Create SupplyChain.test.js

blockchain_development_integration/pi_network/tests/SupplyChain.test.js

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+const { expect } = require("chai");
+const { ethers } = require("hardhat");
+
+describe("Supply Chain Contract", function () {
+    let SupplyChain, supplyChain, owner;
+
+    beforeEach(async function () {
+        [owner] = await ethers.getSigners();
+        SupplyChain = await ethers.getContractFactory("SupplyChain");
+        supplyChain = await SupplyChain.deploy();
+        await supplyChain.deployed();
+    });
+
+    it("should allow the owner to create a product", async function () {
+        await supplyChain.connect(owner).createProduct("Product A");
+        const product = await supplyChain.getProduct(1);
+        expect(product[0]).to.equal("Product A");
+        expect(product[1]).to.equal(owner.address);
+        expect(product[2]).to.equal("Created");
+    });
+
+    it("should allow the owner to transfer a product", async function () {
+        await supplyChain.connect(owner).createProduct("Product A");
+        const [_, newOwner] = await ethers.getSigners();
+        await supplyChain.connect(owner).transferProduct(1, newOwner.address);
+        const product = await supplyChain.getProduct(1);
+        expect(product[1]).to.equal(newOwner.address);
+        expect(product[2]).to.equal("Transferred");
+    });
+
+    it("should not allow a non-owner to transfer a product", async function () {
+        await supplyChain.connect(owner).createProduct("Product A");
+        const [_, nonOwner] = await ethers.getSigners();
+        await expect(supplyChain.connect(nonOwner).transferProduct(1, nonOwner.address)).to.be.revertedWith("Not the owner");
+    });
+});