@Test
public void propertiesAt() {

  ObjectNode node = newObject();
  node.putArray("foo").add(newKvObject("k1", "v1")).add(newKvObject("k2", "v2"));
  Map<String, String> value = Selectors.propertiesAt(node, FOO_FIELD);
  assertThat(value, allOf(hasEntry("k1", "v1"), hasEntry("k2", "v2")));
}