fork tests in CI

.env.example

@@ -0,0 +1,3 @@
+NOVA_URL=
+ARB_URL=
+ETH_URL=

test/gov-actions/AIPNovaFeeRoutingAction.t.sol

@@ -11,11 +11,11 @@ import "../../src/UpgradeExecutor.sol";
 contract AIPNovaFeeRoutingActionTest is Test {
     UpgradeExecutor constant upExec = UpgradeExecutor(0x86a02dD71363c440b21F4c0E5B2Ad01Ffe1A7482);
 
-    function testAction() public {
-        if (!isFork()) {
-            return;
-        }
+    function setUp() public {
+        vm.createSelectFork(vm.envString("NOVA_URL"), 74298960);
+    }
 
+    function testAction() public {
         AIPNovaFeeRoutingAction action = new AIPNovaFeeRoutingAction();
 
         // before we run the action, we need to make sure the upgrade executor has at least this much ETH
@@ -26,7 +26,7 @@ contract AIPNovaFeeRoutingActionTest is Test {
 
         // make sure the new recipients are set
 
-        address[1] memory expectedL1SurplusRecipients = [0xd9a2e0E5d7509F0BF1B2d33884F8C1b4D4490879];
+        address[1] memory expectedL1SurplusRecipients = [0x36D0170D92F66e8949eB276C3AC4FEA64f83704d];
         uint256[1] memory expectedL1SurplusWeights = [uint(10_000)];
 
         assertEq(IRewardDistributor(action.novaL1SurplusFeeDistr()).currentRecipientGroup(), keccak256(abi.encodePacked(expectedL1SurplusRecipients)));
@@ -36,7 +36,7 @@ contract AIPNovaFeeRoutingActionTest is Test {
 
 
         address[7] memory expectedBaseFeeRecipients = [
-            0xd9a2e0E5d7509F0BF1B2d33884F8C1b4D4490879, // nova to l1 router
+            0x36D0170D92F66e8949eB276C3AC4FEA64f83704d, // nova to l1 router
             0xD0749b3e537Ed52DE4e6a3Ae1eB6fc26059d0895, // rest are same as current
             0x41C327d5fc9e29680CcD45e5E52446E0DB3DAdFd,
             0x02C2599aa929e2509741b44F3a13029745aB1AB2,

test/gov-actions/NomineeGovernorV2UpgradeAction.t.sol

@@ -16,23 +16,16 @@ contract NomineeGovernorV2UpgradeActionTest is Test {
     // see https://github.com/ArbitrumFoundation/docs/pull/731/commits/0837520dccc12e56a25f62de90ff9e3869196d05
     bytes32 newConstitutionHash = 0xe794b7d0466ffd4a33321ea14c307b2de987c3229cf858727052a6f4b8a19cc1;
 
-    address newImplementation = address(new SecurityCouncilNomineeElectionGovernor());
-    uint256 votingDelay = 7 days;
-    NomineeGovernorV2UpgradeActionTemplate action = new NomineeGovernorV2UpgradeActionTemplate(
-        address(proxyAdmin),
-        address(gov),
-        newImplementation,
-        votingDelay,
-        address(constitution),
-        newConstitutionHash
-    );
+    uint256 votingDelay = 50400;
+    NomineeGovernorV2UpgradeAction action;
 
-    function testAction() external {
-        if (!_isForkTest()) {
-            console.log("not fork test, skipping NomineeGovernorV2UpgradeActionTest");
-            return;
-        }
+    function setUp() external {
+        vm.createSelectFork(vm.envString("ARB_URL"), 173727923);
+
+        action = new NomineeGovernorV2UpgradeAction();
+    }
 
+    function testAction() external {
         if (_getImplementation() != oldImplementation) {
             console.log("implementation not set to old implementation, skipping NomineeGovernorV2UpgradeActionTest");
             return;
@@ -49,7 +42,7 @@ contract NomineeGovernorV2UpgradeActionTest is Test {
 
         assertEq(
             _getImplementation(),
-            newImplementation,
+            action.newNomineeElectionGovernorImplementation(),
             "implementation not set"
         );
 
@@ -63,13 +56,4 @@ contract NomineeGovernorV2UpgradeActionTest is Test {
     function _getImplementation() internal view returns (address) {
         return proxyAdmin.getProxyImplementation(TransparentUpgradeableProxy(payable(gov)));
     }
-
-    function _isForkTest() internal view returns (bool) {
-        bool isForkTest;
-        address _gov = address(gov);
-        assembly {
-            isForkTest := gt(extcodesize(_gov), 0)
-        }
-        return isForkTest;
-    }
 }

test/gov-actions/SwitchManagerRolesAction.t.sol

@@ -8,12 +8,11 @@ import "../../src/gov-action-contracts/nonemergency/SwitchManagerRolesAction.sol
 contract SwitchManagerRolesActionTest is Test {
     UpgradeExecutor arbOneUe = UpgradeExecutor(0xCF57572261c7c2BCF21ffD220ea7d1a27D40A827);
 
-    function testAction() external {
-        if (!isFork()) {
-            console.log("not fork test, skipping SwitchManagerRolesActionTest");
-            return;
-        }
+    function setUp() external {
+        vm.createSelectFork(vm.envString("ARB_URL"), 221131972);
+    }
 
+    function testAction() external {
         SwitchManagerRolesAction gac = new SwitchManagerRolesAction();
 
         address emergencyCouncil = gac.emergencyCouncil();