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Add a simple round-trip test
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‎src/test/java/com/fasterxml/jackson/databind/MediaItem.java

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package com.fasterxml.jackson.databind;
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import java.util.*;
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import com.fasterxml.jackson.annotation.JsonFormat;
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import com.fasterxml.jackson.annotation.JsonPropertyOrder;
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@JsonFormat(shape=JsonFormat.Shape.ARRAY)
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@JsonPropertyOrder({"content", "images"})
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public class MediaItem
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{
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public enum Player { JAVA, FLASH; }
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public enum Size { SMALL, LARGE; }
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private List<Photo> _photos;
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private Content _content;
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public MediaItem() { }
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public MediaItem(Content c)
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{
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_content = c;
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}
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public void addPhoto(Photo p) {
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if (_photos == null) {
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_photos = new ArrayList<Photo>();
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}
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_photos.add(p);
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}
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public List<Photo> getImages() { return _photos; }
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public void setImages(List<Photo> p) { _photos = p; }
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public Content getContent() { return _content; }
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public void setContent(Content c) { _content = c; }
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/*
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/**********************************************************
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/* Helper types
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/**********************************************************
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*/
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@JsonFormat(shape=JsonFormat.Shape.ARRAY)
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@JsonPropertyOrder({"uri","title","width","height","size"})
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public static class Photo
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{
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private String _uri;
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private String _title;
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private int _width;
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private int _height;
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private Size _size;
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public Photo() {}
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public Photo(String uri, String title, int w, int h, Size s)
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{
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_uri = uri;
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_title = title;
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_width = w;
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_height = h;
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_size = s;
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}
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public String getUri() { return _uri; }
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public String getTitle() { return _title; }
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public int getWidth() { return _width; }
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public int getHeight() { return _height; }
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public Size getSize() { return _size; }
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public void setUri(String u) { _uri = u; }
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public void setTitle(String t) { _title = t; }
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public void setWidth(int w) { _width = w; }
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public void setHeight(int h) { _height = h; }
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public void setSize(Size s) { _size = s; }
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}
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@JsonFormat(shape=JsonFormat.Shape.ARRAY)
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@JsonPropertyOrder({"uri","title","width","height","format","duration","size","bitrate","persons","player","copyright"})
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public static class Content
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{
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private Player _player;
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private String _uri;
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private String _title;
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private int _width;
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private int _height;
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private String _format;
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private long _duration;
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private long _size;
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private int _bitrate;
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private List<String> _persons;
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private String _copyright;
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public Content() { }
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public void addPerson(String p) {
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if (_persons == null) {
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_persons = new ArrayList<String>();
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}
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_persons.add(p);
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}
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public Player getPlayer() { return _player; }
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public String getUri() { return _uri; }
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public String getTitle() { return _title; }
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public int getWidth() { return _width; }
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public int getHeight() { return _height; }
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public String getFormat() { return _format; }
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public long getDuration() { return _duration; }
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public long getSize() { return _size; }
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public int getBitrate() { return _bitrate; }
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public List<String> getPersons() { return _persons; }
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public String getCopyright() { return _copyright; }
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public void setPlayer(Player p) { _player = p; }
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public void setUri(String u) { _uri = u; }
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public void setTitle(String t) { _title = t; }
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public void setWidth(int w) { _width = w; }
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public void setHeight(int h) { _height = h; }
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public void setFormat(String f) { _format = f; }
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public void setDuration(long d) { _duration = d; }
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public void setSize(long s) { _size = s; }
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public void setBitrate(int b) { _bitrate = b; }
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public void setPersons(List<String> p) { _persons = p; }
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public void setCopyright(String c) { _copyright = c; }
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}
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}

‎src/test/java/com/fasterxml/jackson/databind/RoundtripTest.java

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package com.fasterxml.jackson.databind;
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public class RoundtripTest extends BaseMapTest
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{
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private final ObjectMapper MAPPER = new ObjectMapper();
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public void testMedaItemRoundtrip() throws Exception
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{
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MediaItem.Content c = new MediaItem.Content();
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c.setBitrate(9600);
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c.setCopyright("none");
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c.setDuration(360000L);
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c.setFormat("lzf");
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c.setHeight(640);
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c.setSize(128000L);
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c.setTitle("Amazing Stuff For Something Or Oth\u00CBr!");
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c.setUri("http://multi.fario.us/index.html");
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c.setWidth(1400);
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c.addPerson("Joe Sixp\u00e2ck");
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c.addPerson("Ezekiel");
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c.addPerson("Sponge-Bob Squarepant\u00DF");
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MediaItem input = new MediaItem(c);
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input.addPhoto(new MediaItem.Photo());
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input.addPhoto(new MediaItem.Photo());
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input.addPhoto(new MediaItem.Photo());
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String json = MAPPER.writerWithDefaultPrettyPrinter().writeValueAsString(input);
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MediaItem output = MAPPER.readValue(new java.io.StringReader(json), MediaItem.class);
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assertNotNull(output);
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assertNotNull(output.getImages());
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assertEquals(input.getImages().size(), output.getImages().size());
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assertNotNull(output.getContent());
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assertEquals(input.getContent().getTitle(), output.getContent().getTitle());
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assertEquals(input.getContent().getUri(), output.getContent().getUri());
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// compare re-serialization as a simple check as well
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assertEquals(json, MAPPER.writerWithDefaultPrettyPrinter().writeValueAsString(output));
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}
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}

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