imagetagtest.java

html to xml convertor

// HTMLParser Library $Name: v1_6 $ - A java-based parser for HTML
// http://sourceforge.org/projects/htmlparser
// Copyright (C) 2004 Somik Raha
//
// Revision Control Information
//
// $Source: /cvsroot/htmlparser/htmlparser/src/org/htmlparser/tests/tagTests/ImageTagTest.java,v $
// $Author: derrickoswald $
// $Date: 2004/09/02 02:28:14 $
// $Revision: 1.46 $
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//

package org.htmlparser.tests.tagTests;

import org.htmlparser.Node;
import org.htmlparser.PrototypicalNodeFactory;
import org.htmlparser.tags.ImageTag;
import org.htmlparser.tags.LinkTag;
import org.htmlparser.tags.TableColumn;
import org.htmlparser.tags.TableRow;
import org.htmlparser.tests.ParserTestCase;
import org.htmlparser.util.NodeIterator;
import org.htmlparser.util.ParserException;
import org.htmlparser.util.ParserUtils;

public class ImageTagTest extends ParserTestCase
{
    static
    {
        System.setProperty ("org.htmlparser.tests.tagTests.ImageTagTest", "ImageTagTest");
    }

    public ImageTagTest(String name) {
        super(name);
    }

    /**
     * The bug being reproduced is this : <BR>
     * &lt;BODY aLink=#ff0000 bgColor=#ffffff link=#0000cc onload=setfocus() text=#000000 <BR>
     * vLink=#551a8b&gt;
     * The above line is incorrectly parsed in that, the BODY tag is not identified.
     * Creation date: (6/17/2001 4:01:06 PM)
     */
    public void testImageTag() throws ParserException
    {
        createParser("<IMG alt=Google height=115 src=\"goo/title_homepage4.gif\" width=305>","http://www.google.com/test/index.html");
        parseAndAssertNodeCount(1);
        // The node should be an HTMLImageTag
        assertTrue("Node should be a HTMLImageTag",node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag)node[0];
        assertEquals("The image locn","http://www.google.com/test/goo/title_homepage4.gif",imageTag.getImageURL());
    }

    /**
     * The bug being reproduced is this : <BR>
     * &lt;BODY aLink=#ff0000 bgColor=#ffffff link=#0000cc onload=setfocus() text=#000000 <BR>
     * vLink=#551a8b&gt;
     * The above line is incorrectly parsed in that, the BODY tag is not identified.
     * Creation date: (6/17/2001 4:01:06 PM)
     */
    public void testImageTagBug() throws ParserException
    {
        createParser("<IMG alt=Google height=115 src=\"../goo/title_homepage4.gif\" width=305>","http://www.google.com/test/");
        parseAndAssertNodeCount(1);
        // The node should be an HTMLImageTag
        assertTrue("Node should be a HTMLImageTag",node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag)node[0];
        assertEquals("The image locn","http://www.google.com/goo/title_homepage4.gif",imageTag.getImageURL());
    }

    /**
     * The bug being reproduced is this : <BR>
     * &lt;BODY aLink=#ff0000 bgColor=#ffffff link=#0000cc onload=setfocus() text=#000000 <BR>
     * vLink=#551a8b&gt;
     * The above line is incorrectly parsed in that, the BODY tag is not identified.
     * Creation date: (6/17/2001 4:01:06 PM)
     */
    public void testImageTageBug2() throws ParserException
    {
        createParser("<IMG alt=Google height=115 src=\"../../goo/title_homepage4.gif\" width=305>","http://www.google.com/test/test/index.html");
        parseAndAssertNodeCount(1);
        // The node should be an HTMLImageTag
        assertTrue("Node should be a HTMLImageTag",node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag)node[0];
        assertEquals("The image locn","http://www.google.com/goo/title_homepage4.gif",imageTag.getImageURL());
    }

    /**
     * This bug occurs when there is a null pointer exception thrown while scanning a tag using LinkScanner.
     * Creation date: (7/1/2001 2:42:13 PM)
     */
    public void testImageTagSingleQuoteBug() throws ParserException
    {
        createParser("<IMG SRC='abcd.jpg'>","http://www.cj.com/");
        parseAndAssertNodeCount(1);
        assertTrue("Node should be a HTMLImageTag",node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag)node[0];
        assertEquals("Image incorrect","http://www.cj.com/abcd.jpg",imageTag.getImageURL());
    }

    /**
     * The bug being reproduced is this : <BR>
     * &lt;A HREF=&gt;Something&lt;A&gt;<BR>
     * vLink=#551a8b&gt;
     * The above line is incorrectly parsed in that, the BODY tag is not identified.
     * Creation date: (6/17/2001 4:01:06 PM)
     */
    public void testNullImageBug() throws ParserException
    {
        createParser("<IMG SRC=>","http://www.google.com/test/index.html");
        parseAndAssertNodeCount(1);
        // The node should be an HTMLLinkTag
        assertTrue("Node should be a HTMLImageTag",node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag)node[0];
        assertStringEquals("The image location","",imageTag.getImageURL());
    }

    public void testToHTML() throws ParserException {
        String img = "<IMG alt=Google height=115 src=\"../../goo/title_homepage4.gif\" width=305>";
        createParser(img,"http://www.google.com/test/test/index.html");
        parseAndAssertNodeCount(1);
        // The node should be an ImageTag
        assertTrue("Node should be a ImageTag",node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag)node[0];
        assertStringEquals("toHtml",img,imageTag.toHtml());
        assertEquals("Alt","Google",imageTag.getAttribute("alt"));
        assertEquals("Height","115",imageTag.getAttribute("height"));
        assertEquals("Width","305",imageTag.getAttribute("width"));
    }

    /**
     * See bug #753003 <IMG> within <A> missed when followed by <MAP>
     * Not reproducible.
     */
    public ImageTag extractLinkImage (LinkTag link)
    {
        Node[] list = ParserUtils.findTypeInNode (link, ImageTag.class);
        return (0 == list.length ? null : (ImageTag)list[0]);
    }

    /**
     * See bug #753003 <IMG> within <A> missed when followed by <MAP>
     * Not reproducible.
     */
    public void testMapFollowImg () throws ParserException
    {
        String html = "<a href=\"Biography/Biography.html\" "
            + "onMouseOut=\"MM_swapImgRestore()\" "
            + "onMouseOver=\"MM_swapImage('Image13','','Graphics/SchneiderPic1.gif',1)\">"
            + "<img name=\"Image13\" border=\"0\" src=\"Graphics/SchneiderPic.gif\" "
            + "width=\"127\" height=\"175\" usemap=\"#Image13Map\" "
            + "alt=\"Graphics/SchneiderPic.gif\"> <map name=\"Image13Map\">"
            + "<area shape=\"circle\" coords=\"67,88,66\" href=\"Biography/Biography.html\" "
            + "onClick=\"newWindow('Biography/Biography.html','HTML','menubar=yes,scrollbars=yes,resizable=yes,left=0,top=0'); return false\" target=\"HTML\">"
            + "</map>"
            + "</a>";
        createParser (html);
        parseAndAssertNodeCount (1);
        assertTrue ("Node should be a LinkTag", node[0] instanceof LinkTag);
        LinkTag link = (LinkTag)node[0];
        ImageTag img = extractLinkImage (link);
        assertNotNull ("no image tag", img);
    }

    /**
     * Test empty attribute.
     * See bug #755929 Empty string attr. value causes attr parsing to be stopped
     * and bug #753012 IMG SRC not parsed v1.3 & v1.4
     */
    public void testEmptyStringElement () throws ParserException
    {
        String html = "<img height=\"1\" width=\"1\" alt=\"\" "
            + "src=\"http://i.cnn.net/cnn/images/1.gif\"/>";

        createParser (html);
        parseAndAssertNodeCount (1);
        assertTrue ("Node should be an ImageTag", node[0] instanceof ImageTag);
        ImageTag img = (ImageTag)node[0];
        assertTrue ("bad source", "http://i.cnn.net/cnn/images/1.gif".equals (img.getImageURL ()));
    }

    public void testDynamicRelativeImageScan() throws ParserException {
        createParser("<IMG SRC=\"../abc/def/mypic.jpg\">","http://www.yahoo.com/ghi?abcdefg");
        parseAndAssertNodeCount(1);
        assertTrue("Node identified should be HTMLImageTag",node[0] instanceof ImageTag);
        ImageTag imageTag = (ImageTag)node[0];
        assertEquals("Expected Link","http://www.yahoo.com/abc/def/mypic.jpg",imageTag.getImageURL());
    }