@Deployment
public static Archive<?> deploy() {
    File[] requiredLibraries = Maven.resolver().loadPomFromFile("pom.xml")
            .resolve("org.json:json", "org.skyscreamer:jsonassert")
            .withTransitivity().asFile();

    return ShrinkWrap.create(WebArchive.class)
            .addAsLibraries(requiredLibraries);
}

@Test
public void testEmptyObject() throws JSONException {
    JsonGeneratorFactory factory = Json.createGeneratorFactory(null);
    StringWriter w = new StringWriter();
    JsonGenerator gen = factory.createGenerator(w);
    gen.writeStartObject().writeEnd();
    gen.flush();

    JSONAssert.assertEquals("{}", w.toString(), JSONCompareMode.STRICT);
}

@Test
public void testSimpleObject() throws JSONException {
    JsonGeneratorFactory factory = Json.createGeneratorFactory(null);
    StringWriter w = new StringWriter();
    JsonGenerator gen = factory.createGenerator(w);

    gen
            .writeStartObject()
            .write("apple", "red")
            .write("banana", "yellow")
            .writeEnd();
    gen.flush();
    JSONAssert.assertEquals("{\"apple\" : \"red\", \"banana\" : \"yellow\" }", w.toString(), JSONCompareMode.STRICT);
}

@Test
public void testArray() throws JSONException {
    JsonGeneratorFactory factory = Json.createGeneratorFactory(null);
    StringWriter w = new StringWriter();
    JsonGenerator gen = factory.createGenerator(w);

    gen
            .writeStartArray()
            .writeStartObject()
            .write("apple", "red")
            .writeEnd()
            .writeStartObject()
            .write("banana", "yellow")
            .writeEnd()
            .writeEnd();
    gen.flush();
    JSONAssert.assertEquals("[{\"apple\":\"red\"},{\"banana\":\"yellow\"}]", w.toString(), JSONCompareMode.STRICT);
}

@Test
public void testNestedStructure() throws JSONException {
    JsonGeneratorFactory factory = Json.createGeneratorFactory(null);
    StringWriter w = new StringWriter();
    JsonGenerator gen = factory.createGenerator(w);

    gen
            .writeStartObject()
            .write("title", "The Matrix")
            .write("year", 1999)
            .writeStartArray("cast")
            .write("Keanu Reaves")
            .write("Laurence Fishburne")
            .write("Carrie-Anne Moss")
            .writeEnd()
            .writeEnd();
    gen.flush();
    JSONAssert.assertEquals("{\"title\":\"The Matrix\",\"year\":1999,\"cast\":[\"Keanu Reaves\",\"Laurence Fishburne\",\"Carrie-Anne Moss\"]}", w.toString(), JSONCompareMode.STRICT);
}