ci(Github Actions) Add actions for unit tests and linting

.github/workflows/lint.yml

@@ -0,0 +1,25 @@
+name: "lint"
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    name: Lint codebase
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Setup node
+        uses: actions/setup-go@v1
+        with:
+          go-version: "1.13"
+      - run: go mod download
+      - run: go vet ./...
+      - run: make lint-prepare
+      - run: ./bin/golangci-lint run

.github/workflows/test.yml

@@ -0,0 +1,25 @@
+name: "test"
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version: [1.13.x]
+    name: Test with Go version ${{ matrix.go-version }}
+    steps:
+      - name: Setup go
+        uses: actions/setup-go@v1
+        with:
+          go-version: ${{ matrix.go-version }}
+      - name: Checkout
+        uses: actions/checkout@v2
+      - run: go test ./...

.gitignore

@@ -13,3 +13,4 @@
 
 # Dependency directories (remove the comment below to include it)
 # vendor/
+bin/

Makefile

@@ -0,0 +1,8 @@
+# Install tools for development
+.PHONY: init
+init: lint-prepare
+
+.PHONY: lint-prepare
+lint-prepare:
+	@echo "Preparing Linter"
+	curl -sfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s latest

README.md

@@ -1,2 +1,7 @@
 # is-thirteen
+
+[![go.dev reference](https://img.shields.io/badge/go.dev-reference-007d9c)](https://pkg.go.dev/github.com/stanleynguyen/is-thirteen)
+![](https://github.com/stanleynguyen/is-thirteen/workflows/test/badge.svg)
+![](https://github.com/stanleynguyen/is-thirteen/workflows/lint/badge.svg)
+
 Check if a number is equal to 13.