// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package testenv provides information about what functionality
// is available in different testing environments run by the Go team.
//
// It is an internal package because these details are specific
// to the Go team's test setup (on build.golang.org) and not
// fundamental to tests in general.
package testenv

import (
	"bytes"
	"errors"

	d, ok := ctx.Deadline()
	if !ok {
		return true
	}
	return t.Before(d)
}

// knownRoundTripperImpl reports whether rt is a RoundTripper that's
// maintained by the Go team and known to implement the latest
// optional semantics (notably contexts). The Request is used
// to check whether this particular request is using an alternate protocol,