trigger:
  - 'master'
  - '*.x'

jobs:
  - job: Tests
    variables:
      vmImage: 'ubuntu-latest'
      python.version: '3.8'
      TOXENV: 'py,coverage-ci'
      hasTestResults: 'true'

    strategy:
      matrix:
        Python 3.8 Linux:
          vmImage: 'ubuntu-latest'
        Python 3.8 Windows:
          vmImage: 'windows-latest'
        Python 3.8 Mac:
          vmImage: 'macos-latest'
        PyPy 3 Linux:
          python.version: 'pypy3'
        Python 3.7 Linux:
          python.version: '3.7'
        Python 3.6 Linux:
          python.version: '3.6'
        Python 3.5 Linux:
          python.version: '3.5'
        Python 2.7 Linux:
          python.version: '2.7'
        Python 2.7 Windows:
          python.version: '2.7'
          vmImage: 'windows-latest'
        Docs:
          TOXENV: 'docs'
          hasTestResults: 'false'
        Style:
          TOXENV: 'style'
          hasTestResults: 'false'
        VersionRange:
          TOXENV: 'devel,lowest,coverage-ci'

    pool:
      vmImage: $[ variables.vmImage ]

    steps:
      - task: UsePythonVersion@0
        inputs:
          versionSpec: $(python.version)
        displayName: Use Python $(python.version)

      - script: pip --disable-pip-version-check install -U tox
        displayName: Install tox

      - script: tox -s false -- --junitxml=test-results.xml tests examples
        displayName: Run tox

      - task: PublishTestResults@2
        inputs:
          testResultsFiles: test-results.xml
          testRunTitle: $(Agent.JobName)
        condition: eq(variables['hasTestResults'], 'true')
        displayName: Publish test results

      - task: PublishCodeCoverageResults@1
        inputs:
          codeCoverageTool: Cobertura
          summaryFileLocation: coverage.xml
        condition: eq(variables['hasTestResults'], 'true')
        displayName: Publish coverage results

  # Test on the nightly version of Python.
  # Use a container since Azure Pipelines may not have the latest build.
  - job: FlaskOnNightly
    pool:
      vmImage: ubuntu-latest
    container: python:rc-stretch
    steps:
      - script: |
          echo "##vso[task.prependPath]$HOME/.local/bin"
          pip --disable-pip-version-check install --user -U tox
        displayName: Install tox

      - script: tox -e nightly
        displayName: Run tox