WIP truflation feed tests

config/truflationFeed.json

@@ -0,0 +1,7 @@
+{
+  "feedAddress": "0x1594F325afc4f8dc4E4ad0A3F758f48B1F72930a",
+  "heartbeat": 60,
+  "macroWindowThreshold": 1,
+  "microWindowThreshold": 1,
+  "targetValue": 5
+}

foundry.toml

@@ -10,6 +10,7 @@ test = "tests"
 script = "scripts"
 out = "forge-out"
 libs = ["lib"]
+fs_permissions = [{ access = "read", path = "./config"}]
 
 remappings = [
     "@openzeppelin/=lib/openzeppelin-contracts/",

tests/feeds/chainlink/TruflationFeed.t.sol

@@ -0,0 +1,58 @@
+pragma solidity 0.8.10;
+
+import "forge-std/StdJson.sol";
+import {Test, console2} from "forge-std/Test.sol";
+import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";
+
+contract TruflationFeedTest is Test {
+    using stdJson for string;
+
+    function append(string memory a, string memory b) internal pure returns (string memory) {
+        return string(abi.encodePacked(a, b));
+    }
+
+    struct JsonConfig {
+        address feedAddress;
+        uint256 heartbeat;
+        uint256 macroWindowTreshold;
+        uint256 microWindowTreshold;
+        uint256 targetValue;
+    }
+
+    string truflationRPC;
+    JsonConfig config;
+    AggregatorV3Interface feed;
+
+    function setUp() public {
+        truflationRPC = vm.envString("TRUFLATION_RPC");
+        vm.createSelectFork(truflationRPC, 43_948_853);
+
+        string memory root = vm.projectRoot();
+        string memory path = append(root, "/config/truflationFeed.json");
+        string memory json = vm.readFile(path);
+        bytes memory jsonBytes = json.parseRaw("");
+
+        config = abi.decode(jsonBytes, (JsonConfig));
+        feed = AggregatorV3Interface(config.feedAddress);
+    }
+
+    function test() public {
+        console2.log("Feed address: ", config.feedAddress);
+        console2.log("Heartbeat: ", config.heartbeat);
+        console2.log("Macro window treshold: ", config.macroWindowTreshold);
+        console2.log("Micro window treshold: ", config.microWindowTreshold);
+        console2.log("Target value: ", config.targetValue);
+    }
+
+    function testConsecutiveRoundId() public {
+        (uint80 roundId,,,,) = feed.latestRoundData();
+        console2.log("Latest round id: ", roundId);
+        console2.log("Current block number: ", block.number);
+
+        vm.createSelectFork(truflationRPC, block.number + (5 * 60 * 60));
+
+        (uint80 nextRoundId,,,,) = feed.latestRoundData();
+        console2.log("Next round id: ", nextRoundId);
+        console2.log("Current block number: ", block.number);
+    }
+}