From 9b25c1fe46e6fa2595e0e370938828c2ec08f66d Mon Sep 17 00:00:00 2001
From: Diego <diegoferrersan@gmail.com>
Date: Tue, 28 May 2024 16:11:25 -0400
Subject: [PATCH] Create PendingBlkTimeAndNrAdvanceCheck.sol

---
 src/mocks/PendingBlkTimeAndNrAdvanceCheck.sol | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 src/mocks/PendingBlkTimeAndNrAdvanceCheck.sol

diff --git a/src/mocks/PendingBlkTimeAndNrAdvanceCheck.sol b/src/mocks/PendingBlkTimeAndNrAdvanceCheck.sol
new file mode 100644
index 000000000..0676845a3
--- /dev/null
+++ b/src/mocks/PendingBlkTimeAndNrAdvanceCheck.sol
@@ -0,0 +1,29 @@
+// Copyright 2021-2022, Offchain Labs, Inc.
+// For license information, see https://github.com/OffchainLabs/nitro-contracts/blob/main/LICENSE
+// SPDX-License-Identifier: BUSL-1.1
+
+pragma solidity ^0.8.0;
+
+import "../precompiles/ArbSys.sol";
+
+contract PendingBlkTimeAndNrAdvanceCheck {
+    uint256 immutable deployedAt;
+    uint256 immutable deployedAtBlock;
+    ArbSys constant ARB_SYS = ArbSys(address(100));
+
+    constructor() {
+        deployedAt = block.timestamp;
+        deployedAtBlock = ARB_SYS.arbBlockNumber();
+    }
+
+    function isAdvancing() external {
+        require(block.timestamp > deployedAt, "Time didn't advance");
+        require(ARB_SYS.arbBlockNumber() > deployedAtBlock, "Block didn't advance");
+    }
+
+    function checkArbBlockHashReturnsLatest(bytes32 expected) external {
+        bytes32 gotBlockHash = ARB_SYS.arbBlockHash(ARB_SYS.arbBlockNumber() - 1);
+        require(gotBlockHash != bytes32(0), "ZERO_BLOCK_HASH");
+        require(gotBlockHash == expected, "WRONG_BLOCK_HASH");
+    }
+}