ListCycleTest.java

package org.simpleframework.xml.strategy;

import java.io.StringWriter;
import java.util.List;

import org.simpleframework.xml.Attribute;
import org.simpleframework.xml.Element;
import org.simpleframework.xml.ElementList;
import org.simpleframework.xml.Root;
import org.simpleframework.xml.core.Persister;
import org.simpleframework.xml.strategy.CycleStrategy;

import org.simpleframework.xml.ValidationTestCase;

public class ListCycleTest extends ValidationTestCase {
   
   private static final String SOURCE =
   "<?xml version=\"1.0\"?>\n"+
   "<root id='main'>\n"+
   "   <one length='5' id='numbers'>\n\r"+
   "      <text value='entry one'/>  \n\r"+
   "      <text value='entry two'/>  \n\r"+
   "      <text value='entry three'/>  \n\r"+
   "      <text value='entry four'/>  \n\r"+
   "      <text value='entry five'/>  \n\r"+
   "   </one>\n\r"+
   "   <two ref='numbers'/>\n"+
   "   <three length='3'>\n" +
   "      <text value='tom'/>  \n\r"+
   "      <text value='dick'/>  \n\r"+
   "      <text value='harry'/>  \n\r"+
   "   </three>\n"+
   "   <example ref='main'/>\n"+
   "</root>";
   
   private static final String NESTED =
   "<?xml version=\"1.0\"?>\n"+
   "<root id='main'>\n"+
   "   <list id='list'>\n" +
   "      <value>  \n\r"+
   "         <list ref='list'/>\n"+  
   "      </value>\r\n"+
   "   </list>\n"+
   "</root>";
   
   private static final String INLINE_LIST = 
   "<?xml version=\"1.0\"?>\n"+
   "<inlineListExample id='main'>\n"+
   "   <text value='entry one'/>  \n\r"+
   "   <text value='entry two'/>  \n\r"+
   "   <text value='entry three'/>  \n\r"+
   "   <text value='entry four'/>  \n\r"+
   "   <text value='entry five'/>  \n\r"+
   "   <example ref='main'/>\n"+
   "</inlineListExample>";
   
   private static final String INLINE_PRIMITIVE_LIST = 
   "<?xml version=\"1.0\"?>\n"+
   "<inlinePrimitiveListExample id='main'>\n"+
   "   <string>entry one</string>  \n\r"+
   "   <string>entry two</string>  \n\r"+
   "   <string>entry three</string>  \n\r"+
   "   <string>entry four</string>  \n\r"+
   "   <string>entry five</string>  \n\r"+
   "   <example ref='main'/>\n"+
   "</inlinePrimitiveListExample>"; 
   
   @Root(name="root")
   private static class ListExample {

      @ElementList(name="one", type=Entry.class)           
      public List<Entry> one;      
      
      @ElementList(name="two", type=Entry.class)           
      public List<Entry> two;
      
      @ElementList(name="three", type=Entry.class)           
      public List<Entry> three;
      
      @Element(name="example")
      public ListExample example;
   }
   
   @Root
   private static class InlineListExample {
      
      @ElementList(inline=true)           
      public List<Entry> list;      
      
      @Element
      public InlineListExample example;
   }
   
   @Root
   private static class InlinePrimitiveListExample {
      
      @ElementList(inline=true, data=true)           
      public List<String> list;      
      
      @Element
      public InlinePrimitiveListExample example;
   }
   
   @Root(name="text") 
   private static class Entry {

      @Attribute(name="value")
      public String value;

      public Entry() {
         super();              
      }

      public Entry(String value) {
         this.value = value;              
      }
   }   
   
   @Root(name="root")
   private static class NestedListExample {
      
      @ElementList(name="list", type=Value.class)
      public List<Value> list;
   }
   
   @Root(name="value")
   private static class Value {
      
      @ElementList(name="list", type=Value.class, required=false)
      private List<Value> list;
   }
   
   private Persister persister;
   
   public void setUp() throws Exception {
      persister = new Persister(new CycleStrategy("id", "ref"));
   }
   
   public void testCycle() throws Exception {
      ListExample example = persister.read(ListExample.class, SOURCE);
      
      assertEquals(example.one.size(), 5);
      assertEquals(example.one.get(0).value, "entry one");
      assertEquals(example.one.get(1).value, "entry two");
      assertEquals(example.one.get(2).value, "entry three");
      assertEquals(example.one.get(3).value, "entry four");
      assertEquals(example.one.get(4).value, "entry five");
      
      assertEquals(example.two.size(), 5);
      assertEquals(example.two.get(0).value, "entry one");
      assertEquals(example.two.get(1).value, "entry two");
      assertEquals(example.two.get(2).value, "entry three");
      assertEquals(example.two.get(3).value, "entry four");
      assertEquals(example.two.get(4).value, "entry five");
      
      assertEquals(example.three.size(), 3);
      assertEquals(example.three.get(0).value, "tom");
      assertEquals(example.three.get(1).value, "dick");
      assertEquals(example.three.get(2).value, "harry");
   
      assertTrue(example.one == example.two);
      assertTrue(example == example.example);
      
      StringWriter out = new StringWriter();
      persister.write(example, out);
      
      example = persister.read(ListExample.class, SOURCE);
      
      assertEquals(example.one.size(), 5);
      assertEquals(example.one.get(0).value, "entry one");
      assertEquals(example.one.get(1).value, "entry two");
      assertEquals(example.one.get(2).value, "entry three");
      assertEquals(example.one.get(3).value, "entry four");
      assertEquals(example.one.get(4).value, "entry five");
      
      assertEquals(example.two.size(), 5);
      assertEquals(example.two.get(0).value, "entry one");
      assertEquals(example.two.get(1).value, "entry two");
      assertEquals(example.two.get(2).value, "entry three");
      assertEquals(example.two.get(3).value, "entry four");
      assertEquals(example.two.get(4).value, "entry five");
      
      assertEquals(example.three.size(), 3);
      assertEquals(example.three.get(0).value, "tom");
      assertEquals(example.three.get(1).value, "dick");
      assertEquals(example.three.get(2).value, "harry");
   
      assertTrue(example.one == example.two);
      assertTrue(example == example.example);
      
      validate(example, persister);
   }
   
   public void testInlineList() throws Exception {
      InlineListExample example = persister.read(InlineListExample.class, INLINE_LIST);
      
      assertEquals(example.list.size(), 5);
      assertEquals(example.list.get(0).value, "entry one");
      assertEquals(example.list.get(1).value, "entry two");
      assertEquals(example.list.get(2).value, "entry three");
      assertEquals(example.list.get(3).value, "entry four");
      assertEquals(example.list.get(4).value, "entry five");
   
      assertTrue(example == example.example);
      
      StringWriter out = new StringWriter();
      persister.write(example, out);
      
      example = persister.read(InlineListExample.class, INLINE_LIST);
      
      assertEquals(example.list.size(), 5);
      assertEquals(example.list.get(0).value, "entry one");
      assertEquals(example.list.get(1).value, "entry two");
      assertEquals(example.list.get(2).value, "entry three");
      assertEquals(example.list.get(3).value, "entry four");
      assertEquals(example.list.get(4).value, "entry five");
   
      assertTrue(example == example.example);
      
      validate(example, persister);
   }
   
   public void testInlinePrimitiveList() throws Exception {
      InlinePrimitiveListExample example = persister.read(InlinePrimitiveListExample.class, INLINE_PRIMITIVE_LIST);
      
      assertEquals(example.list.size(), 5);
      assertEquals(example.list.get(0), "entry one");
      assertEquals(example.list.get(1), "entry two");
      assertEquals(example.list.get(2), "entry three");
      assertEquals(example.list.get(3), "entry four");
      assertEquals(example.list.get(4), "entry five");
   
      assertTrue(example == example.example);
      
      StringWriter out = new StringWriter();
      persister.write(example, out);
      
      example = persister.read(InlinePrimitiveListExample.class, INLINE_PRIMITIVE_LIST);
      
      assertEquals(example.list.size(), 5);
      assertEquals(example.list.get(0), "entry one");
      assertEquals(example.list.get(1), "entry two");
      assertEquals(example.list.get(2), "entry three");
      assertEquals(example.list.get(3), "entry four");
      assertEquals(example.list.get(4), "entry five");
   
      assertTrue(example == example.example);
      
      validate(example, persister);
   }
   
   public void testNestedExample() throws Exception {
      NestedListExample root = persister.read(NestedListExample.class, NESTED);
      
      assertEquals(root.list.size(), 1);
      assertTrue(root.list.get(0).list == root.list);

      validate(root, persister);
   }
}