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z_token.cairo
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use option::OptionTrait;
use test::test_utils::assert_eq;
use traits::TryInto;
use starknet::{ContractAddress, contract_address_const};
use zklend::interfaces::{IZTokenDispatcher, IZTokenDispatcherTrait};
use zklend::z_token::ZToken;
use tests::{deploy, event_keys};
use tests::assertions::assert_event_emitted;
use tests::mock::{
IAccountDispatcher, IAccountDispatcherTrait, IMockMarketDispatcher, IMockMarketDispatcherTrait
};
const MOCK_TOKEN_ADDRESS: felt252 = 9999;
#[derive(Drop)]
struct Setup {
alice: IAccountDispatcher,
bob: IAccountDispatcher,
market: IMockMarketDispatcher,
z_token: IZTokenDispatcher,
}
fn setup() -> Setup {
let alice = deploy::deploy_account(1);
let bob = deploy::deploy_account(2);
let market = deploy::deploy_mock_market();
let z_token = deploy::deploy_z_token(
contract_address_const::<999999>(), // owner
market.contract_address, // market
MOCK_TOKEN_ADDRESS.try_into().unwrap(), // underlying
'TOKEN_NAME', // name
'TOKEN_SYMBOL', // symbol
18 // decimals
);
market
.set_lending_accumulator(
MOCK_TOKEN_ADDRESS.try_into().unwrap(), // token
1000000000000000000000000000 // value
);
market
.mint_z_token(
z_token.contract_address, // z_token
alice.contract_address, // to
100000000000000000000 // amount
);
market
.set_lending_accumulator(
MOCK_TOKEN_ADDRESS.try_into().unwrap(), // token
2000000000000000000000000000 // value
);
Setup { alice, bob, market, z_token }
}
#[test]
#[available_gas(30000000)]
fn test_meta() {
let setup = setup();
assert_eq(@setup.z_token.name(), @'TOKEN_NAME', 'FAILED');
assert_eq(@setup.z_token.symbol(), @'TOKEN_SYMBOL', 'FAILED');
assert_eq(@setup.z_token.decimals(), @18, 'FAILED');
}
#[test]
#[available_gas(30000000)]
fn test_balance_should_scale_with_accumulator() {
let setup = setup();
assert_eq(
@setup.z_token.balanceOf(setup.alice.contract_address), @200000000000000000000, 'FAILED'
);
}
#[test]
#[available_gas(30000000)]
fn test_transfer_should_emit_events() {
let setup = setup();
setup
.alice
.erc20_transfer(
setup.z_token.contract_address, // contract_address
setup.bob.contract_address, // recipient
50000000000000000000 // amount
);
assert_event_emitted(
setup.z_token.contract_address,
event_keys::TRANSFER,
@ZToken::Transfer {
from: setup.alice.contract_address,
to: setup.bob.contract_address,
value: 50000000000000000000
}
);
assert_event_emitted(
setup.z_token.contract_address,
event_keys::RAW_TRANSFER,
@ZToken::RawTransfer {
from: setup.alice.contract_address,
to: setup.bob.contract_address,
raw_value: 25000000000000000000,
accumulator: 2000000000000000000000000000,
face_value: 50000000000000000000
}
);
}
#[test]
#[available_gas(30000000)]
fn test_transfer_all_should_emit_events() {
let setup = setup();
setup
.alice
.z_token_transfer_all(
setup.z_token.contract_address, // contract_address
setup.bob.contract_address // recipient
);
assert_event_emitted(
setup.z_token.contract_address,
event_keys::TRANSFER,
@ZToken::Transfer {
from: setup.alice.contract_address,
to: setup.bob.contract_address,
value: 200000000000000000000
}
);
assert_event_emitted(
setup.z_token.contract_address,
event_keys::RAW_TRANSFER,
@ZToken::RawTransfer {
from: setup.alice.contract_address,
to: setup.bob.contract_address,
raw_value: 100000000000000000000,
accumulator: 2000000000000000000000000000,
face_value: 200000000000000000000
}
);
}
#[test]
#[available_gas(30000000)]
fn test_approve_should_change_allowance() {
let setup = setup();
assert_eq(
@setup.z_token.allowance(setup.alice.contract_address, setup.bob.contract_address),
@0,
'FAILED'
);
setup
.alice
.erc20_approve(
setup.z_token.contract_address, // contract_address
setup.bob.contract_address, // spender
50000000000000000000 // amount
);
setup
.market
.set_lending_accumulator(
MOCK_TOKEN_ADDRESS.try_into().unwrap(), // token
3000000000000000000000000000 // value
);
assert_eq(
@setup.z_token.allowance(setup.alice.contract_address, setup.bob.contract_address),
@50000000000000000000,
'FAILED'
);
}
#[test]
#[available_gas(30000000)]
fn test_transfer_from() {
let setup = setup();
// Alice allownace for Bob: 50
// Alice balance: 400
setup
.alice
.erc20_approve(
setup.z_token.contract_address, // contract_address
setup.bob.contract_address, // spender
50000000000000000000 // amount
);
setup
.market
.set_lending_accumulator(
MOCK_TOKEN_ADDRESS.try_into().unwrap(), // token
4000000000000000000000000000 // value
);
// Bob transfers 40 from Alice
// Balances double:
// Alice: (400 - 40) * 2 = 720
// Bob: 40 * 2 = 80
// Allowance: 50 - 40 = 10
setup
.bob
.erc20_transfer_from(
setup.z_token.contract_address, // contract_address
setup.alice.contract_address, // sender
setup.bob.contract_address, // recipient
40000000000000000000 // amount
);
setup
.market
.set_lending_accumulator(
MOCK_TOKEN_ADDRESS.try_into().unwrap(), // token
8000000000000000000000000000 // value
);
assert_eq(
@setup.z_token.allowance(setup.alice.contract_address, setup.bob.contract_address),
@10000000000000000000,
'FAILED'
);
assert_eq(
@setup.z_token.balanceOf(setup.alice.contract_address), @720000000000000000000, 'FAILED'
);
assert_eq(
@setup.z_token.balanceOf(setup.bob.contract_address), @80000000000000000000, 'FAILED'
);
}
#[test]
#[available_gas(30000000)]
fn test_transfer_all() {
let setup = setup();
setup
.alice
.z_token_transfer_all(
setup.z_token.contract_address, // contract_address
setup.bob.contract_address // recipient
);
setup
.market
.set_lending_accumulator(
MOCK_TOKEN_ADDRESS.try_into().unwrap(), // token
4000000000000000000000000000 // value
);
assert_eq(@setup.z_token.balanceOf(setup.alice.contract_address), @0, 'FAILED');
assert_eq(
@setup.z_token.balanceOf(setup.bob.contract_address), @400000000000000000000, 'FAILED'
);
}
#[test]
#[available_gas(30000000)]
fn test_burn_all() {
let setup = setup();
setup
.market
.mint_z_token(
setup.z_token.contract_address, // z_token
setup.bob.contract_address, // to
100000000000000000000 // amount
);
setup
.market
.set_lending_accumulator(
MOCK_TOKEN_ADDRESS.try_into().unwrap(), // token
4000000000000000000000000000 // value
);
setup
.market
.burn_all_z_token(
setup.z_token.contract_address, // z_token
setup.alice.contract_address // user
);
assert_eq(@setup.market.get_last_call_result(), @400000000000000000000, 'FAILED');
assert_eq(@setup.z_token.balanceOf(setup.alice.contract_address), @0, 'FAILED');
assert_eq(
@setup.z_token.balanceOf(setup.bob.contract_address), @200000000000000000000, 'FAILED'
);
assert_eq(@setup.z_token.totalSupply(), @200000000000000000000, 'FAILED');
}