From 98635ad21d4b95d2aa9c73485c57b2fdfdba1522 Mon Sep 17 00:00:00 2001
From: Rubilmax <rmilon@gmail.com>
Date: Thu, 5 Oct 2023 09:47:20 +0200
Subject: [PATCH 1/2] test(erc4626): add ERC4626 a16z tests

---
 .gitmodules                     |  3 +++
 lib/erc4626-tests               |  1 +
 src/mocks/ERC20Mock.sol         |  8 ++++++++
 test/forge/ERC4626Test-a16z.sol | 18 ++++++++++++++++++
 4 files changed, 30 insertions(+)
 create mode 160000 lib/erc4626-tests
 create mode 100644 test/forge/ERC4626Test-a16z.sol

diff --git a/.gitmodules b/.gitmodules
index 00b468f2..ebb7eee5 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -14,3 +14,6 @@
 [submodule "lib/morpho-blue-irm"]
 	path = lib/morpho-blue-irm
 	url = https://github.com/morpho-labs/morpho-blue-irm
+[submodule "lib/erc4626-tests"]
+	path = lib/erc4626-tests
+	url = https://github.com/a16z/erc4626-tests
diff --git a/lib/erc4626-tests b/lib/erc4626-tests
new file mode 160000
index 00000000..8b1d7c2a
--- /dev/null
+++ b/lib/erc4626-tests
@@ -0,0 +1 @@
+Subproject commit 8b1d7c2ac248c33c3506b1bff8321758943c5e11
diff --git a/src/mocks/ERC20Mock.sol b/src/mocks/ERC20Mock.sol
index a580886c..b5165ff9 100644
--- a/src/mocks/ERC20Mock.sol
+++ b/src/mocks/ERC20Mock.sol
@@ -6,6 +6,14 @@ import {ERC20} from "@openzeppelin/token/ERC20/ERC20.sol";
 contract ERC20Mock is ERC20 {
     constructor(string memory _name, string memory _symbol) ERC20(_name, _symbol) {}
 
+    function mint(address account, uint256 amount) external {
+        _mint(account, amount);
+    }
+
+    function burn(address account, uint256 amount) external {
+        _burn(account, amount);
+    }
+
     function setBalance(address account, uint256 amount) external {
         _burn(account, balanceOf(account));
         _mint(account, amount);
diff --git a/test/forge/ERC4626Test-a16z.sol b/test/forge/ERC4626Test-a16z.sol
new file mode 100644
index 00000000..ba58c4fb
--- /dev/null
+++ b/test/forge/ERC4626Test-a16z.sol
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+pragma solidity ^0.8.0;
+
+import "erc4626-tests/ERC4626.test.sol";
+
+import {BaseTest} from "./helpers/BaseTest.sol";
+
+contract ERC4626StdTest is BaseTest, ERC4626Test {
+    function setUp() public override(BaseTest, ERC4626Test) {
+        super.setUp();
+
+        _underlying_ = address(loanToken);
+        _vault_ = address(vault);
+        _delta_ = 0;
+        _vaultMayBeEmpty = true;
+        _unlimitedAmount = true;
+    }
+}

From 56e84120aa727445c4a75bf7d46d352de7c2b0ef Mon Sep 17 00:00:00 2001
From: Rubilmax <rmilon@gmail.com>
Date: Thu, 5 Oct 2023 11:15:46 +0200
Subject: [PATCH 2/2] ci(test): decrease fuzz runs

---
 .github/workflows/foundry.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/foundry.yml b/.github/workflows/foundry.yml
index 741fee08..464d86aa 100644
--- a/.github/workflows/foundry.yml
+++ b/.github/workflows/foundry.yml
@@ -79,8 +79,8 @@ jobs:
         type: ["slow", "fast"]
         include:
           - type: "slow"
-            fuzz-runs: 100000
-            max-test-rejects: 500000
+            fuzz-runs: 32768
+            max-test-rejects: 1048576
             invariant-runs: 64
             invariant-depth: 1024
           - type: "fast"