commit

lib/forge-std/test/StdConstants.t.sol

@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: MIT
+pragma solidity >=0.7.0 <0.9.0;
+
+import {StdConstants} from "../src/StdConstants.sol";
+import {Test} from "../src/Test.sol";
+
+contract StdConstantsTest is Test {
+    function testVm() public view {
+        assertEq(StdConstants.VM.getBlockNumber(), 1);
+    }
+
+    function testVmDerivation() public pure {
+        assertEq(address(StdConstants.VM), address(uint160(uint256(keccak256("hevm cheat code")))));
+    }
+
+    function testConsoleDerivation() public pure {
+        assertEq(StdConstants.CONSOLE, address(uint160(uint88(bytes11("console.log")))));
+    }
+
+    function testDefaultSender() public view {
+        assertEq(StdConstants.DEFAULT_SENDER, msg.sender);
+    }
+
+    function testDefaultSenderDerivation() public pure {
+        assertEq(StdConstants.DEFAULT_SENDER, address(uint160(uint256(keccak256("foundry default caller")))));
+    }
+
+    function testDefaultTestContract() public {
+        assertEq(StdConstants.DEFAULT_TEST_CONTRACT, address(new Dummy()));
+    }
+
+    function testDefaultTestContractDerivation() public view {
+        assertEq(address(this), StdConstants.VM.computeCreateAddress(StdConstants.DEFAULT_SENDER, 1));
+        assertEq(StdConstants.DEFAULT_TEST_CONTRACT, StdConstants.VM.computeCreateAddress(address(this), 1));
+    }
+}
+
+contract Dummy {}