Create NexusContract.test.js

pi-nexus-blockchain/tests/integration/NexusContract.test.js

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+import { NexusContract } from '../../src/contracts/NexusContract';
+import Web3 from 'web3';
+import { expect } from 'chai';
+
+describe('NexusContract', () => {
+  let web3;
+  let nexusContract;
+
+  beforeEach(async () => {
+    web3 = new Web3(new Web3.providers.HttpProvider('https://mainnet.infura.io/v3/YOUR_PROJECT_ID'));
+    nexusContract = new NexusContract(web3);
+  });
+
+  it('should deploy contract', async () => {
+    const txCount = await web3.eth.getTransactionCount();
+    const deployTx = await nexusContract.deploy();
+    expect(deployTx.transactionHash).to.exist;
+    expect(txCount + 1).to.equal(await web3.eth.getTransactionCount());
+  });
+
+  it('should mint tokens', async () => {
+    const address = '0x1234567890abcdef';
+    const amount = 100;
+    const mintTx = await nexusContract.mint(address, amount);
+    expect(mintTx.transactionHash).to.exist;
+    const balance = await nexusContract.balanceOf(address);
+    expect(balance).to.equal(amount);
+  });
+
+  it('should transfer tokens', async () => {
+    const fromAddress = '0x1234567890abcdef';
+    const toAddress = '0xabcdef1234567890';
+    const amount = 50;
+    const transferTx = await nexusContract.transfer(fromAddress, toAddress, amount);
+    expect(transferTx.transactionHash).to.exist;
+    const fromBalance = await nexusContract.balanceOf(fromAddress);
+    expect(fromBalance).to.equal(50);
+    const toBalance = await nexusContract.balanceOf(toAddress);
+    expect(toBalance).to.equal(amount);
+  });
+});