Create reserve.test.js

test/reserve.test.js

@@ -0,0 +1,50 @@
+const { expect } = require('chai');
+const { web3 } = require('@openzeppelin/test-helpers/src/setup');
+const { BN } = web3.utils;
+
+const Reserve = artifacts.require('Reserve');
+
+contract('Reserve', (accounts) => {
+  const [owner, user1, user2] = accounts;
+
+  beforeEach(async () => {
+    this.reserve = await Reserve.new({ from: owner });
+  });
+
+  describe('Initialization', () => {
+    it('should have an initial reserve ratio of 20%', async () => {
+      const reserveRatio = await this.reserve.reserveRatio();
+      expect(reserveRatio).to.be.bignumber.equal(new BN('200000000000000000', 10));
+    });
+  });
+
+  describe('Deposit', () => {
+    it('should allow the owner to deposit tokens into the reserve', async () => {
+      await this.reserve.deposit(new BN('100', 10), { from: owner });
+      const reserveBalance = await this.reserve.balance();
+      expect(reserveBalance).to.be.bignumber.equal(new BN('100', 10));
+    });
+
+    it('should not allow user1 to deposit tokens into the reserve', async () => {
+      await expectRevert(
+        this.reserve.deposit(new BN('100', 10), { from: user1 }),
+        'Only the owner can deposit tokens into the reserve'
+      );
+    });
+  });
+
+  describe('Withdrawal', () => {
+    it('should allow the owner to withdraw tokens from the reserve', async () => {
+      await this.reserve.withdraw(new BN('50', 10), { from: owner });
+      const reserveBalance = await this.reserve.balance();
+      expect(reserveBalance).to.be.bignumber.equal(new BN('50', 10));
+    });
+
+    it('should not allow user1 to withdraw tokens from the reserve', async () => {
+      await expectRevert(
+        this.reserve.withdraw(new BN('50', 10), { from: user1 }),
+        'Only the owner can withdraw tokens from the reserve'
+      );
+    });
+  });
+});