jobs:
- job: macOS
  pool:
    # NOTE: at time of writing, there is a danger
    # that using an invalid vmIMage string for macOS
    # image silently redirects to a Windows build on Azure;
    # for now, use the only image name officially present in
    # the docs even though i.e., numba uses another in their
    # azure config for mac os -- Microsoft has indicated
    # they will patch this issue
    vmIMage: macOS-10.13
  steps:
  # the @0 refers to the (major) version of the *task* on Microsoft's
  # end, not the order in the build matrix nor anything to do
  # with version of Python selected
  - task: UsePythonVersion@0
    inputs:
      versionSpec: '3.6'
      addToPath: true
      architecture: 'x64'
  # NOTE: do we have a compelling reason to use older / newer
  # versions of Xcode toolchain for testing?
  - script: /bin/bash -c "sudo xcode-select -s /Applications/Xcode_10.app/Contents/Developer"
    displayName: 'select Xcode version'
  # NOTE: might be better if we could avoid installing
  # two C compilers, but with homebrew looks like we're
  # now stuck getting the full gcc toolchain instead of
  # just pulling in gfortran
  - script: brew install gcc
    displayName: 'make gfortran available on mac os vm'
  - script: python -m pip install --upgrade pip setuptools wheel
    displayName: 'Install tools'
  - script: python -m pip install cython nose pytest-xdist pytz
    displayName: 'Install dependencies; some are optional to avoid test skips'
  # NOTE: init_dgelsd failed init issue with current ACCELERATE /
  # LAPACK configuration on Azure macos image; at the time of writing
  # this plagues homebrew / macports NumPy builds, but we will
  # circumvent for now by aggressively disabling acceleration for
  # macos NumPy builds / tests; ACCELERATE=None on its own is not
  # sufficient
  # also, might as well prefer usage of clang over gcc proper
  # to match likely scenario on many user mac machines
  - script: python setup.py build -j 4 install
    displayName: 'Build NumPy'
    env:
      BLAS: None
      LAPACK: None
      ATLAS: None
      ACCELERATE: None
      CC: /usr/bin/clang
  - script: python runtests.py --mode=full -- -n auto -rsx --junitxml=junit/test-results.xml
    displayName: 'Run Full NumPy Test Suite'
  - task: PublishTestResults@2
    inputs:
      testResultsFiles: '**/test-*.xml'
      testRunTitle: 'Publish test results for Python $(python.version)'