name: go

on:
  push:
    branches:
      - master
    tags:
  pull_request:

jobs:
  tests:
    runs-on: ${{ matrix.platform }}
    name: Unit tests on Go ${{ matrix.go }} / ${{ matrix.platform }}
    strategy:
      fail-fast: false
      matrix:
        go: [ '1.18.x', '1.19.x', '1.20.x' ]
        platform: [ubuntu-latest, macos-latest]
    steps:
      - name: Checkout code into the Go module directory.
        uses: actions/checkout@v2

      - name: Install Go
        uses: actions/setup-go@v2
        with:
          go-version: ${{ matrix.go }}

      - uses: actions/cache@v1
        with:
          path: ~/go/pkg/mod
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}

      - name: Run unit tests.
        run: make test