📄 titletagtest.java
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// 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/TitleTagTest.java,v $// $Author: derrickoswald $// $Date: 2004/07/02 00:49:31 $// $Revision: 1.36 $//// 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.BaseHrefTag;import org.htmlparser.tags.HeadTag;import org.htmlparser.tags.Html;import org.htmlparser.tags.MetaTag;import org.htmlparser.tags.StyleTag;import org.htmlparser.tags.TitleTag;import org.htmlparser.tests.ParserTestCase;import org.htmlparser.util.ParserException;public class TitleTagTest extends ParserTestCase { static { System.setProperty ("org.htmlparser.tests.tagTests.TitleTagTest", "TitleTagTest"); } private TitleTag titleTag; private String prefix = "<html><head>"; private String tag1 = "<title>Yahoo!</title>"; private String tag2 = "<base href=http://www.yahoo.com/ target=_top>"; private String tag3 = "<meta http-equiv=\"PICS-Label\" content='(PICS-1.1 \"http://www.icra.org/ratingsv02.html\" l r (cz 1 lz 1 nz 1 oz 1 vz 1) gen true for \"http://www.yahoo.com\" r (cz 1 lz 1 nz 1 oz 1 vz 1) \"http://www.rsac.org/ratingsv01.html\" l r (n 0 s 0 v 0 l 0) gen true for \"http://www.yahoo.com\" r (n 0 s 0 v 0 l 0))'>"; private String tag4 = "<style>a.h{background-color:#ffee99}</style>"; private String suffix = "</head>"; public TitleTagTest(String name) { super(name); } protected void setUp() throws Exception { super.setUp(); createParser(prefix + tag1 + tag2 + tag3 + tag4 + suffix); parseAndAssertNodeCount(1); assertTrue("Only node should be an HTML node",node[0] instanceof Html); Html html = (Html)node[0]; assertTrue("HTML node should have one child",1 == html.getChildCount ()); assertTrue("Only node should be an HEAD node",html.getChild(0) instanceof HeadTag); HeadTag head = (HeadTag)html.getChild(0); assertTrue("HEAD node should have four children",4 == head.getChildCount ()); assertTrue("First child should be a title tag",head.getChild(0) instanceof TitleTag); titleTag = (TitleTag)head.getChild(0); } public void testToPlainTextString() throws ParserException { // check the title node assertEquals("Title","Yahoo!",titleTag.toPlainTextString()); } public void testToHTML() throws ParserException { assertStringEquals("Raw String",tag1,titleTag.toHtml()); } public void testToString() throws ParserException { assertEquals("Title","TITLE: Yahoo!",titleTag.toString()); } public void testScan() throws ParserException { createParser("<html><head><title>Yahoo!</title><base href=http://www.yahoo.com/ target=_top><meta http-equiv=\"PICS-Label\" content='(PICS-1.1 \"http://www.icra.org/ratingsv02.html\" l r (cz 1 lz 1 nz 1 oz 1 vz 1) gen true for \"http://www.yahoo.com\" r (cz 1 lz 1 nz 1 oz 1 vz 1) \"http://www.rsac.org/ratingsv01.html\" l r (n 0 s 0 v 0 l 0) gen true for \"http://www.yahoo.com\" r (n 0 s 0 v 0 l 0))'><style>a.h{background-color:#ffee99}</style></head>"); parser.setNodeFactory ( new PrototypicalNodeFactory ( new Tag[] { new TitleTag (), new StyleTag (), new MetaTag (), })); parseAndAssertNodeCount(7); assertTrue(node[2] instanceof TitleTag); // check the title node TitleTag titleTag = (TitleTag) node[2]; assertEquals("Title","Yahoo!",titleTag.getTitle()); } /** * Testcase to reproduce a bug reported by Cedric Rosa, * on not ending the title tag correctly, we would get * null pointer exceptions.. */ public void testIncompleteTitle() throws ParserException { String text = "<HTML>\n"+ "<HEAD>\n"+ // note the missing angle bracket on the close title: "<TITLE>SISTEMA TERRA, VOL. VI , No. 1-3, December 1997</TITLE\n"+ "</HEAD>\n"+ "<BODY>\n"+ "The body.\n"+ "</BODY>\n"+ "</HTML>"; createParser(text); parseAndAssertNodeCount(1); assertTrue ("Only node is a html tag",node[0] instanceof Html); Html html = (Html)node[0]; assertEquals ("Html node has five children", 5, html.getChildCount ()); assertTrue ("Second child is a head tag", html.childAt (1) instanceof HeadTag); HeadTag head = (HeadTag)html.childAt (1); assertEquals ("Head node has two children", 2, head.getChildCount ()); assertTrue ("Second child is a title tag", head.childAt (1) instanceof TitleTag); TitleTag titleTag = (TitleTag)head.childAt (1); assertEquals("Title","SISTEMA TERRA, VOL. VI , No. 1-3, December 1997",titleTag.getTitle());// Note: this will fail because of the extra > inserted to finish the /TITLE tag:// assertStringEquals ("toHtml", text, html.toHtml ()); } /** * If there are duplicates of the title tag, the parser crashes. * This bug was reported by Claude Duguay */ public void testDoubleTitleTag() throws ParserException{ createParser( "<html><head><TITLE>\n"+ "<html><head><TITLE>\n"+ "Double tags can hang the code\n"+ "</TITLE></head><body>\n"+ "<body><html>"); parser.setNodeFactory (new PrototypicalNodeFactory (new TitleTag ())); parseAndAssertNodeCount(9); assertTrue("Third tag should be a title tag",node[2] instanceof TitleTag); TitleTag titleTag = (TitleTag)node[2]; assertEquals("Title","\n",titleTag.getTitle()); assertTrue("Fourth tag should be a title tag",node[3] instanceof TitleTag); titleTag = (TitleTag)node[3]; assertEquals("Title","\nDouble tags can hang the code\n",titleTag.getTitle()); } /** * Testcase based on Claude Duguay's report. This proves * that the parser throws exceptions when faced with malformed html */ public void testNoEndTitleTag() throws ParserException { createParser( "<TITLE>KRP VALIDATION<PROCESS/TITLE>"); parseAndAssertNodeCount(1); TitleTag titleTag = (TitleTag)node[0]; assertEquals("Expected title","KRP VALIDATION",titleTag.getTitle()); } public void testTitleTagContainsJspTag() throws ParserException { String title = "<title><%=gTitleString%></title>"; createParser("<html><head>" + title + "<base href=http://www.yahoo.com/ target=_top><meta http-equiv=\"PICS-Label\" content='(PICS-1.1 \"http://www.icra.org/ratingsv02.html\" l r (cz 1 lz 1 nz 1 oz 1 vz 1) gen true for \"http://www.yahoo.com\" r (cz 1 lz 1 nz 1 oz 1 vz 1) \"http://www.rsac.org/ratingsv01.html\" l r (n 0 s 0 v 0 l 0) gen true for \"http://www.yahoo.com\" r (n 0 s 0 v 0 l 0))'><style>a.h{background-color:#ffee99}</style></head>"); parser.setNodeFactory ( new PrototypicalNodeFactory ( new Tag[] { new TitleTag (), new BaseHrefTag (), new MetaTag (), new StyleTag (), })); parseAndAssertNodeCount(7); assertTrue(node[2] instanceof TitleTag); TitleTag titleTag = (TitleTag) node[2]; assertStringEquals("HTML Rendering",title,titleTag.toHtml()); }}⌨️ 快捷键说明
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