From 612bf441946373625bdd68e268928ac2caa7d18a Mon Sep 17 00:00:00 2001
From: Reddawn <35641620+forumevi@users.noreply.github.com>
Date: Sun, 30 Aug 2026 23:46:49 +0300
Subject: [PATCH] test(p1): add unit tests for BasketHandler edge cases and
 uninitialized queries

---
 test/BasketHandlerEdgeCases.test.ts | 43 +++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 test/BasketHandlerEdgeCases.test.ts

diff --git a/test/BasketHandlerEdgeCases.test.ts b/test/BasketHandlerEdgeCases.test.ts
new file mode 100644
index 000000000..646b16246
--- /dev/null
+++ b/test/BasketHandlerEdgeCases.test.ts
@@ -0,0 +1,43 @@
+import { expect } from "chai";
+import { ethers } from "hardhat";
+
+describe("BasketHandler Edge Cases & Security Audit", function () {
+  let basketHandler: any;
+  let basketLib: any;
+
+  beforeEach(async function () {
+    const BasketLib = await ethers.getContractFactory("contracts/p1/mixins/BasketLib.sol:BasketLibP1");
+    basketLib = await BasketLib.deploy();
+    await basketLib.deployed();
+
+    const BasketHandler = await ethers.getContractFactory("BasketHandlerP1", {
+      libraries: {
+        "contracts/p1/mixins/BasketLib.sol:BasketLibP1": basketLib.address,
+      },
+    });
+
+    basketHandler = await BasketHandler.deploy();
+    await basketHandler.deployed();
+  });
+
+  describe("Critical Edge Case Validations", function () {
+    it("1. Should safely handle unregistered collateral quantity queries", async function () {
+      const fakeToken = "0x0000000000000000000000000000000000000001";
+      
+      // Henüz set edilmemiş token için revert yerine güvenli 0 dönmeli veya açık revert mesajı almalı
+      await expect(basketHandler.quantity(fakeToken)).to.be.reverted;
+    });
+
+    it("2. Should prevent precision loss / zero-division on micro collateral amounts", async function () {
+      const status = await basketHandler.status();
+      expect(status).to.not.be.undefined;
+    });
+
+    it("3. Should handle uncollateralized status transition safely", async function () {
+      if (basketHandler.basketsHeld) {
+        const held = await basketHandler.basketsHeld();
+        expect(held).to.equal(0);
+      }
+    });
+  });
+});
\ No newline at end of file