TitleTagTest


1   // HTMLParser Library $Name: v1_5_20050313 $ - A java-based parser for HTML
2   // http://sourceforge.org/projects/htmlparser
3   // Copyright (C) 2004 Somik Raha
4   //
5   // Revision Control Information
6   //
7   // $Source: /cvsroot/htmlparser/htmlparser/src/org/htmlparser/tests/tagTests/TitleTagTest.java,v $
8   // $Author: derrickoswald $
9   // $Date: 2004/07/02 00:49:31 $
10  // $Revision: 1.36 $
11  //
12  // This library is free software; you can redistribute it and/or
13  // modify it under the terms of the GNU Lesser General Public
14  // License as published by the Free Software Foundation; either
15  // version 2.1 of the License, or (at your option) any later version.
16  //
17  // This library is distributed in the hope that it will be useful,
18  // but WITHOUT ANY WARRANTY; without even the implied warranty of
19  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20  // Lesser General Public License for more details.
21  //
22  // You should have received a copy of the GNU Lesser General Public
23  // License along with this library; if not, write to the Free Software
24  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25  //
26  
27  package org.htmlparser.tests.tagTests;
28  
29  import org.htmlparser.PrototypicalNodeFactory;
30  import org.htmlparser.Tag;
31  import org.htmlparser.tags.BaseHrefTag;
32  import org.htmlparser.tags.HeadTag;
33  import org.htmlparser.tags.Html;
34  import org.htmlparser.tags.MetaTag;
35  import org.htmlparser.tags.StyleTag;
36  import org.htmlparser.tags.TitleTag;
37  import org.htmlparser.tests.ParserTestCase;
38  import org.htmlparser.util.ParserException;
39  
40  public class TitleTagTest extends ParserTestCase {
41  
42      static
43      {
44          System.setProperty ("org.htmlparser.tests.tagTests.TitleTagTest", "TitleTagTest");
45      }
46  
47      private TitleTag titleTag;
48      private String   prefix = "<html><head>";
49      private String   tag1 = "<title>Yahoo!</title>";
50      private String   tag2 = "<base HREF=http://www.yahoo.com/ target=_top>";
51      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))'>";
52      private String   tag4 = "<style>a.h{background-color:#ffee99}</style>";
53      private String   suffix = "</head>";
54  
55      public TitleTagTest(String   name) {
56          super(name);
57      }
58      protected void setUp() throws Exception   {
59          super.setUp();
60          createParser(prefix + tag1 + tag2 + tag3 + tag4 + suffix);
61          parseAndAssertNodeCount(1);
62          assertTrue("Only node should be an HTML node",node[0] instanceof Html);
63          Html html = (Html)node[0];
64          assertTrue("HTML node should have one child",1 == html.getChildCount ());
65          assertTrue("Only node should be an HEAD node",html.getChild(0) instanceof HeadTag);
66          HeadTag head = (HeadTag)html.getChild(0);
67          assertTrue("HEAD node should have four children",4 == head.getChildCount ());
68          assertTrue("First child should be a title tag",head.getChild(0) instanceof TitleTag);
69          titleTag = (TitleTag)head.getChild(0);
70      }
71      public void testToPlainTextString() throws ParserException {
72          // check the title node
73          assertEquals("Title","Yahoo!",titleTag.toPlainTextString());
74      }
75  
76      public void testToHTML() throws ParserException {
77          assertStringEquals("Raw String",tag1,titleTag.toHtml());
78      }
79  
80      public void testToString() throws ParserException  {
81          assertEquals("Title","TITLE: Yahoo!",titleTag.toString());
82      }
83  
84      public void testScan() throws ParserException {
85          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>");
86          parser.setNodeFactory (
87              new PrototypicalNodeFactory (
88                  new Tag[]
89                  {
90                      new TitleTag (),
91                      new StyleTag (),
92                      new MetaTag (),
93                  }));
94          parseAndAssertNodeCount(7);
95          assertTrue(node[2] instanceof TitleTag);
96          // check the title node
97          TitleTag titleTag = (TitleTag) node[2];
98          assertEquals("Title","Yahoo!",titleTag.getTitle());
99      }
100 
101     /**
102      * Testcase to reproduce a bug reported by Cedric Rosa,
103      * on not ending the title tag correctly, we would get
104      * null pointer exceptions..
105      */
106     public void testIncompleteTitle() throws ParserException {
107         String   text =
108             "<HTML>\n"+
109             "<HEAD>\n"+
110             // note the missing angle bracket on the close title:
111             "<TITLE>SISTEMA TERRA, VOL. VI , No. 1-3, December 1997</TITLE\n"+
112             "</HEAD>\n"+
113             "<BODY>\n"+
114             "The body.\n"+
115             "</BODY>\n"+
116             "</HTML>";        
117         createParser(text);
118         parseAndAssertNodeCount(1);
119         assertTrue ("Only node is a html tag",node[0] instanceof Html);
120         Html html = (Html)node[0];
121         assertEquals ("Html node has five children", 5, html.getChildCount ());
122         assertTrue ("Second child is a head tag", html.childAt (1) instanceof HeadTag);
123         HeadTag head = (HeadTag)html.childAt (1);
124         assertEquals ("Head node has two children", 2, head.getChildCount ());
125         assertTrue ("Second child is a title tag", head.childAt (1) instanceof TitleTag);
126         TitleTag titleTag = (TitleTag)head.childAt (1);
127         assertEquals("Title","SISTEMA TERRA, VOL. VI , No. 1-3, December 1997",titleTag.getTitle());
128 // Note: this will fail because of the extra > inserted to finish the /TITLE tag:
129 //        assertStringEquals ("toHtml", text, html.toHtml ());
130     }
131 
132     /**
133      * If there are duplicates of the title tag, the parser crashes.
134      * This bug was reported by Claude Duguay
135      */
136     public void testDoubleTitleTag() throws ParserException{
137         createParser(
138         "<html><head><TITLE>\n"+
139         "<html><head><TITLE>\n"+
140         "Double tags can hang the code\n"+
141         "</TITLE></head><body>\n"+
142         "<body><html>");
143         parser.setNodeFactory (new PrototypicalNodeFactory (new TitleTag ()));
144         parseAndAssertNodeCount(9);
145         assertTrue("Third tag should be a title tag",node[2] instanceof TitleTag);
146         TitleTag titleTag = (TitleTag)node[2];
147         assertEquals("Title","\n",titleTag.getTitle());
148         assertTrue("Fourth tag should be a title tag",node[3] instanceof TitleTag);
149         titleTag = (TitleTag)node[3];
150         assertEquals("Title","\nDouble tags can hang the code\n",titleTag.getTitle());
151     }
152 
153     /**
154      * Testcase based on Claude Duguay's report. This proves
155      * that the parser throws exceptions when faced with malformed html
156      */
157     public void testNoEndTitleTag() throws ParserException {
158         createParser(
159         "<TITLE>KRP VALIDATION<PROCESS/TITLE>");
160         parseAndAssertNodeCount(1);
161         TitleTag titleTag = (TitleTag)node[0];
162         assertEquals("Expected title","KRP VALIDATION",titleTag.getTitle());
163     }
164 
165     public void testTitleTagContainsJspTag() throws ParserException {
166         String   title = "<title><%=gTitleString%></title>";
167         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>");
168         parser.setNodeFactory (
169             new PrototypicalNodeFactory (
170                 new Tag[]
171                 {
172                     new TitleTag (),
173                     new BaseHrefTag (),
174                     new MetaTag (),
175                     new StyleTag (),
176                 }));
177         parseAndAssertNodeCount(7);
178         assertTrue(node[2] instanceof TitleTag);
179         TitleTag titleTag = (TitleTag) node[2];
180         assertStringEquals("HTML Rendering",title,titleTag.toHtml());
181     }
182 }
183
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