public static MocoEventAction get(final String url, final HttpHeader... headers) {
        return get(text(checkNotNullOrEmpty(url, "URL should not be null")),
                checkNotNull(headers, "Headers should not be null"));
    }
@Test
    public void should_throw_exception_for_unknown_request() {
        assertThrows(HttpResponseException.class, () ->
                running(server, () -> assertThat(helper.get(root()), is("bar"))));
    }