name: tests

on:
  pull_request:
    types: [ opened, synchronize, reopened ]
  push:
    branches:
      - master

jobs:
  run_tests:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout the repository
        uses: actions/checkout@v2

      - name: Set up JDK 8
        uses: actions/setup-java@v1
        with:
          java-version: 8

      - name: Cache local Maven repository
        uses: actions/cache@v2
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-maven-

      # Downloading all the dependencies is very log spammy so we do this in its own step.
      # Also the cache is reused by the "release" workflow but the workflow here does not use all
      # dependencies so without the priming step the cache will be missing some things.
      - name: Prime Maven cache
        run: mvn --batch-mode dependency:go-offline
        
      - name: Run tests with Maven
        run: mvn -B test --file pom.xml