on:
  push:
  pull_request:

name: run-tests

jobs:
  run-tests:
    runs-on: ${{ matrix.config.os }}

    name: ${{ matrix.config.os }} (${{ matrix.config.r }})

    strategy:
      fail-fast: false
      matrix:
        config:
          - {os: windows-latest, r: 'release'}
          - {os: macOS-latest, r: 'release'}
          - {os: ubuntu-16.04, r: 'release', rspm: "https://packagemanager.rstudio.com/cran/__linux__/xenial/latest"}

    env:
      R_REMOTES_NO_ERRORS_FROM_WARNINGS: true
      RSPM: ${{ matrix.config.rspm }}

    steps:
      # do not convert line feeds in windows
      - name: Windows git setup
        if: runner.os == 'Windows'
        run:
          git config --global core.autocrlf false

      - uses: actions/checkout@v2

      - uses: r-lib/actions/setup-r@master
        with:
          r-version: ${{ matrix.config.r }}

      - uses: r-lib/actions/setup-pandoc@master

      - name: Query dependencies
        run: |
          install.packages('remotes')
          saveRDS(remotes::dev_package_deps(dependencies = TRUE), ".github/depends.Rds", version = 2)
          writeLines(sprintf("R-%i.%i", getRversion()$major, getRversion()$minor), ".github/R-version")
        shell: Rscript {0}

      - name: Cache R packages
        if: runner.os != 'Windows'
        uses: actions/cache@v1
        with:
          path: ${{ env.R_LIBS_USER }}
          key: ${{ runner.os }}-${{ hashFiles('.github/R-version') }}-1-${{ hashFiles('.github/depends.Rds') }}
          restore-keys: ${{ runner.os }}-${{ hashFiles('.github/R-version') }}-1-

      - name: Install system dependencies
        if: runner.os == 'Linux'
        env:
          RHUB_PLATFORM: linux-x86_64-ubuntu-gcc
        run: |
          Rscript -e "remotes::install_github('r-hub/sysreqs')"
          sysreqs=$(Rscript -e "cat(sysreqs::sysreq_commands('DESCRIPTION'))")
          sudo -s eval "$sysreqs"

      - name: Install dependencies
        run: |
          remotes::install_deps(dependencies = TRUE)
        shell: Rscript {0}

      - name: Find PhantomJS path
        id: phantomjs
        run: |
          echo "::set-output name=path::$(Rscript -e 'cat(shinytest:::phantom_paths()[[1]])')"
      - name: Cache PhantomJS
        uses: actions/cache@v1
        with:
          path: ${{ steps.phantomjs.outputs.path }}
          key: ${{ runner.os }}-phantomjs
          restore-keys: ${{ runner.os }}-phantomjs
      - name: Install PhantomJS
        shell: Rscript {0}
        run: |
          options(install.packages.check.source = "no")
          if (!shinytest::dependenciesInstalled()) shinytest::installDependencies()

      - name: Run tests
        shell: Rscript {0}
        run: |
          shiny::runTests(".", assert = TRUE)

      - name: Upload test results
        if: failure()
        uses: actions/upload-artifact@master
        with:
          name: ${{ runner.os }}-r${{ matrix.config.r }}-tests
          path: tests