b.Errorf("b.N=%d but handled %d", b.N, handled)
	}
}

// same as above, but representing the most simple possible request
// and handler. Notably: the handler does not call rw.Header().
func BenchmarkServerFakeConnWithKeepAliveLite(b *testing.B) {
	b.ReportAllocs()

	req := reqBytes(`GET / HTTP/1.1
Host: golang.org
`)
	res := []byte("Hello world!\n")

	conn := &rwTestConn{