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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) 2001-2025 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 org.checkstyle.suppressionxpathfilter.naming;
21  
22  import java.io.File;
23  import java.util.Collections;
24  import java.util.List;
25  
26  import org.checkstyle.suppressionxpathfilter.AbstractXpathTestSupport;
27  import org.junit.jupiter.api.Test;
28  
29  import com.puppycrawl.tools.checkstyle.DefaultConfiguration;
30  import com.puppycrawl.tools.checkstyle.checks.naming.AbstractNameCheck;
31  import com.puppycrawl.tools.checkstyle.checks.naming.MethodNameCheck;
32  
33  public class XpathRegressionMethodNameTest extends AbstractXpathTestSupport {
34  
35      private final String checkName = MethodNameCheck.class.getSimpleName();
36  
37      @Override
38      protected String getCheckName() {
39          return checkName;
40      }
41  
42      @Override
43      protected String getPackageLocation() {
44          return "org/checkstyle/suppressionxpathfilter/naming/methodname";
45      }
46  
47      @Test
48      public void testDefault() throws Exception {
49          final File fileToProcess =
50                  new File(getPath("InputXpathMethodNameDefault.java"));
51  
52          final String pattern = "^[a-z][a-zA-Z0-9]*$";
53          final DefaultConfiguration moduleConfig =
54                  createModuleConfig(MethodNameCheck.class);
55  
56          final String[] expectedViolation = {
57              "6:16: " + getCheckMessage(MethodNameCheck.class,
58                          AbstractNameCheck.MSG_INVALID_PATTERN, "SecondMethod", pattern),
59          };
60  
61          final List<String> expectedXpathQueries = Collections.singletonList(
62                  "/COMPILATION_UNIT"
63                          + "/CLASS_DEF[./IDENT[@text"
64                          + "='InputXpathMethodNameDefault']]"
65                          + "/OBJBLOCK/METHOD_DEF/IDENT[@text='SecondMethod']"
66          );
67          runVerifications(moduleConfig, fileToProcess, expectedViolation,
68                  expectedXpathQueries);
69      }
70  
71      @Test
72      public void testInnerClass() throws Exception {
73          final File fileToProcess =
74                  new File(getPath("InputXpathMethodNameInner.java"));
75  
76          final String pattern = "^[a-z](_?[a-zA-Z0-9]+)*$";
77          final DefaultConfiguration moduleConfig =
78                  createModuleConfig(MethodNameCheck.class);
79          moduleConfig.addProperty("format", "^[a-z](_?[a-zA-Z0-9]+)*$");
80  
81          final String[] expectedViolation = {
82              "7:21: " + getCheckMessage(MethodNameCheck.class,
83                          AbstractNameCheck.MSG_INVALID_PATTERN, "MyMethod2", pattern),
84          };
85  
86          final List<String> expectedXpathQueries = Collections.singletonList(
87                  "/COMPILATION_UNIT"
88                          + "/CLASS_DEF[./IDENT[@text"
89                          + "='InputXpathMethodNameInner']]"
90                          + "/OBJBLOCK/CLASS_DEF[./IDENT[@text='Inner']]"
91                          + "/OBJBLOCK/METHOD_DEF/IDENT[@text='MyMethod2']"
92          );
93          runVerifications(moduleConfig, fileToProcess, expectedViolation,
94                  expectedXpathQueries);
95      }
96  
97      @Test
98      public void testCustomProperties() throws Exception {
99          final File fileToProcess =
100                 new File(getPath("InputXpathMethodNameCustomProperties.java"));
101 
102         final String pattern = "^[a-z](_?[a-zA-Z0-9]+)*$";
103         final DefaultConfiguration moduleConfig =
104                 createModuleConfig(MethodNameCheck.class);
105         moduleConfig.addProperty("format", "^[a-z](_?[a-zA-Z0-9]+)*$");
106         moduleConfig.addProperty("applyToPublic", "false");
107         moduleConfig.addProperty("applyToProtected", "false");
108 
109         final String[] expectedViolation = {
110             "7:19: " + getCheckMessage(MethodNameCheck.class,
111                         AbstractNameCheck.MSG_INVALID_PATTERN,
112                         "ThirdMethod", pattern),
113         };
114 
115         final List<String> expectedXpathQueries = Collections.singletonList(
116                 "/COMPILATION_UNIT"
117                         + "/INTERFACE_DEF[./IDENT[@text='Check']]"
118                         + "/OBJBLOCK/METHOD_DEF/IDENT[@text='ThirdMethod']"
119         );
120         runVerifications(moduleConfig, fileToProcess, expectedViolation,
121                 expectedXpathQueries);
122     }
123 
124 }