contracts: migration simulation: Test migration simulation

README.md

@@ -618,7 +618,8 @@ brownie pm install OpenZeppelin/openzeppelin-contracts@3.3.0
 
 Run, from `packages/contracts/`:
 ```
-brownie test -s
+brownie test tests/simulation_test.py -s
+brownie test tests/migration_test.py -s
 ```
 
 ### OpenEthereum
@@ -644,7 +645,8 @@ yarn start-dev-chain:openethereum
 
 Then, again from `packages/contracts/`, run it with:
 ```
-brownie test -s --network openethereum
+brownie test tests/simulation_test.py -s --network openethereum
+brownie test tests/migration_test.py -s --network openethereum
 ```
 
 To stop the Openethereum node, you can do it with:

packages/contracts/contracts/TestContracts/TroveManagerNoBootstrap.sol

@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity 0.6.11;
+
+import "../TroveManager.sol";
+
+
+contract TroveManagerNoBootstrap is TroveManager {
+    function _requireAfterBootstrapPeriod() internal view override {}
+}

packages/contracts/contracts/TroveManager.sol

@@ -1488,7 +1488,7 @@ contract TroveManager is LiquityBase, Ownable, CheckContract, ITroveManager {
         require(_getTCR(_price) >= MCR, "TroveManager: Cannot redeem when TCR < MCR");
     }
 
-    function _requireAfterBootstrapPeriod() internal view {
+    function _requireAfterBootstrapPeriod() internal view virtual {
         uint systemDeploymentTime = lqtyToken.getDeploymentStartTime();
         require(block.timestamp >= systemDeploymentTime.add(BOOTSTRAP_PERIOD), "TroveManager: Redemptions are not allowed during bootstrap phase");
     }

packages/contracts/tests/helpers.py

@@ -1,13 +1,21 @@
-from brownie import Wei
+import pytest
+
+from brownie import *
+from accounts import *
 
 ZERO_ADDRESS = '0x' + '0'.zfill(40)
 MAX_BYTES_32 = '0x' + 'F' * 64
+MAX_FEE = Wei(1e18)
+
+class Contracts: pass
 
 def floatToWei(amount):
     return Wei(amount * 1e18)
 
-def logGlobalState(contracts):
+def logGlobalState(contracts, message=""):
     print('\n ---- Global state ----')
+    if message != "":
+        print(message)
     print('Num troves      ', contracts.sortedTroves.getSize())
     activePoolColl = contracts.activePool.getETH()
     activePoolDebt = contracts.activePool.getLUSDDebt()
@@ -32,3 +40,141 @@ def logGlobalState(contracts):
     #print('Last trove      ', last_trove)
     print('Last trove’s ICR', last_ICR.to("ether"))
     print(' ----------------------\n')
+
+def setAddresses(contracts):
+    contracts.sortedTroves.setParams(
+        MAX_BYTES_32,
+        contracts.troveManager.address,
+        contracts.borrowerOperations.address,
+        { 'from': accounts[0] }
+    )
+
+    contracts.troveManager.setAddresses(
+        contracts.borrowerOperations.address,
+        contracts.activePool.address,
+        contracts.defaultPool.address,
+        contracts.stabilityPool.address,
+        contracts.gasPool.address,
+        contracts.collSurplusPool.address,
+        contracts.priceFeedTestnet.address,
+        contracts.lusdToken.address,
+        contracts.sortedTroves.address,
+        contracts.lqtyToken.address,
+        contracts.lqtyStaking.address,
+        { 'from': accounts[0] }
+    )
+
+    contracts.borrowerOperations.setAddresses(
+        contracts.troveManager.address,
+        contracts.activePool.address,
+        contracts.defaultPool.address,
+        contracts.stabilityPool.address,
+        contracts.gasPool.address,
+        contracts.collSurplusPool.address,
+        contracts.priceFeedTestnet.address,
+        contracts.sortedTroves.address,
+        contracts.lusdToken.address,
+        contracts.lqtyStaking.address,
+        { 'from': accounts[0] }
+    )
+
+    contracts.stabilityPool.setAddresses(
+        contracts.borrowerOperations.address,
+        contracts.troveManager.address,
+        contracts.activePool.address,
+        contracts.lusdToken.address,
+        contracts.sortedTroves.address,
+        contracts.priceFeedTestnet.address,
+        contracts.communityIssuance.address,
+        { 'from': accounts[0] }
+    )
+
+    contracts.activePool.setAddresses(
+        contracts.borrowerOperations.address,
+        contracts.troveManager.address,
+        contracts.stabilityPool.address,
+        contracts.defaultPool.address,
+        { 'from': accounts[0] }
+    )
+
+    contracts.defaultPool.setAddresses(
+        contracts.troveManager.address,
+        contracts.activePool.address,
+        { 'from': accounts[0] }
+    )
+
+    contracts.collSurplusPool.setAddresses(
+        contracts.borrowerOperations.address,
+        contracts.troveManager.address,
+        contracts.activePool.address,
+        { 'from': accounts[0] }
+    )
+
+    contracts.hintHelpers.setAddresses(
+        contracts.sortedTroves.address,
+        contracts.troveManager.address,
+        { 'from': accounts[0] }
+    )
+
+    # LQTY
+    contracts.lqtyStaking.setAddresses(
+        contracts.lqtyToken.address,
+        contracts.lusdToken.address,
+        contracts.troveManager.address,
+        contracts.borrowerOperations.address,
+        contracts.activePool.address,
+        { 'from': accounts[0] }
+    )
+
+    contracts.communityIssuance.setAddresses(
+        contracts.lqtyToken.address,
+        contracts.stabilityPool.address,
+        { 'from': accounts[0] }
+    )
+
+def deploy_contracts():
+    contracts = Contracts()
+
+    contracts.priceFeedTestnet = PriceFeedTestnet.deploy({ 'from': accounts[0] })
+    contracts.sortedTroves = SortedTroves.deploy({ 'from': accounts[0] })
+    #contracts.troveManager = TroveManager.deploy({ 'from': accounts[0] })
+    contracts.troveManager = TroveManagerNoBootstrap.deploy({ 'from': accounts[0] })
+    contracts.activePool = ActivePool.deploy({ 'from': accounts[0] })
+    contracts.stabilityPool = StabilityPool.deploy({ 'from': accounts[0] })
+    contracts.gasPool = GasPool.deploy({ 'from': accounts[0] })
+    contracts.defaultPool = DefaultPool.deploy({ 'from': accounts[0] })
+    contracts.collSurplusPool = CollSurplusPool.deploy({ 'from': accounts[0] })
+    contracts.borrowerOperations = BorrowerOperations.deploy({ 'from': accounts[0] })
+    contracts.hintHelpers = HintHelpers.deploy({ 'from': accounts[0] })
+    contracts.lusdToken = LUSDToken.deploy(
+        contracts.troveManager.address,
+        contracts.stabilityPool.address,
+        contracts.borrowerOperations.address,
+        { 'from': accounts[0] }
+    )
+    # LQTY
+    contracts.lqtyStaking = LQTYStaking.deploy({ 'from': accounts[0] })
+    contracts.communityIssuance = CommunityIssuance.deploy({ 'from': accounts[0] })
+    contracts.lockupContractFactory = LockupContractFactory.deploy({ 'from': accounts[0] })
+    contracts.lqtyToken = LQTYToken.deploy(
+        contracts.communityIssuance.address,
+        contracts.lqtyStaking.address,
+        contracts.lockupContractFactory.address,
+        accounts[1], # bountyAddress
+        accounts[1],  # lpRewardsAddress
+        { 'from': accounts[0] }
+    )
+
+    setAddresses(contracts)
+
+    return contracts
+
+@pytest.fixture
+@pytest.mark.require_network("openethereum")
+def add_accounts(scope="module"):
+    import_accounts(accounts)
+    """
+    if network.show_active() != 'development':
+        print("Importing accounts...")
+        import_accounts(accounts)
+    """