kubernetes/staging/src/k8s.io/apimachinery/pkg/util/net/testing/http.go

type TB …

// NewHTTPProxyHandler returns a new HTTPProxyHandler. It accepts an optional
// hook which is called early in the handler to export request state. If the
// hook returns false, the handler returns immediately with a server error.
func NewHTTPProxyHandler(t TB, hook func(req *http.Request) bool) *HTTPProxyHandler { … }

type HTTPProxyHandler …

// ServeHTTP handles an HTTP proxy request.
func (h *HTTPProxyHandler) ServeHTTP(rw http.ResponseWriter, req *http.Request) { … }

func (h *HTTPProxyHandler) Wait() { … }