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1   ///////////////////////////////////////////////////////////////////////////////////////////////
2   // checkstyle: Checks Java source code and other text files for adherence to a set of rules.
3   // Copyright (C) 2001-2026 the original author or authors.
4   //
5   // This library is free software; you can redistribute it and/or
6   // modify it under the terms of the GNU Lesser General Public
7   // License as published by the Free Software Foundation; either
8   // version 2.1 of the License, or (at your option) any later version.
9   //
10  // This library is distributed in the hope that it will be useful,
11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  // Lesser General Public License for more details.
14  //
15  // You should have received a copy of the GNU Lesser General Public
16  // License along with this library; if not, write to the Free Software
17  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18  ///////////////////////////////////////////////////////////////////////////////////////////////
19  
20  package com.puppycrawl.tools.checkstyle.checks.naming;
21  
22  import static com.puppycrawl.tools.checkstyle.checks.naming.AbstractClassNameCheck.MSG_ILLEGAL_ABSTRACT_CLASS_NAME;
23  
24  import org.junit.jupiter.api.Test;
25  
26  import com.puppycrawl.tools.checkstyle.AbstractExamplesModuleTestSupport;
27  
28  public class ClassTypeParameterNameCheckExamplesTest extends AbstractExamplesModuleTestSupport {
29  
30      @Override
31      public String getPackageLocation() {
32          return "com/puppycrawl/tools/checkstyle/checks/naming/classtypeparametername";
33      }
34  
35      @Test
36      public void testExample1() throws Exception {
37          final String pattern = "^[A-Z]$";
38          final String[] expected = {
39              "14:18: " + getCheckMessage(MSG_ILLEGAL_ABSTRACT_CLASS_NAME, "t", pattern),
40              "15:18: " + getCheckMessage(MSG_ILLEGAL_ABSTRACT_CLASS_NAME, "abc", pattern),
41              "16:18: " + getCheckMessage(MSG_ILLEGAL_ABSTRACT_CLASS_NAME, "LISTENER", pattern),
42              "17:18: " + getCheckMessage(MSG_ILLEGAL_ABSTRACT_CLASS_NAME, "RequestT", pattern),
43          };
44  
45          verifyWithInlineConfigParser(getPath("Example1.java"), expected);
46      }
47  
48      @Test
49      public void testExample2() throws Exception {
50          final String pattern = "^[A-Z]{2,}$";
51          final String[] expected = {
52              "15:18: " + getCheckMessage(MSG_ILLEGAL_ABSTRACT_CLASS_NAME, "T", pattern),
53              "16:18: " + getCheckMessage(MSG_ILLEGAL_ABSTRACT_CLASS_NAME, "t", pattern),
54              "17:18: " + getCheckMessage(MSG_ILLEGAL_ABSTRACT_CLASS_NAME, "abc", pattern),
55              "19:18: " + getCheckMessage(MSG_ILLEGAL_ABSTRACT_CLASS_NAME, "RequestT", pattern),
56          };
57  
58          verifyWithInlineConfigParser(getPath("Example2.java"), expected);
59      }
60  
61      @Test
62      public void testUseCase1() throws Exception {
63          final String pattern = "(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)";
64          final String[] expected = {
65              "16:18: " + getCheckMessage(MSG_ILLEGAL_ABSTRACT_CLASS_NAME, "t", pattern),
66              "17:18: " + getCheckMessage(MSG_ILLEGAL_ABSTRACT_CLASS_NAME, "abc", pattern),
67              "18:18: " + getCheckMessage(MSG_ILLEGAL_ABSTRACT_CLASS_NAME, "LISTENER", pattern),
68          };
69  
70          verifyWithInlineConfigParser(getPath("UseCase1.java"), expected);
71      }
72  
73  }