package com.fasterxml.jackson.dataformat.xml.stream;

import java.io.*;

import javax.xml.namespace.QName;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.xml.XmlFactory;
import com.fasterxml.jackson.dataformat.xml.XmlMapper;
import com.fasterxml.jackson.dataformat.xml.XmlTestBase;
import com.fasterxml.jackson.dataformat.xml.ser.ToXmlGenerator;

public class XmlGeneratorTest extends XmlTestBase
{
    public void testSimpleElement() throws Exception
    {
        XmlFactory f = new XmlFactory();
        StringWriter out = new StringWriter();
        ToXmlGenerator gen = f.createGenerator(out);
        // root name is special, need to be fed first:
        gen.setNextName(new QName("root"));
        gen.writeStartObject();
        gen.writeFieldName("elem");
        gen.writeString("value");
        gen.writeEndObject();
        gen.close();
        String xml = out.toString();
        // one more thing: remove that annoying 'xmlns' decl, if it's there:
        xml = removeSjsxpNamespace(xml);
        assertEquals("<root><elem>value</elem></root>", xml);
    }

    public void testSimpleAttribute() throws Exception
    {
        XmlFactory f = new XmlFactory();
        StringWriter out = new StringWriter();
        ToXmlGenerator gen = f.createGenerator(out);
        // root name is special, need to be fed first:
        gen.setNextName(new QName("root"));
        gen.writeStartObject();
        // and also need to force attribute
        gen.setNextIsAttribute(true);
        gen.writeFieldName("attr");
        gen.writeString("value");
        gen.writeEndObject();
        gen.close();
        String xml = out.toString();
        // one more thing: remove that annoying 'xmlns' decl, if it's there:
        xml = removeSjsxpNamespace(xml);
        assertEquals("<root attr=\"value\"/>", xml);
    }

    public void testSecondLevelAttribute() throws Exception
    {
        XmlFactory f = new XmlFactory();
        StringWriter out = new StringWriter();
        ToXmlGenerator gen = f.createGenerator(out);
        gen.setNextName(new QName("root"));
        gen.writeStartObject();
        gen.writeFieldName("elem");
        gen.writeStartObject();
        // and also need to force attribute
        gen.setNextIsAttribute(true);
        gen.writeFieldName("attr");
        gen.writeString("value");
        gen.writeEndObject();
        gen.writeEndObject();
        gen.close();
        String xml = out.toString();
        // one more thing: remove that annoying 'xmlns' decl, if it's there:
        xml = removeSjsxpNamespace(xml);
        assertEquals("<root><elem attr=\"value\"/></root>", xml);
    }

    public void testAttrAndElem() throws Exception
    {
        XmlFactory f = new XmlFactory();
        StringWriter out = new StringWriter();
        ToXmlGenerator gen = f.createGenerator(out);
        gen.setNextName(new QName("root"));
        gen.writeStartObject();
        // and also need to force attribute
        gen.writeFieldName("attr");
        gen.setNextIsAttribute(true);
        gen.writeNumber(-3);

        // Also let's add child element as well
        gen.setNextIsAttribute(false);
        gen.writeFieldName("elem");
        gen.writeNumber(13);
        gen.writeEndObject();
        gen.close();
        String xml = removeSjsxpNamespace(out.toString());
        assertEquals("<root attr=\"-3\"><elem>13</elem></root>", xml);
    }

    // [Issue#6], missing overrides for File-backed generator
    public void testWriteToFile() throws Exception
    {
        ObjectMapper mapper = new XmlMapper();
        File f = File.createTempFile("test", ".tst");
        mapper.writeValue(f, new IntWrapper(42));

        String xml = readAll(f).trim();

        assertEquals("<IntWrapper><i>42</i></IntWrapper>", xml);
        f.delete();
    }    
}
