.eslintrc.json

@@ -5,7 +5,7 @@
         "node": true
     },
     "parserOptions": {
-        "ecmaVersion": 6
+        "ecmaVersion": 8
     },
     "rules": {
         "block-spacing": "error",
@@ -18,6 +18,10 @@
         "quotes": ["error", "single"],
         "semi": "error",
         "space-before-blocks": "error",
-        "space-before-function-paren": ["error", "never"]
+        "space-before-function-paren": ["error", {
+            "anonymous": "never",
+            "named": "never",
+            "asyncArrow": "always"
+        }]
     }
 }

.github/workflows/test.yml

@@ -0,0 +1,56 @@
+name: Tests
+on: [push, pull_request]
+env:
+  CI: true
+
+jobs:
+  run:
+    name: Node ${{ matrix.node }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        node: [12, 14, 15]
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+
+    steps:
+      - name: Clone repository
+        uses: actions/checkout@v1
+
+      - name: Set Node.js version
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node }}
+
+      - run: node --version
+      - run: npm --version
+
+      - name: Install npm dependencies
+        run: npm ci
+
+      - name: Run tests
+        run: npm test
+        shell: bash
+        env:
+          SHELL: "/bin/bash"
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Submit coverage
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.github_token }}
+          flag-name: Node.js ${{ matrix.node }}
+          parallel: true
+  teardown:
+    needs: run
+    name: Submitting coverage
+    runs-on: ubuntu-latest
+    steps:
+      - name: Coveralls Finished
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.github_token }}
+          parallel-finished: true

.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+    "eslint.enable": true,
+    "jest.autoEnable": true,
+    "jest.showCoverageOnLoad": true,
+    "editor.rulers": [100]
+}

CONTRIBUTING.md

@@ -6,21 +6,16 @@ updated.
 
 **Pull requests:** You don't need to bump version numbers or modify anything related to releasing. That stuff is fully automated, just write the functionality.
 
-
 # Maintaining
 
 ## Test
 
 Tests can be run with command:
 
 ```bash
-mocha
+npm test
 ```
 
-You need to have *mocha* installed globally with `npm install -g mocha`.
-
 ## Release
 
-* Commit all changes
-* Run `./node_modules/.bin/releasor --bump minor`, which will create new tag and publish code to GitHub and npm. See https://github.com/kimmobrunfeldt/releasor for options
-* Edit GitHub release notes
+Use [np](https://www.npmjs.com/package/np) to create a new release