name: build

on:
  - push
  - pull_request

jobs:
  tests:
    name: Tests
    strategy:
      fail-fast: false
      matrix:
        os:
          - ubuntu-latest
        ocaml-version:
          - 4.08.1
          - 4.09.1
          - 4.11.2
          - 4.13.1
          - 4.14.0

    runs-on: ${{ matrix.os }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Use OCaml ${{ matrix.ocaml-version }}
        uses: ocaml/setup-ocaml@v2
        with:
          ocaml-compiler: ${{ matrix.ocaml-version }}

      - name: Deps
        run: opam install -t --deps-only .

      - name: Build
        run: opam exec -- dune build

      - name: Test
        run: opam exec -- dune runtest