@Test
public void containsMember() {

    ObjectNode node = ObjectNode.objectNodeBuilder()
            .withMember("foo", "bar")
            .withMember("baz", true)
            .withMember("bam", false)
            .build();
    assertTrue(node.containsMember("foo"));
    assertTrue(node.containsMember("baz"));
    assertTrue(node.containsMember("bam"));
}