DecodePingBack returns a parsed PingBackResponse for assertion purposes.

NewMutexReadWriter creates a new thread-safe io.ReadWriter.

PingBackHandler is an http.Handler that pings back the request info as JSON.

MutexReadWriter is a io.ReadWriter that can be read and worked on from multiple go routines.

PingBackResponse is a JSON struct that encodes the inbound request.

WaresTestSuite is a testify/Suite that starts a gRPC PingService server and a client.