abstract the test runner's multiplatform logic a bit more
abstract the test runner's multiplatform logic a bit more

dherman/nanny,neon-bindings/neon,neon-bindings/neon,neon-bindings/neon,rustbridge/neon,rustbridge/neon,dherman/nanny,rustbridge/neon,dherman/nanny,rustbridge/neon,rustbridge/neon,neon-bindings/neon,dherman/nanny,rustbridge/neon