Merge branch 'master' of github.com:rhlsthrm/typescript-solidity-dev-…

…starter-kit

README.md

@@ -55,8 +55,8 @@ Create/modify network config in `hardhat.config.ts` and add API key and private
 
 ### Verify on Etherscan
 
-Add Etherscan API key to `hardhat.config.ts`, then run:
+Using the [hardhat-etherscan plugin](https://hardhat.org/plugins/nomiclabs-hardhat-etherscan.html), add Etherscan API key to `hardhat.config.ts`, then run:
 
-`npx hardhat verify-contract --contract-name Counter --address <DEPLOYED ADDRESS>`
+`npx hardhat verify --network rinkeby <DEPLOYED ADDRESS>`
 
 PRs and feedback welcome!

package.json

@@ -30,6 +30,7 @@
     "@types/mocha": "^8.2.1",
     "@types/node": "^14.14.32",
     "chai": "^4.3.3",
+    "chai-as-promised": "^7.1.1",
     "dotenv": "^8.2.0",
     "ethereum-waffle": "^3.3.0",
     "ethers": "^5.0.31",

test/counter.ts

@@ -1,9 +1,11 @@
 import { ethers } from "hardhat";
 import chai from "chai";
+import chaiAsPromised from "chai-as-promised";
 import { solidity } from "ethereum-waffle";
 import { Counter__factory, Counter } from "../typechain";
 
 chai.use(solidity);
+chai.use(chaiAsPromised);
 const { expect } = chai;
 
 describe("Counter", () => {
@@ -38,9 +40,8 @@ describe("Counter", () => {
 
   describe("count down", async () => {
     // 5
-    it("should fail", async () => {
-      // this test will fail
-      await counter.countDown();
+    it("should fail due to underflow exception", () => {
+      return expect(counter.countDown()).to.eventually.be.rejectedWith(Error, 'Uint256 underflow');
     });
 
     it("should count down", async () => {