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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 static com.puppycrawl.tools.checkstyle.checks.naming.AbstractNameCheck.MSG_INVALID_PATTERN;
23  
24  import java.io.File;
25  import java.util.Collections;
26  import java.util.List;
27  
28  import org.checkstyle.suppressionxpathfilter.AbstractXpathTestSupport;
29  import org.junit.jupiter.api.Test;
30  
31  import com.puppycrawl.tools.checkstyle.DefaultConfiguration;
32  import com.puppycrawl.tools.checkstyle.checks.naming.ConstantNameCheck;
33  
34  public class XpathRegressionConstantNameTest extends AbstractXpathTestSupport {
35  
36      private static final Class<ConstantNameCheck> CLASS = ConstantNameCheck.class;
37      private static final String PATTERN = "^[A-Z][A-Z0-9]*(_[A-Z0-9]+)*$";
38      private final String checkName = CLASS.getSimpleName();
39  
40      @Override
41      protected String getCheckName() {
42          return checkName;
43      }
44  
45      @Override
46      protected String getPackageLocation() {
47          return "org/checkstyle/suppressionxpathfilter/naming/constantname";
48      }
49  
50      @Test
51      public void testLowercase() throws Exception {
52          final File fileToProcess = new File(
53              getPath("InputXpathConstantNameLowercase.java"));
54  
55          final DefaultConfiguration moduleConfig = createModuleConfig(CLASS);
56  
57          final String[] expectedViolation = {
58              "4:29: " + getCheckMessage(CLASS, MSG_INVALID_PATTERN, "number", PATTERN),
59          };
60  
61          final List<String> expectedXpathQueries = Collections.singletonList(
62              "/COMPILATION_UNIT/CLASS_DEF[./IDENT"
63                  + "[@text='InputXpathConstantNameLowercase']]"
64                  + "/OBJBLOCK/VARIABLE_DEF/IDENT[@text='number']"
65          );
66  
67          runVerifications(moduleConfig, fileToProcess, expectedViolation,
68              expectedXpathQueries);
69      }
70  
71      @Test
72      public void testCamelCase() throws Exception {
73          final File fileToProcess =
74              new File(getPath("InputXpathConstantNameCamelCase.java"));
75  
76          final DefaultConfiguration moduleConfig = createModuleConfig(CLASS);
77  
78          final String[] expectedViolation = {
79              "4:29: " + getCheckMessage(CLASS,
80                  MSG_INVALID_PATTERN, "badConstant", PATTERN),
81          };
82  
83          final List<String> expectedXpathQueries = Collections.singletonList(
84              "/COMPILATION_UNIT/CLASS_DEF"
85                  + "[./IDENT[@text='InputXpathConstantNameCamelCase']]"
86                  + "/OBJBLOCK/VARIABLE_DEF/IDENT[@text='badConstant']"
87          );
88  
89          runVerifications(moduleConfig, fileToProcess, expectedViolation,
90              expectedXpathQueries);
91      }
92  
93      @Test
94      public void testWithBeginningUnderscore() throws Exception {
95          final File fileToProcess = new File(
96              getPath("InputXpathConstantNameWithBeginningUnderscore.java"));
97  
98          final DefaultConfiguration moduleConfig = createModuleConfig(CLASS);
99  
100         final String[] expectedViolation = {
101             "4:33: " + getCheckMessage(CLASS, MSG_INVALID_PATTERN, "_CONSTANT", PATTERN),
102         };
103 
104         final List<String> expectedXpathQueries = Collections.singletonList(
105             "/COMPILATION_UNIT/CLASS_DEF[./IDENT"
106                 + "[@text='InputXpathConstantNameWithBeginningUnderscore']]"
107                 + "/OBJBLOCK/VARIABLE_DEF/IDENT[@text='_CONSTANT']"
108         );
109 
110         runVerifications(moduleConfig, fileToProcess, expectedViolation,
111             expectedXpathQueries);
112     }
113 
114     @Test
115     public void testWithTwoUnderscores() throws Exception {
116         final File fileToProcess = new File(
117             getPath("InputXpathConstantNameWithTwoUnderscores.java"));
118 
119         final DefaultConfiguration moduleConfig = createModuleConfig(CLASS);
120 
121         final String[] expectedViolation = {
122             "4:30: " + getCheckMessage(CLASS, MSG_INVALID_PATTERN, "BAD__NAME", PATTERN),
123         };
124 
125         final List<String> expectedXpathQueries = Collections.singletonList(
126             "/COMPILATION_UNIT/CLASS_DEF[./IDENT"
127                 + "[@text='InputXpathConstantNameWithTwoUnderscores']]"
128                 + "/OBJBLOCK/VARIABLE_DEF/IDENT[@text='BAD__NAME']"
129         );
130 
131         runVerifications(moduleConfig, fileToProcess, expectedViolation,
132             expectedXpathQueries);
133     }
134 }