package org.json.junit;

import java.util.*;

import static org.junit.Assert.*;

import org.json.*;
import org.junit.Test;


/**
 * Tests for JSON-Java XML.java
 * Note: noSpace() will be tested by JSONMLTest
 */
public class XMLTest {

    @Test(expected=NullPointerException.class)
    public void shouldHandleNullXML() {

        String xmlStr = null;
        JSONObject jsonObject = XML.toJSONObject(xmlStr);
        assertTrue("jsonObject should be empty", jsonObject.length() == 0);
    }

    @Test(expected=NullPointerException.class)
    public void shouldHandleNullJSONXML() {
        JSONObject jsonObject= null;
        String xmlStr = XML.toString(jsonObject);
    }

    @Test
    public void shouldHandleInvalidCDATA() {
        String xmlStr = 
            "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"+
            "<addresses xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\""+
            "   xsi:noNamespaceSchemaLocation='test.xsd'>\n"+
            "    <address>\n"+
            "       <name>Joe Tester</name>\n"+
            "       <street>![Baker street 5</street>\n"+
            "   </address>\n"+
            "</addresses>";
        JSONObject jsonObject = XML.toJSONObject(xmlStr);
        assertTrue(jsonObject == null);
    }

    @Test
    public void shouldHandleEmptyXML() {

        String xmlStr = "";
        JSONObject jsonObject = XML.toJSONObject(xmlStr);
        assertTrue("jsonObject should be empty", jsonObject.length() == 0);
    }

    @Test
    public void shouldHandleEmptyJSONXML() {
        JSONObject jsonObject= new JSONObject();
        String xmlStr = XML.toString(jsonObject);
    }

    @Test
    public void shouldHandleSimpleXML() {
        String xmlStr = 
            "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"+
            "<addresses xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\""+
            "   xsi:noNamespaceSchemaLocation='test.xsd'>\n"+
            "   <address>\n"+
            "       <name>Joe Tester</name>\n"+
            "       <street>[CDATA[Baker street 5]</street>\n"+
            "   </address>\n"+
            "</addresses>";

        String expectedStr = 
            "{\"addresses\":{\"address\":{\"street\":\"[CDATA[Baker street 5]\","+
            "\"name\":\"Joe Tester\"},\"xsi:noNamespaceSchemaLocation\":"+
            "\"test.xsd\",\"xmlns:xsi\":\"http://www.w3.org/2001/"+
            "XMLSchema-instance\"}}";
        
        JSONObject expectedJsonObject = new JSONObject(expectedStr);
        
        JSONObject jsonObject = XML.toJSONObject(xmlStr);
        Util.compareActualVsExpectedJsonObjects(jsonObject,expectedJsonObject);
    }

    @Test
    public void shouldHandleCommentsInXML() {

        String xmlStr = 
                "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"+
                "<!-- this is a comment -->\n"+
                "<addresses>\n"+
                "   <address>\n"+
                "       <![CDATA[ this is -- <another> comment ]]>\n"+
                "       <name>Joe Tester</name>\n"+
                "       <!-- this is a - multi line \n"+
                "            comment -->\n"+
                "       <street>Baker street 5</street>\n"+
                "   </address>\n"+
                "</addresses>";
        JSONObject jsonObject = XML.toJSONObject(xmlStr);
    }

    @Test
    public void shouldHandleToString() {
        String xmlStr = 
            "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"+
            "<addresses xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\""+
            "   xsi:noNamespaceSchemaLocation='test.xsd'>\n"+
            "   <address>\n"+
            "       <name>[CDATA[Joe &amp; T &gt; e &lt; s &quot; t &apos; er]]</name>\n"+
            "       <street>Baker street 5</street>\n"+
            "   </address>\n"+
            "</addresses>";

        String expectedStr = 
                "{\"addresses\":{\"address\":{\"street\":\"Baker street 5\","+
                "\"name\":\"[CDATA[Joe & T > e < s \\\" t \\\' er]]\"},\"xsi:noNamespaceSchemaLocation\":"+
                "\"test.xsd\",\"xmlns:xsi\":\"http://www.w3.org/2001/"+
                "XMLSchema-instance\"}}";
        
        JSONObject jsonObject = XML.toJSONObject(xmlStr);
        String xmlToStr = XML.toString(jsonObject);
        JSONObject finalJsonObject = XML.toJSONObject(xmlToStr);
        JSONObject expectedJsonObject = new JSONObject(expectedStr);
        Util.compareActualVsExpectedJsonObjects(jsonObject,expectedJsonObject);
        Util.compareActualVsExpectedJsonObjects(finalJsonObject,expectedJsonObject);
    }
}