// and api error codes
	// Note that if we specify a versioned Status object here, we may need to
	// create one for the tests, also
	// Success:
	// http.StatusOK, http.StatusCreated, http.StatusAccepted, http.StatusNoContent
	//
	// test/integration/auth_test.go is currently the most comprehensive status code test

	for _, s := range a.group.Serializer.SupportedMediaTypes() {

func testClientCallsCloseOnlyOnce(t *testing.T, mode testMode) {
	cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
		w.WriteHeader(StatusNoContent)
	}))

	// Issue occurred non-deterministically: needed to occur after a successful
	// write (into TCP buffer) but before end of body.
	for i := 0; i < 50 && !t.Failed(); i++ {