jsptagtest.java

htmlparser1.6,对HTML语言的解析,而且对每个标签都基本上有相应的解析类,非常不错.

// 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/JspTagTest.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.PrototypicalNodeFactory;
import org.htmlparser.Tag;
import org.htmlparser.tags.JspTag;
import org.htmlparser.tests.ParserTestCase;
import org.htmlparser.util.ParserException;

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

    private static final boolean JSP_TESTS_ENABLED = false;

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

    /**
     * Check if the JSP Tag is being correctly recognized.
     * Our test html is : <BR>
     * &lt;%@ taglib uri="/WEB-INF/struts.tld" prefix="struts" %&gt;<BR>
     * &lt;jsp:useBean id="transfer" scope="session" class="com.bank.PageBean"/&gt;<BR>
     * &lt;%<BR>
     *   org.apache.struts.util.BeanUtils.populate(transfer, request);<BR>
     *    if(request.getParameter("marker") == null)<BR>
     *      // initialize a pseudo-property<BR>
     *        transfer.set("days", java.util.Arrays.asList(<BR>
     *            new String[] {"1", "2", "3", "4", "31"}));<BR>
     *    else <BR>
     *        if(transfer.validate(request))<BR>
     *            %&gt;&lt;jsp:forward page="transferConfirm.jsp"/&gt;&lt;%
     * %&gt;
     * Creation date: (6/17/2001 4:01:06 PM)
     */
    public void testJspTag() throws ParserException
    {
        String contents = "jsp:useBean id=\"transfer\" scope=\"session\" class=\"com.bank.PageBean\"/";
        String jsp = "<" + contents + ">";
        String contents2 = "%\n"+
            "    org.apache.struts.util.BeanUtils.populate(transfer, request);\n"+
            "    if(request.getParameter(\"marker\") == null)\n"+
            "        // initialize a pseudo-property\n"+
            "        transfer.set(\"days\", java.util.Arrays.asList(\n"+
            "            new String[] {\"1\", \"2\", \"3\", \"4\", \"31\"}));\n"+
            "    else \n"+
            "        if(transfer.validate(request))\n"+
            "            %";
        createParser(
            "<%@ taglib uri=\"/WEB-INF/struts.tld\" prefix=\"struts\" %>\n"+
            jsp + "\n" +
            "<" + contents2 + ">\n<jsp:forward page=\"transferConfirm.jsp\"/><%\n"+
            "%>");
        parser.setNodeFactory (new PrototypicalNodeFactory (new JspTag ()));
        parseAndAssertNodeCount(8);
        // The first node should be a JspTag
        assertTrue("Node 1 should be a JspTag",node[0] instanceof JspTag);
        JspTag tag = (JspTag)node[0];
        assertStringEquals("Contents of the tag","%@ taglib uri=\"/WEB-INF/struts.tld\" prefix=\"struts\" %",tag.getText());

        // The second node should be a normal tag
        assertTrue("Node 3 should be a normal Tag",node[2] instanceof Tag);
        Tag htag = (Tag)node[2];
        assertStringEquals("Contents of the tag",contents,htag.getText());
        assertStringEquals("html",jsp,htag.toHtml());
        // The third node should be an JspTag
        assertTrue("Node 5 should be an JspTag",node[4] instanceof JspTag);
        JspTag tag2 = (JspTag)node[4];
        assertStringEquals("Contents of the tag",contents2,tag2.getText());
    }

    /**
     * Check if the JSP Tag is being correctly recognized.
     * Our test html is : <BR>
     * &lt;%@ taglib uri="/WEB-INF/struts.tld" prefix="struts" %&gt;<BR>
     * &lt;jsp:useBean id="transfer" scope="session" class="com.bank.PageBean"/&gt;<BR>
     * &lt;%<BR>
     *   org.apache.struts.util.BeanUtils.populate(transfer, request);<BR>
     *    if(request.getParameter("marker") == null)<BR>
     *      // initialize a pseudo-property<BR>
     *        transfer.set("days", java.util.Arrays.asList(<BR>
     *            new String[] {"1", "2", "3", "4", "31"}));<BR>
     *    else <BR>
     *        if(transfer.validate(request))<BR>
     *            %&gt;&lt;jsp:forward page="transferConfirm.jsp"/&gt;&lt;%
     * %&gt;
     * Creation date: (6/17/2001 4:01:06 PM)
     */
    public void testToHtml () throws ParserException
    {
        String guts = "\n"+
            "    org.apache.struts.util.BeanUtils.populate(transfer, request);\n"+
            "    if(request.getParameter(\"marker\") == null)\n"+
            "        // initialize a pseudo-property\n"+
            "        transfer.set(\"days\", java.util.Arrays.asList(\n"+
            "            new String[] {\"1\", \"2\", \"3\", \"4\", \"31\"}));\n"+
            "    else \n"+
            "        if(transfer.validate(request))\n"+
            "            ";
        createParser(
            "<%@ taglib uri=\"/WEB-INF/struts.tld\" prefix=\"struts\" %>\n"+
            "<jsp:useBean id=\"transfer\" scope=\"session\" class=\"com.bank.PageBean\"/>\n"+
            "<%" +
            guts
            + "%><jsp:forward page=\"transferConfirm.jsp\"/><%\n"+
            "%>\n");
        parser.setNodeFactory (new PrototypicalNodeFactory (new JspTag ()));
        parseAndAssertNodeCount(8);
        // The first node should be a JspTag
        assertTrue("Node 1 should be a JspTag",node[0] instanceof JspTag);
        JspTag tag = (JspTag)node[0];
        assertEquals("Raw String of the first JSP tag","<%@ taglib uri=\"/WEB-INF/struts.tld\" prefix=\"struts\" %>",tag.toHtml());


        // The fifth node should be a JspTag
        assertTrue("Node 5 should be a JspTag",node[4] instanceof JspTag);
        JspTag tag2 = (JspTag)node[4];
        String expected = "<%" + guts + "%>";
        assertEquals("Raw String of the second JSP tag",expected,tag2.toHtml());
        assertTrue("Node 7 should be a JspTag",node[6] instanceof JspTag);
        JspTag tag4 = (JspTag)node[6];
        expected = "<%\n%>";
        assertEquals("Raw String of the fourth JSP tag",expected,tag4.toHtml());
    }

    public void testSpecialCharacters() throws ParserException {
        StringBuffer sb1 = new StringBuffer();
        sb1.append("<% for (i=0;i<j;i++);%>");
        createParser(sb1.toString());
        parser.setNodeFactory (new PrototypicalNodeFactory (new JspTag ()));
        parseAndAssertNodeCount(1);
        //assertTrue("Node should be a jsp tag",node[1] instanceof HTMLJspTag);
        JspTag jspTag = (JspTag)node[0];
        assertEquals("jsp toHTML()","<% for (i=0;i<j;i++);%>",jspTag.toHtml());
    }


    /**
     * See bug #772700 Jsp Tags are not parsed correctly when in quoted attributes.
     */
    public void testJspTagsInUnQuotedAttribes() throws ParserException
    {
        // this test should pass when none of the attibutes are quoted
        if (JSP_TESTS_ENABLED)
            testJspTagsInAttributes("<img alt=<%=altText1%> src=<%=imgUrl1%> border=<%=borderToggle%>>");
    }

    /**
     * See bug #772700 Jsp Tags are not parsed correctly when in quoted attributes.
     */
    public void testJspTagsInQuotedAttribes() throws ParserException
    {
        // this test seems to mess up....
        testJspTagsInAttributes("<img alt=\"<%=altText1%>\" src=\"<%=imgUrl1%>\" border=\"<%=borderToggle%>\">");
    }

    private void testJspTagsInAttributes(String html) throws ParserException
    {
        createParser (html);
        parser.setNodeFactory (new PrototypicalNodeFactory (new JspTag ()));
        if (JSP_TESTS_ENABLED)
        {
            parseAndAssertNodeCount (7);

            assertTrue ("Should be a Jsp tag but was " + node[1].getClass().getName(), node[1] instanceof JspTag);
            assertTrue ("Should be a Jsp tag but was " + node[3].getClass().getName(), node[3] instanceof JspTag);
            assertTrue ("Should be a Jsp tag but was " + node[5].getClass().getName(), node[5] instanceof JspTag);

            assertTrue ("Text Should be '<%=altText1%>'but was '" + node[1].toHtml() + "'" , node[1].toHtml().equals("<%=altText1%>"));
            assertTrue ("Text Should be '<%=imgUrl1%>' but was '" + node[3].toHtml() + "'" , node[3].toHtml().equals("<%=imgUrl1%>"));
            assertTrue ("Text Should be '<%=borderToggle%>' but was '" + node[5].toHtml() + "'" , node[5].toHtml().equals("<%=borderToggle%>"));
        }
        else
            parseAndAssertNodeCount (1);
    }
}