Running test coverage and uploading to coveralls

.github/workflows/build.yml

@@ -1,13 +1,17 @@
 name: Build
-on: [push]
+on: [push, pull_request]
 jobs:
-  build:
-    runs-on: ubuntu-18.04
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
-        with:
-          node-version: '14'
-      - run: yarn install
-      - run: yarn prettier
-      - run: yarn test
+    build:
+        runs-on: ubuntu-20.04
+        steps:
+            - uses: actions/checkout@v2
+            - uses: actions/setup-node@v1
+              with:
+                  node-version: "16"
+            - run: yarn install
+            - run: yarn prettier
+            - run: yarn test:coverage
+            - name: Coveralls
+              uses: coverallsapp/github-action@master
+              with:
+                  github-token: ${{ secrets.GITHUB_TOKEN }}

.solcover.js

@@ -0,0 +1,3 @@
+module.exports = {
+    skipFiles: ["Instantiator.sol"],
+};

hardhat.config.ts

@@ -17,6 +17,7 @@ import "@nomiclabs/hardhat-waffle";
 import "@nomiclabs/hardhat-ethers";
 import "@typechain/hardhat";
 import "hardhat-deploy";
+import "solidity-coverage";
 
 // read MNEMONIC from file or from env variable
 let mnemonic = process.env.MNEMONIC;

package.json

@@ -24,7 +24,8 @@
         "prettier": "prettier --check src/**/*.ts test/**/*.ts contracts/**/*.sol",
         "solhint": "solhint contracts/**/*.sol",
         "start": "hardhat node",
-        "test": "hardhat test"
+        "test": "hardhat test",
+        "test:coverage": "hardhat coverage"
     },
     "scripts-info": {
         "build": "Build contracts and typescript code",
@@ -45,9 +46,9 @@
         "info": "Displays information about the scripts.",
         "prettier": "Check code style",
         "solhint": "Run solidity linter",
-        "test": "Run unit tests"
+        "test": "Run unit tests",
+        "test:coverage": "Run test coverage report"
     },
-    "dependencies": {},
     "devDependencies": {
         "@nomiclabs/hardhat-ethers": "^2.0.2",
         "@nomiclabs/hardhat-etherscan": "^2.1.6",
@@ -71,6 +72,7 @@
         "rimraf": "^3.0.2",
         "solhint": "^3.3.6",
         "solhint-plugin-prettier": "^0.0.5",
+        "solidity-coverage": "^0.7.17",
         "ts-generator": "^0.1.1",
         "ts-node": "^10.2.1",
         "typechain": "^5.1.2",