|
use solana_sdk::{
|
|
pubkey::Pubkey,
|
|
signature::{Keypair, Signer},
|
|
transaction::Transaction,
|
|
};
|
|
use spl_token_lending::{
|
|
instruction::refresh_reserve,
|
|
math::{Decimal, Rate, TryAdd, TryDiv, TryMul},
|
|
processor::process_instruction,
|
|
state::SLOTS_PER_YEAR,
|
|
};
|
|
|
|
#[tokio::test]
|
|
async fn test_success() {
|
|
let mut test = ProgramTest::new(
|
|
"spl_token_lending",
|
|
spl_token_lending::id(),
|
|
processor!(process_instruction),
|
|
);
|
|
|
|
// limit to track compute unit increase
|
|
test.set_bpf_compute_max_units(30_000);
|
|
|
|
const SOL_RESERVE_LIQUIDITY_LAMPORTS: u64 = 100 * LAMPORTS_TO_SOL;
|
|
const USDC_RESERVE_LIQUIDITY_FRACTIONAL: u64 = 100 * FRACTIONAL_TO_USDC;
|
|
const BORROW_AMOUNT: u64 = 100;
|
|
|
|
let user_accounts_owner = Keypair::new();
|
|
let lending_market = add_lending_market(&mut test);
|
|
|
|
let mut reserve_config = TEST_RESERVE_CONFIG;
|
|
reserve_config.loan_to_value_ratio = 80;
|
|
|
|
// Configure reserve to a fixed borrow rate of 1%
|
|
const BORROW_RATE: u8 = 1;
|
|
reserve_config.min_borrow_rate = BORROW_RATE;
|
|
reserve_config.optimal_borrow_rate = BORROW_RATE;
|
|
reserve_config.optimal_utilization_rate = 100;
|
|
|
|
let usdc_mint = add_usdc_mint(&mut test);
|
|
let usdc_oracle = add_usdc_oracle(&mut test);
|
|
let usdc_test_reserve = add_reserve(
|
|
&mut test,
|
|
&lending_market,
|
|
&usdc_oracle,
|
|
&user_accounts_owner,
|
|
AddReserveArgs {
|
|
borrow_amount: BORROW_AMOUNT,
|
|
liquidity_amount: USDC_RESERVE_LIQUIDITY_FRACTIONAL,
|
|
liquidity_mint_decimals: usdc_mint.decimals,
|
|
liquidity_mint_pubkey: usdc_mint.pubkey,
|
|
config: reserve_config,
|
|
slots_elapsed: 1, // elapsed from 1; clock.slot = 2
|
|
..AddReserveArgs::default()
|
|
},
|
|
);
|
|
|
|
let sol_oracle = add_sol_oracle(&mut test);
|
|
let sol_test_reserve = add_reserve(
|
|
&mut test,
|
|
&lending_market,
|
|
&sol_oracle,
|
|
&user_accounts_owner,
|
|
AddReserveArgs {
|
|
borrow_amount: BORROW_AMOUNT,
|
|
liquidity_amount: SOL_RESERVE_LIQUIDITY_LAMPORTS,
|
|
liquidity_mint_decimals: 9,
|
|
liquidity_mint_pubkey: spl_token::native_mint::id(),
|
|
config: reserve_config,
|
|
slots_elapsed: 1, // elapsed from 1; clock.slot = 2
|
|
..AddReserveArgs::default()
|
|
},
|
|
);
|
|
|
|
let mut test_context = test.start_with_context().await;
|
|
test_context.warp_to_slot(3).unwrap(); // clock.slot = 3
|
|
|
|
let ProgramTestContext {
|
|
mut banks_client,
|
|
payer,
|
|
last_blockhash: recent_blockhash,
|
|
..
|
|
} = test_context;
|
|
|
|
let mut transaction = Transaction::new_with_payer(
|
|
&[
|
|
refresh_reserve(
|
|
spl_token_lending::id(),
|
|
usdc_test_reserve.pubkey,
|
|
usdc_oracle.price_pubkey,
|
|
),
|
|
refresh_reserve(
|
|
spl_token_lending::id(),
|
|
sol_test_reserve.pubkey,
|
|
sol_oracle.price_pubkey,
|
|
),
|
|
],
|
|
Some(&payer.pubkey()),
|
|
);
|
|
|
|
transaction.sign(&[&payer], recent_blockhash);
|
|
assert!(banks_client.process_transaction(transaction).await.is_ok());
|
|
|
|
let sol_reserve = sol_test_reserve.get_state(&mut banks_client).await;
|
|
let usdc_reserve = usdc_test_reserve.get_state(&mut banks_client).await;
|
|
|
|
let slot_rate = Rate::from_percent(BORROW_RATE)
|
|
.try_div(SLOTS_PER_YEAR)
|
|
.unwrap();
|
|
let compound_rate = Rate::one().try_add(slot_rate).unwrap();
|
|
let compound_borrow = Decimal::from(BORROW_AMOUNT).try_mul(compound_rate).unwrap();
|
|
|
|
assert_eq!(
|
|
sol_reserve.liquidity.cumulative_borrow_rate_wads,
|
|
compound_rate.into()
|
|
);
|
|
assert_eq!(
|
|
sol_reserve.liquidity.cumulative_borrow_rate_wads,
|
|
usdc_reserve.liquidity.cumulative_borrow_rate_wads
|
|
);
|
|
assert_eq!(sol_reserve.liquidity.borrowed_amount_wads, compound_borrow);
|
|
assert_eq!(
|
|
sol_reserve.liquidity.borrowed_amount_wads,
|
|
usdc_reserve.liquidity.borrowed_amount_wads
|
|
);
|
|
assert_eq!(
|
|
sol_reserve.liquidity.market_price,
|
|
sol_test_reserve.market_price
|
|
);
|
|
assert_eq!(
|
|
usdc_reserve.liquidity.market_price,
|
|
usdc_test_reserve.market_price
|
|
);
|
|
}
|