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

name: tests

jobs:
  test:
    strategy:
      matrix:
        go-version: [1.x, 1.15.x]
        platform: [ubuntu-latest]
        include:
          # only update test coverage stats with most recent go version on linux
          - go-version: 1.x
            platform: ubuntu-latest
            update-coverage: true
    runs-on: ${{ matrix.platform }}

    steps:
    - name: Cancel previous workflow runs
      uses: styfle/cancel-workflow-action@0.8.0
      with:
        access_token: ${{ github.token }}

    - uses: actions/checkout@v2
    - uses: actions/setup-go@v2
      with:
        go-version: ${{ matrix.go-version }}
    - run: go version

    - name: Cache go modules
      uses: actions/cache@v2
      with:
        path: ~/go/pkg/mod
        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
        restore-keys: ${{ runner.os }}-go-

    - name: Run go test
      run: go test -v -race -coverprofile coverage.txt -covermode atomic ./...

    - name: Upload coverage to Codecov
      if: ${{ matrix.update-coverage }}
      uses: codecov/codecov-action@v1