kubernetes/staging/src/k8s.io/apiserver/pkg/admission/plugin/webhook/testing/webhook_server.go

// NewTestServerWithHandler returns a webhook test HTTPS server
// which uses given handler function to handle requests
func NewTestServerWithHandler(t testing.TB, handler func(http.ResponseWriter, *http.Request)) *httptest.Server { … }

// NewTestServer returns a webhook test HTTPS server with fixed webhook test certs.
func NewTestServer(t testing.TB) *httptest.Server { … }

func webhookHandler(w http.ResponseWriter, r *http.Request) { … }

// ClockSteppingWebhookHandler given a fakeClock returns a request handler
// that moves time in given clock by an amount specified in the webhook request
func ClockSteppingWebhookHandler(t testing.TB, fakeClock *testingclock.FakeClock) func(http.ResponseWriter, *http.Request) { … }