/*   Copyright 2004 The Apache Software Foundation
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package xmlcursor.xpath.common;


import org.apache.xmlbeans.XmlObject;
import org.junit.Test;
import xmlcursor.common.BasicCursorTestCase;
import xmlcursor.common.Common;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;


/**
 * Verifies XPath nodetest functions
 */
public class XPathNodetestTest extends BasicCursorTestCase {

     private static String fixPath(String path){
        return "."+path;
     }


    public void testAllNodes(){
	//e.g //A/B/*: tested by Zvon
    }

	@Test
    public void testComment()throws Exception {
		String sXml = Common.XML_FOO_NS_PREFIX;
		m_xc = XmlObject.Factory.parse(sXml).newCursor();
		String sExpected = "<xml-fragment xmlns:edi=\"http://ecommerce.org/schema\"><!-- the 'price' element's namespace is http://ecommerce.org/schema -->" + Common.XMLFRAG_ENDTAG;//the comment string
		String sXPath = "//comment()";
		m_xc.selectPath(fixPath(sXPath));
		m_xc.toNextSelection();
		assertEquals(m_xc.xmlText(), sExpected);
    }

	@Test
	public void testNode() throws Exception {
		String sInput = "<foo> <node>foo</node>txt</foo>";
		m_xc = XmlObject.Factory.parse(sInput).newCursor();
		String sXPath = "//foo/node()";
		String[] sExpected = new String[]{Common.XMLFRAG_BEGINTAG + " " + Common.XMLFRAG_ENDTAG, "<node>foo</node>", Common.XMLFRAG_BEGINTAG + "txt" + Common.XMLFRAG_ENDTAG};
		m_xc.selectPath(fixPath(sXPath));
		int i = 0;
		if (m_xc.getSelectionCount() != sExpected.length)
			fail("node() failed");
		while (m_xc.hasNextSelection()) {
			m_xc.toNextSelection();
			assertEquals(m_xc.xmlText(), sExpected[i++]);
		}
	}

	@Test
	public void testPI() throws Exception {
		String sInput = Common.XML_FOO_PROCINST;
		m_xc = XmlObject.Factory.parse(sInput).newCursor();
		String sXPath1 = "//processing-instruction()";
		String sXPath2 = "//processing-instruction(\"xml-stylesheet\")";
		String sXPath3 = "//processing-instruction(\"xsl\")";
		String sExpected1 = Common.XMLFRAG_BEGINTAG + "<?xml-stylesheet type=\"text/xsl\" xmlns=\"http://openuri.org/shipping/\"?>" + Common.XMLFRAG_ENDTAG;
		String sExpected2 = "";
		m_xc.selectPath(fixPath(sXPath1));
		assertEquals(m_xc.getSelectionCount(), 1);
		m_xc.toNextSelection();
		assertEquals(m_xc.xmlText(), sExpected1);


		m_xc.clearSelections();
		m_xc.selectPath(fixPath(sXPath2));
		assertEquals(m_xc.xmlText(), sExpected1);

		m_xc.clearSelections();
		//shouldn't select any nodes
		m_xc.selectPath(fixPath(sXPath3));
		assertEquals(m_xc.getSelectionCount(), 0);
	}

	@Test
	public void testText() throws Exception {
		String sInput = "<?xml-stylesheet type=\"text/xsl\" xmlns=\"http://openuri.org/shipping/\"?><br>foo<foo>text</foo></br>";
		m_xc = XmlObject.Factory.parse(sInput).newCursor();
		String sXPath = "//text()";
		String sExpected1 = Common.XMLFRAG_BEGINTAG + "foo" + Common.XMLFRAG_ENDTAG;
		String sExpected2 = Common.XMLFRAG_BEGINTAG + "text" + Common.XMLFRAG_ENDTAG;
		m_xc.selectPath(sXPath);
		assertEquals(m_xc.getSelectionCount(), 2);
		m_xc.toNextSelection();
		assertEquals(m_xc.xmlText(), sExpected1);
		m_xc.toNextSelection();
		assertEquals(m_xc.xmlText(), sExpected2);
	}

	@Test
	public void testTextObject() throws Exception {
		String sInput = "<?xml-stylesheet type=\"text/xsl\" xmlns=\"http://openuri.org/shipping/\"?><br>foo<foo>text</foo></br>";
		m_xo = XmlObject.Factory.parse(sInput);
		String sXPath = "//text()";
		String sExpected1 = Common.XMLFRAG_BEGINTAG + "foo<foo>text</foo>" + Common.XMLFRAG_ENDTAG;
		String sExpected2 = Common.XMLFRAG_BEGINTAG + "text" + Common.XMLFRAG_ENDTAG;
		XmlObject[] res = m_xo.selectPath(sXPath);
		assertEquals(res.length, 2);
		assertEquals(res[0].xmlText(), sExpected1);
		assertEquals(res[1].xmlText(), sExpected2);
	}
}