### Question:
Int32MultiArray extends Message { public static Int32MultiArray fromMessage(Message m) { return Int32MultiArray.fromJsonObject(m.toJsonObject()); } Int32MultiArray();  Int32MultiArray(MultiArrayLayout layout, int[] data); MultiArrayLayout getLayout(); int size(); int get(int index); int[] getData(); @Override Int32MultiArray clone(); static Int32MultiArray fromJsonString(java.lang.String jsonString); static Int32MultiArray fromMessage(Message m); static Int32MultiArray fromJsonObject(JsonObject jsonObject); static final java.lang.String FIELD_LAYOUT; static final java.lang.String FIELD_DATA; static final java.lang.String TYPE; }### Answer:
@Test public void testFromMessage() { Message m = new Message(a1.toString()); Int32MultiArray p = Int32MultiArray.fromMessage(m); assertEquals(a1.toString(), p.toString()); assertEquals(a1.toJsonObject(), p.toJsonObject()); assertEquals(a1.getMessageType(), p.getMessageType()); assertEquals(a1.size(), p.size()); assertTrue(Arrays.equals(a1.getData(), p.getData())); assertEquals(a1.getLayout(), p.getLayout()); assertNotSame(a1, p); assertNotSame(a1.toString(), p.toString()); assertNotSame(a1.toJsonObject(), p.toJsonObject()); }