From 593e83a6ec00ff24924961502cbe7d509519b7dc Mon Sep 17 00:00:00 2001
From: steven nevins <steven.nevins.js@gmail.com>
Date: Fri, 15 Sep 2023 19:27:09 -0400
Subject: [PATCH] initial commit

---
 foundry.toml         |  1 -
 script/Counter.s.sol | 12 ------------
 src/Counter.sol      | 14 --------------
 test/Counter.t.sol   | 24 ------------------------
 test/Create2.t.sol   | 28 ++++++++++++++++++++++++++++
 5 files changed, 28 insertions(+), 51 deletions(-)
 delete mode 100644 script/Counter.s.sol
 delete mode 100644 src/Counter.sol
 delete mode 100644 test/Counter.t.sol
 create mode 100644 test/Create2.t.sol

diff --git a/foundry.toml b/foundry.toml
index 25b918f..49f9c28 100644
--- a/foundry.toml
+++ b/foundry.toml
@@ -1,5 +1,4 @@
 [profile.default]
-src = "src"
 out = "out"
 libs = ["lib"]
 
diff --git a/script/Counter.s.sol b/script/Counter.s.sol
deleted file mode 100644
index 1a47b40..0000000
--- a/script/Counter.s.sol
+++ /dev/null
@@ -1,12 +0,0 @@
-// SPDX-License-Identifier: UNLICENSED
-pragma solidity ^0.8.13;
-
-import {Script, console2} from "forge-std/Script.sol";
-
-contract CounterScript is Script {
-    function setUp() public {}
-
-    function run() public {
-        vm.broadcast();
-    }
-}
diff --git a/src/Counter.sol b/src/Counter.sol
deleted file mode 100644
index aded799..0000000
--- a/src/Counter.sol
+++ /dev/null
@@ -1,14 +0,0 @@
-// SPDX-License-Identifier: UNLICENSED
-pragma solidity ^0.8.13;
-
-contract Counter {
-    uint256 public number;
-
-    function setNumber(uint256 newNumber) public {
-        number = newNumber;
-    }
-
-    function increment() public {
-        number++;
-    }
-}
diff --git a/test/Counter.t.sol b/test/Counter.t.sol
deleted file mode 100644
index e9b9e6a..0000000
--- a/test/Counter.t.sol
+++ /dev/null
@@ -1,24 +0,0 @@
-// SPDX-License-Identifier: UNLICENSED
-pragma solidity ^0.8.13;
-
-import {Test, console2} from "forge-std/Test.sol";
-import {Counter} from "../src/Counter.sol";
-
-contract CounterTest is Test {
-    Counter public counter;
-
-    function setUp() public {
-        counter = new Counter();
-        counter.setNumber(0);
-    }
-
-    function test_Increment() public {
-        counter.increment();
-        assertEq(counter.number(), 1);
-    }
-
-    function testFuzz_SetNumber(uint256 x) public {
-        counter.setNumber(x);
-        assertEq(counter.number(), x);
-    }
-}
diff --git a/test/Create2.t.sol b/test/Create2.t.sol
new file mode 100644
index 0000000..ca55dab
--- /dev/null
+++ b/test/Create2.t.sol
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.13;
+
+import {Test} from "forge-std/Test.sol";
+
+contract Emitter {
+    event Ping();
+
+    function ping() external {
+        emit Ping();
+    }
+}
+
+contract Create2Test is Test {
+    function test_Create2() public {
+        bytes32 salt = bytes32(0);
+        bytes memory creationCode = type(Emitter).creationCode;
+        bytes memory initCode = bytes.concat(creationCode, abi.encode());
+        (bool success,) = CREATE2_FACTORY.call(bytes.concat(salt, initCode));
+        assertTrue(success);
+        address predictedTo = computeCreate2Address(salt, hashInitCode(creationCode));
+
+        (success,) = CREATE2_FACTORY.call(bytes.concat(salt, initCode));
+        assertFalse(success);
+
+        Emitter(predictedTo).ping();
+    }
+}