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Swap helper in Deployers (Uniswap#443)
* helper function for a simple swap * set currencies when they are deployed and approved * swap handles native input in some cases; swapNativeInput to handle all native input cases; added tests for each scenario --------- Co-authored-by: Alice <[email protected]>
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| @@ -0,0 +1,138 @@ | ||
| // SPDX-License-Identifier: UNLICENSED | ||
| pragma solidity ^0.8.20; | ||
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| import {GasSnapshot} from "forge-gas-snapshot/GasSnapshot.sol"; | ||
| import {Test} from "forge-std/Test.sol"; | ||
| import {Vm} from "forge-std/Vm.sol"; | ||
| import {Hooks} from "../../src/libraries/Hooks.sol"; | ||
| import {FeeLibrary} from "../../src/libraries/FeeLibrary.sol"; | ||
| import {MockHooks} from "../../src/test/MockHooks.sol"; | ||
| import {IPoolManager} from "../../src/interfaces/IPoolManager.sol"; | ||
| import {MockERC20} from "solmate/test/utils/mocks/MockERC20.sol"; | ||
| import {IHooks} from "../../src/interfaces/IHooks.sol"; | ||
| import {Currency} from "../../src/types/Currency.sol"; | ||
| import {PoolManager} from "../../src/PoolManager.sol"; | ||
| import {PoolSwapTest} from "../../src/test/PoolSwapTest.sol"; | ||
| import {PoolDonateTest} from "../../src/test/PoolDonateTest.sol"; | ||
| import {Deployers} from "./Deployers.sol"; | ||
| import {Fees} from "../../src/Fees.sol"; | ||
| import {PoolId, PoolIdLibrary} from "../../src/types/PoolId.sol"; | ||
| import {PoolKey} from "../../src/types/PoolKey.sol"; | ||
| import {AccessLockHook} from "../../src/test/AccessLockHook.sol"; | ||
| import {IERC20Minimal} from "../../src/interfaces/external/IERC20Minimal.sol"; | ||
| import {BalanceDelta} from "../../src/types/BalanceDelta.sol"; | ||
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| /// @notice Testing Deployers.swap() and Deployers.swapNativeInput() | ||
| contract SwapHelperTest is Test, Deployers, GasSnapshot { | ||
| using PoolIdLibrary for PoolKey; | ||
| using Hooks for IHooks; | ||
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| address payable ALL_HOOKS_ADDRESS = payable(0xfFf0000000000000000000000000000000000000); | ||
| MockHooks mockHooks; | ||
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| function setUp() public { | ||
| MockHooks impl = new MockHooks(); | ||
| vm.etch(ALL_HOOKS_ADDRESS, address(impl).code); | ||
| mockHooks = MockHooks(ALL_HOOKS_ADDRESS); | ||
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| initializeManagerRoutersAndPoolsWithLiq(mockHooks); | ||
| } | ||
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| // --- Deployers.swap() tests --- // | ||
| function test_swap_helper_zeroForOne_exactInput() public { | ||
| int256 amountSpecified = 100; | ||
| BalanceDelta result = swap(key, true, amountSpecified, ZERO_BYTES); | ||
| assertEq(int256(result.amount0()), amountSpecified); | ||
| } | ||
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| function test_swap_helper_zeroForOne_exactOutput() public { | ||
| int256 amountSpecified = -100; | ||
| BalanceDelta result = swap(key, true, amountSpecified, ZERO_BYTES); | ||
| assertEq(int256(result.amount1()), amountSpecified); | ||
| } | ||
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| function test_swap_helper_oneForZero_exactInput() public { | ||
| int256 amountSpecified = 100; | ||
| BalanceDelta result = swap(key, false, amountSpecified, ZERO_BYTES); | ||
| assertEq(int256(result.amount1()), amountSpecified); | ||
| } | ||
|
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| function test_swap_helper_oneForZero_exactOutput() public { | ||
| int256 amountSpecified = -100; | ||
| BalanceDelta result = swap(key, false, amountSpecified, ZERO_BYTES); | ||
| assertEq(int256(result.amount0()), amountSpecified); | ||
| } | ||
|
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| function test_swap_helper_native_zeroForOne_exactInput() public { | ||
| int256 amountSpecified = 100; | ||
| BalanceDelta result = swap(nativeKey, true, amountSpecified, ZERO_BYTES); | ||
| assertEq(int256(result.amount0()), amountSpecified); | ||
| } | ||
|
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| function test_swap_helper_native_zeroForOne_exactOutput() public { | ||
| int256 amountSpecified = -100; | ||
| vm.expectRevert(); | ||
| swap(nativeKey, true, amountSpecified, ZERO_BYTES); | ||
| } | ||
|
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||
| function test_swap_helper_native_oneForZero_exactInput() public { | ||
| int256 amountSpecified = 100; | ||
| BalanceDelta result = swap(nativeKey, false, amountSpecified, ZERO_BYTES); | ||
| assertEq(int256(result.amount1()), amountSpecified); | ||
| } | ||
|
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| function test_swap_helper_native_oneForZero_exactOutput() public { | ||
| int256 amountSpecified = -100; | ||
| BalanceDelta result = swap(nativeKey, false, amountSpecified, ZERO_BYTES); | ||
| assertEq(int256(result.amount0()), amountSpecified); | ||
| } | ||
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| // --- Deployers.swapNativeInput() tests --- // | ||
| function test_swapNativeInput_helper_zeroForOne_exactInput() public { | ||
| int256 amountSpecified = 100; | ||
| BalanceDelta result = swapNativeInput(nativeKey, true, amountSpecified, ZERO_BYTES, 100 wei); | ||
| assertEq(int256(result.amount0()), amountSpecified); | ||
| } | ||
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| function test_swapNativeInput_helper_zeroForOne_exactOutput() public { | ||
| int256 amountSpecified = -100; | ||
| BalanceDelta result = swapNativeInput(nativeKey, true, amountSpecified, ZERO_BYTES, 200 wei); // overpay | ||
| assertEq(int256(result.amount1()), amountSpecified); | ||
| } | ||
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| function test_swapNativeInput_helper_oneForZero_exactInput() public { | ||
| int256 amountSpecified = 100; | ||
| BalanceDelta result = swapNativeInput(nativeKey, false, amountSpecified, ZERO_BYTES, 0 wei); | ||
| assertEq(int256(result.amount1()), amountSpecified); | ||
| } | ||
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| function test_swapNativeInput_helper_oneForZero_exactOutput() public { | ||
| int256 amountSpecified = -100; | ||
| BalanceDelta result = swapNativeInput(nativeKey, false, amountSpecified, ZERO_BYTES, 0 wei); | ||
| assertEq(int256(result.amount0()), amountSpecified); | ||
| } | ||
|
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| function test_swapNativeInput_helper_nonnative_zeroForOne_exactInput() public { | ||
| int256 amountSpecified = 100; | ||
| vm.expectRevert(); | ||
| swapNativeInput(key, true, amountSpecified, ZERO_BYTES, 0 wei); | ||
| } | ||
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| function test_swapNativeInput_helper_nonnative_zeroForOne_exactOutput() public { | ||
| int256 amountSpecified = -100; | ||
| vm.expectRevert(); | ||
| swapNativeInput(key, true, amountSpecified, ZERO_BYTES, 0 wei); | ||
| } | ||
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| function test_swapNativeInput_helper_nonnative_oneForZero_exactInput() public { | ||
| int256 amountSpecified = 100; | ||
| vm.expectRevert(); | ||
| swapNativeInput(key, false, amountSpecified, ZERO_BYTES, 0 wei); | ||
| } | ||
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| function test_swapNativeInput_helper_nonnative_oneForZero_exactOutput() public { | ||
| int256 amountSpecified = -100; | ||
| vm.expectRevert(); | ||
| swapNativeInput(key, false, amountSpecified, ZERO_BYTES, 0 wei); | ||
| } | ||
| } |