name: Go
on: [push, pull_request]
jobs:
  test:
    name: Test
    strategy:
      matrix:
        os: [ "ubuntu-latest", "macos-latest" ]
        go-version: [ "1.13", "1.14", "1.15" ]
    runs-on: ${{ matrix.os }}
    steps:
    - name: setup Go ${{ matrix.go-version }}
      uses: actions/setup-go@v2
      with:
        go-version: ${{ matrix.go-version }}
    - name: checkout
      uses: actions/checkout@v2
    - uses: actions/cache@v2
      with:
        path: |
          ~/go/pkg/mod
          ~/.cache/go-build
          ~/Library/Caches/go-build
          '%LocalAppData%\go-build'
      key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
      restore-keys: |
        ${{ runner.os }}-go-
    - name: simple test
      run: go test -v ./ -count=1
    - name: test with GC pressure
      run: go test -v ./ -count=1
      env:
        GOGC: 1
    - name: test with race detector
      run: go test -v -race ./ -count=1
  coverage:
    name: Coverage
    runs-on: ubuntu-latest
    steps:
      - name: setup Go
        uses: actions/setup-go@v2
        with:
          go-version: 1.15
      - name: checkout
        uses: actions/checkout@v2
      - name: measure coverage
        run: go test -v -coverprofile=coverage.out ./ -count=1
      - name: report coverage
        run: |
          bash <(curl -s https://codecov.io/bash)