test: test for CODE mint role

packages/hardhat/test/CODE.test.ts

@@ -0,0 +1,44 @@
+import { expect } from './chai-setup';
+import { ethers, deployments, getNamedAccounts } from 'hardhat';
+import { CODE } from '../../next-app/src/typechain';
+
+const TOKEN_DECIMALS = 18;
+
+const setup = deployments.createFixture(async () => {
+  await deployments.fixture(['CODE']);
+
+  const CODE = <CODE>await ethers.getContract('CODE');
+
+  return {
+    CODE,
+  };
+});
+
+describe('CODE', function () {
+  it('Only mint role can mint new token', async function () {
+    const { CODE } = await setup();
+    const { treasury } = await getNamedAccounts();
+
+    const tc = await CODE.connect(await ethers.getSigner(treasury));
+    const mintRole = await CODE.MINTER_ROLE();
+    await expect(tc.mint(treasury, ethers.utils.parseUnits((100_000).toString(), TOKEN_DECIMALS))).to.be.revertedWith(
+      `AccessControl: account ${treasury.toLowerCase()} is missing role ${mintRole}`
+    );
+
+    const treasuryBalance = await CODE.balanceOf(treasury);
+    expect(treasuryBalance).to.equal(ethers.utils.parseUnits((6_500_000).toString(), TOKEN_DECIMALS));
+
+    await CODE.grantRole(mintRole, treasury);
+
+    await tc.mint(treasury, ethers.utils.parseUnits((100_000).toString(), TOKEN_DECIMALS));
+
+    const treasuryBalanceAfter = await CODE.balanceOf(treasury);
+    expect(treasuryBalanceAfter).to.equal(ethers.utils.parseUnits((6_600_000).toString(), TOKEN_DECIMALS));
+
+    await CODE.revokeRole(mintRole, treasury);
+
+    await expect(tc.mint(treasury, ethers.utils.parseUnits((100_000).toString(), TOKEN_DECIMALS))).to.be.revertedWith(
+      `AccessControl: account ${treasury.toLowerCase()} is missing role ${mintRole}`
+    );
+  });
+});