/** tests the canvas. This one as XmlElementRefs, XmlElements, and an attachment... */
  public void testCanvas() throws Exception {
    Canvas canvas = new Canvas();
    Bus bus = new Bus();
    bus.setId("busId");
    Rectangle busFrame = new Rectangle();
    busFrame.setWidth(100);
    bus.setFrame(busFrame);
    Cat cat = new Cat();
    cat.setId("catId");
    Circle catFace = new Circle();
    catFace.setRadius(30);
    cat.setFace(catFace);
    House house = new House();
    house.setId("houseId");
    Rectangle houseBase = new Rectangle();
    houseBase.setWidth(76);
    house.setBase(houseBase);
    canvas.setFigures(Arrays.asList(bus, cat, house));
    Rectangle rectangle = new Rectangle();
    rectangle.setHeight(50);
    rectangle.setId("rectId");
    Circle circle = new Circle();
    circle.setRadius(10);
    circle.setId("circleId");
    Triangle triangle = new Triangle();
    triangle.setBase(80);
    triangle.setId("triId");
    canvas.setShapes(Arrays.asList(rectangle, circle, triangle));
    byte[] swaRefBytes =
        "This is a bunch of random bytes that are to be used as an SWA ref attachment.".getBytes();
    byte[] explicitBase64Bytes =
        "This is some more random bytes that are to be used as a base 64 encoded attachment."
            .getBytes();
    byte[] attachment1Bytes =
        "This is some more random bytes that are to be used as the first MTOM attachment."
            .getBytes();
    byte[] attachment2Bytes =
        "This is some more random bytes that are to be used as the second MTOM attachment."
            .getBytes();
    byte[] attachment3Bytes =
        "This is some more random bytes that are to be used as the third MTOM attachment."
            .getBytes();
    CanvasAttachment attachment1 = new CanvasAttachment();
    attachment1.setValue(attachment1Bytes);
    CanvasAttachment attachment2 = new CanvasAttachment();
    attachment2.setValue(attachment2Bytes);
    CanvasAttachment attachment3 = new CanvasAttachment();
    attachment3.setValue(attachment3Bytes);
    ByteArrayDataSource dataSource =
        new ByteArrayDataSource(swaRefBytes, "application/octet-stream");
    dataSource.setName("somename");
    // todo: uncomment when JAXB bug is fixed
    //    canvas.setBackgroundImage(new DataHandler(dataSource));
    canvas.setExplicitBase64Attachment(explicitBase64Bytes);
    canvas.setOtherAttachments(Arrays.asList(attachment1, attachment2, attachment3));

    JacksonJaxbJsonProvider provider = new JacksonJaxbJsonProvider();
    ObjectMapper canvasMapper =
        provider.locateMapper(Canvas.class, MediaType.APPLICATION_JSON_TYPE);
    ObjectMapper clientMapper = new ObjectMapper();
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    canvasMapper.writeValue(out, canvas);
    // set up the attachments that were written

    shapes.json.draw.Canvas clientCanvas =
        clientMapper.readValue(
            new ByteArrayInputStream(out.toByteArray()), shapes.json.draw.Canvas.class);
    Collection<ObjectNode> clientShapes = clientCanvas.getShapes();
    assertEquals(3, clientShapes.size());
    for (ObjectNode shape : clientShapes) {
      assertEquals(1, shape.size());
      String shapeKey = shape.getFields().next().getKey();
      shape = (ObjectNode) shape.get(shapeKey);
      if ("circle".equals(shapeKey)) {
        assertEquals("circleId", shape.get("id").getTextValue());
        assertEquals(10, shape.get("radius").getIntValue());
      } else if ("triangle".equals(shapeKey)) {
        assertEquals("triId", shape.get("id").getTextValue());
        assertEquals(80, shape.get("base").getIntValue());
      } else if ("rectangle".equals(shapeKey)) {
        assertEquals("rectId", shape.get("id").getTextValue());
        assertEquals(50, shape.get("height").getIntValue());
      } else {
        fail("Unknown shape: " + shapeKey);
      }
    }

    Collection<ObjectNode> clientFigures = clientCanvas.getFigures();
    assertEquals(3, clientFigures.size());
    for (ObjectNode figure : clientFigures) {
      assertEquals(1, figure.size());
      String figureKey = figure.getFields().next().getKey();
      figure = (ObjectNode) figure.get(figureKey);
      if ("bus".equals(figureKey)) {
        assertEquals("busId", figure.get("id").getTextValue());
        assertTrue(figure.get("frame") != null);
        assertEquals(100, figure.get("frame").get("width").getIntValue());
      } else if ("cat".equals(figureKey)) {
        assertEquals("catId", figure.get("id").getTextValue());
        assertTrue(figure.get("circle") != null);
        assertEquals(30, figure.get("circle").get("radius").getIntValue());
      } else if ("house".equals(figureKey)) {
        assertEquals("houseId", figure.get("id").getTextValue());
        assertTrue(figure.get("base") != null);
        assertEquals(76, figure.get("base").get("width").getIntValue());
      } else {
        fail("Unknown figure: " + figure);
      }
    }

    //    DataHandler backgroundImage = clientCanvas.getBackgroundImage();
    //    InputStream attachmentStream = backgroundImage.getInputStream();
    //    ByteArrayOutputStream bgImageIn = new ByteArrayOutputStream();
    //    int byteIn = attachmentStream.read();
    //    while (byteIn > 0) {
    //      bgImageIn.write(byteIn);
    //      byteIn = attachmentStream.read();
    //    }
    //    assertTrue(Arrays.equals(swaRefBytes, bgImageIn.toByteArray()));

    byte[] base64Attachment = clientCanvas.getExplicitBase64Attachment();
    assertNotNull(base64Attachment);
    assertTrue(Arrays.equals(explicitBase64Bytes, base64Attachment));

    Collection otherAttachments = clientCanvas.getOtherAttachments();
    assertEquals(3, otherAttachments.size());
    Iterator attachmentsIt = otherAttachments.iterator();
    int attachmentCount = 0;
    while (attachmentsIt.hasNext()) {
      shapes.json.draw.CanvasAttachment otherAttachment =
          (shapes.json.draw.CanvasAttachment) attachmentsIt.next();
      byte[] otherAttachmentBytes = otherAttachment.getValue();
      if (Arrays.equals(attachment1Bytes, otherAttachmentBytes)) {
        attachmentCount++;
      } else if (Arrays.equals(attachment2Bytes, otherAttachmentBytes)) {
        attachmentCount++;
      } else if (Arrays.equals(attachment3Bytes, otherAttachmentBytes)) {
        attachmentCount++;
      } else {
        fail("Unknown attachment.");
      }
    }
    assertEquals(3, attachmentCount);

    clientCanvas.setShapes(null); // @XmlElementRefs can't be (de)serialized.
    out = new ByteArrayOutputStream();
    clientMapper.writeValue(out, clientCanvas);
    canvas = canvasMapper.readValue(new ByteArrayInputStream(out.toByteArray()), Canvas.class);

    Collection shapes = canvas.getShapes();
    assertNull(shapes);
    //    assertEquals(3, shapes.size());
    //    for (Object Shape : shapes) {
    //      if (Shape instanceof Circle) {
    //        assertEquals("circleId", ((Circle) Shape).getId());
    //        assertEquals(10, ((Circle) Shape).getRadius());
    //      }
    //      else if (Shape instanceof Rectangle) {
    //        assertEquals("rectId", ((Rectangle) Shape).getId());
    //        assertEquals(50, ((Rectangle) Shape).getHeight());
    //      }
    //      else if (Shape instanceof Triangle) {
    //        assertEquals("triId", ((Triangle) Shape).getId());
    //        assertEquals(80, ((Triangle) Shape).getBase());
    //      }
    //      else {
    //        fail("Unknown shape: " + Shape);
    //      }
    //    }

    Collection figures = canvas.getFigures();
    assertEquals(3, figures.size());
    for (Object Figure : figures) {
      if (Figure instanceof Bus) {
        bus = (Bus) Figure;
        assertEquals("busId", bus.getId());
        Rectangle BusFrame = bus.getFrame();
        assertNotNull(BusFrame);
        assertEquals(100, busFrame.getWidth());
      } else if (Figure instanceof Cat) {
        cat = (Cat) Figure;
        assertEquals("catId", cat.getId());
        Circle CatFace = cat.getFace();
        assertNotNull(CatFace);
        assertEquals(30, CatFace.getRadius());
      } else if (Figure instanceof House) {
        house = (House) Figure;
        assertEquals("houseId", house.getId());
        Rectangle HouseBase = house.getBase();
        assertNotNull(HouseBase);
        assertEquals(76, HouseBase.getWidth());
      } else {
        fail("Unknown figure: " + Figure);
      }
    }

    //    backgroundImage = canvas.getBackgroundImage();
    //    attachmentStream = backgroundImage.getInputStream();
    //    bgImageIn = new ByteArrayOutputStream();
    //    byteIn = attachmentStream.read();
    //    while (byteIn > 0) {
    //      bgImageIn.write(byteIn);
    //      byteIn = attachmentStream.read();
    //    }
    //
    //    assertTrue(Arrays.equals(swaRefBytes, bgImageIn.toByteArray()));

    base64Attachment = canvas.getExplicitBase64Attachment();
    assertNotNull(base64Attachment);
    assertTrue(Arrays.equals(explicitBase64Bytes, base64Attachment));

    otherAttachments = canvas.getOtherAttachments();
    assertEquals(3, otherAttachments.size());
    attachmentsIt = otherAttachments.iterator();
    attachmentCount = 0;
    while (attachmentsIt.hasNext()) {
      CanvasAttachment otherAttachment = (CanvasAttachment) attachmentsIt.next();
      byte[] otherAttachmentBytes = otherAttachment.getValue();
      if (Arrays.equals(attachment1Bytes, otherAttachmentBytes)) {
        attachmentCount++;
      } else if (Arrays.equals(attachment2Bytes, otherAttachmentBytes)) {
        attachmentCount++;
      } else if (Arrays.equals(attachment3Bytes, otherAttachmentBytes)) {
        attachmentCount++;
      } else {
        fail("Unknown attachment.");
      }
    }
    assertEquals(3, attachmentCount);

    // todo: test element ref to an attachment element
    // todo: test element refs of attachment elements.
  }
  /** tests bus. This one has an element wrapper. */
  public void testBus() throws Exception {
    Bus bus = new Bus();
    bus.setId("some bus");
    Label cityBus = new Label();
    cityBus.setValue("city");
    Label countryBus = new Label();
    countryBus.setValue("country");
    Label longDistanceBus = new Label();
    longDistanceBus.setValue("long-distance");

    bus.setId("bus id");
    bus.setLabels(Arrays.asList(cityBus, countryBus, longDistanceBus));
    Rectangle door = new Rectangle();
    door.setColor(Color.BLUE);
    door.setWidth(2);
    door.setHeight(4);
    door.setLineStyle(LineStyle.solid);
    bus.setDoor(door);
    Rectangle frame = new Rectangle();
    frame.setHeight(10);
    frame.setWidth(50);
    frame.setColor(Color.YELLOW);
    frame.setLineStyle(LineStyle.solid);
    bus.setFrame(frame);
    Circle front = new Circle();
    front.setColor(Color.BLUE);
    front.setLineStyle(LineStyle.dotted);
    front.setRadius(6);
    Circle back = new Circle();
    back.setColor(Color.BLUE);
    back.setLineStyle(LineStyle.dotted);
    back.setRadius(7);
    bus.setWheels(new Circle[] {front, back});
    Rectangle window1 = new Rectangle();
    window1.setColor(Color.BLUE);
    window1.setWidth(2);
    window1.setHeight(2);
    window1.setLineStyle(LineStyle.solid);
    Rectangle window2 = new Rectangle();
    window2.setColor(Color.BLUE);
    window2.setWidth(2);
    window2.setHeight(2);
    window2.setLineStyle(LineStyle.solid);
    Rectangle window3 = new Rectangle();
    window3.setColor(Color.BLUE);
    window3.setWidth(2);
    window3.setHeight(2);
    window3.setLineStyle(LineStyle.solid);
    bus.setWindows(Arrays.asList(window1, window2, window3));
    Map<Integer, Circle> riders = new HashMap<Integer, Circle>();
    Circle rider3 = new Circle();
    rider3.setRadius(3);
    riders.put(3, rider3);
    Circle rider4 = new Circle();
    rider4.setRadius(4);
    riders.put(4, rider4);
    bus.setType(XmlQNameEnumUtil.toQName(BusType.charter));

    JacksonJaxbJsonProvider provider = new JacksonJaxbJsonProvider();
    ObjectMapper busMapper = provider.locateMapper(Bus.class, MediaType.APPLICATION_JSON_TYPE);
    ObjectMapper clientMapper = new ObjectMapper();

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    busMapper.writeValue(out, bus);
    ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
    shapes.json.vehicles.Bus clientBus = clientMapper.readValue(in, shapes.json.vehicles.Bus.class);
    assertEquals("bus id", clientBus.getId());
    ArrayList<String> labels =
        new ArrayList<String>(Arrays.asList("city", "country", "long-distance"));
    for (Object l : clientBus.getLabels()) {
      shapes.json.Label label = (shapes.json.Label) l;
      assertTrue(labels.remove(label.getValue()));
    }
    shapes.json.Rectangle clientDoor = clientBus.getDoor();
    assertSame(shapes.json.Color.BLUE, clientDoor.getColor());
    assertEquals(2, clientDoor.getWidth());
    assertEquals(4, clientDoor.getHeight());
    assertSame(shapes.json.LineStyle.solid, clientDoor.getLineStyle());
    shapes.json.Rectangle clientFrame = clientBus.getFrame();
    assertEquals(10, clientFrame.getHeight());
    assertEquals(50, clientFrame.getWidth());
    assertSame(shapes.json.Color.YELLOW, clientFrame.getColor());
    assertSame(shapes.json.LineStyle.solid, clientFrame.getLineStyle());
    shapes.json.Circle[] clientWheels = clientBus.getWheels();
    assertEquals(2, clientWheels.length);
    assertEquals(6, clientWheels[0].getRadius());
    assertSame(shapes.json.Color.BLUE, clientWheels[0].getColor());
    assertSame(shapes.json.LineStyle.dotted, clientWheels[0].getLineStyle());
    assertEquals(7, clientWheels[1].getRadius());
    assertSame(shapes.json.Color.BLUE, clientWheels[1].getColor());
    assertSame(shapes.json.LineStyle.dotted, clientWheels[1].getLineStyle());
    shapes.json.Rectangle[] clientWindows =
        (shapes.json.Rectangle[]) clientBus.getWindows().toArray(new shapes.json.Rectangle[3]);
    assertEquals(2, clientWindows[0].getWidth());
    assertEquals(2, clientWindows[0].getHeight());
    assertEquals(shapes.json.Color.BLUE, clientWindows[0].getColor());
    assertEquals(shapes.json.LineStyle.solid, clientWindows[0].getLineStyle());
    assertEquals(2, clientWindows[1].getWidth());
    assertEquals(2, clientWindows[1].getHeight());
    assertEquals(shapes.json.Color.BLUE, clientWindows[1].getColor());
    assertEquals(shapes.json.LineStyle.solid, clientWindows[1].getLineStyle());
    assertEquals(2, clientWindows[2].getWidth());
    assertEquals(2, clientWindows[2].getHeight());
    assertEquals(shapes.json.Color.BLUE, clientWindows[2].getColor());
    assertEquals(shapes.json.LineStyle.solid, clientWindows[2].getLineStyle());

    out = new ByteArrayOutputStream();
    clientMapper.writeValue(out, clientBus);
    bus = busMapper.readValue(new ByteArrayInputStream(out.toByteArray()), Bus.class);
    door = bus.getDoor();
    assertSame(Color.BLUE, door.getColor());
    assertEquals(2, door.getWidth());
    assertEquals(4, door.getHeight());
    assertSame(LineStyle.solid, door.getLineStyle());
    frame = bus.getFrame();
    assertEquals(10, frame.getHeight());
    assertEquals(50, frame.getWidth());
    assertSame(Color.YELLOW, frame.getColor());
    assertSame(LineStyle.solid, frame.getLineStyle());
    Circle[] wheels = bus.getWheels();
    assertEquals(2, wheels.length);
    assertEquals(6, wheels[0].getRadius());
    assertSame(Color.BLUE, wheels[0].getColor());
    assertSame(LineStyle.dotted, wheels[0].getLineStyle());
    assertEquals(7, wheels[1].getRadius());
    assertSame(Color.BLUE, wheels[1].getColor());
    assertSame(LineStyle.dotted, wheels[1].getLineStyle());
    Rectangle[] windows = bus.getWindows().toArray(new Rectangle[3]);
    assertEquals(2, windows[0].getWidth());
    assertEquals(2, windows[0].getHeight());
    assertEquals(Color.BLUE, windows[0].getColor());
    assertEquals(LineStyle.solid, windows[0].getLineStyle());
    assertEquals(2, windows[1].getWidth());
    assertEquals(2, windows[1].getHeight());
    assertEquals(Color.BLUE, windows[1].getColor());
    assertEquals(LineStyle.solid, windows[1].getLineStyle());
    assertEquals(2, windows[2].getWidth());
    assertEquals(2, windows[2].getHeight());
    assertEquals(Color.BLUE, windows[2].getColor());
    assertEquals(LineStyle.solid, windows[2].getLineStyle());
    assertEquals(BusType.charter, XmlQNameEnumUtil.fromQName(bus.getType(), BusType.class));

    // todo: test an element wrapper around elementRefs
  }