---
platforms:
  ubuntu1404:
    build_targets:
    - "..."
    test_targets:
    - "..."
  ubuntu1604:
    build_targets:
    - "..."
    test_targets:
    - "..."

---
platforms:
  ubuntu1404:
    build_targets:
    - "..."
    test_targets:
    - "..."
  ubuntu1604:
    build_targets:
    - "..."
    test_targets:
    - "..."
  macos:
    build_targets:
    - "..."
    test_targets:
    - "..."

Enable CI testing on macOS
Enable CI testing on macOS

I remember that we disabled it, because it took too long on macOS, but OTOH the Linux builds only take ~5 minutes.

Let's try to activate it again and see what happens.