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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.blocks;
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.blocks.EmptyBlockCheck;
31  
32  public class XpathRegressionEmptyBlockTest extends AbstractXpathTestSupport {
33  
34      private final String checkName = EmptyBlockCheck.class.getSimpleName();
35  
36      @Override
37      protected String getPackageLocation() {
38          return "org/checkstyle/suppressionxpathfilter/blocks/emptyblock";
39      }
40  
41      @Override
42      protected String getCheckName() {
43          return checkName;
44      }
45  
46      @Test
47      public void testEmptyForLoopEmptyBlock() throws Exception {
48          final File fileToProcess =
49                  new File(getPath("InputXpathEmptyBlockEmpty.java"));
50          final DefaultConfiguration moduleConfig =
51                  createModuleConfig(EmptyBlockCheck.class);
52          moduleConfig.addProperty("option", "TEXT");
53          final String[] expectedViolation = {
54              "5:38: " + getCheckMessage(EmptyBlockCheck.class,
55                  EmptyBlockCheck.MSG_KEY_BLOCK_EMPTY, "for"),
56          };
57          final List<String> expectedXpathQueries = Collections.singletonList(
58                  "/COMPILATION_UNIT"
59                      + "/CLASS_DEF[./IDENT[@text='InputXpathEmptyBlockEmpty']]"
60                      + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='emptyLoop']]"
61                      + "/SLIST/LITERAL_FOR/SLIST"
62          );
63          runVerifications(moduleConfig, fileToProcess, expectedViolation,
64                  expectedXpathQueries);
65      }
66  
67      @Test
68      public void testEmptyForLoopEmptyStatement() throws Exception {
69          final File fileToProcess =
70                  new File(getPath("InputXpathEmptyBlockEmpty.java"));
71          final DefaultConfiguration moduleConfig =
72                  createModuleConfig(EmptyBlockCheck.class);
73          final String[] expectedViolation = {
74              "5:38: " + getCheckMessage(EmptyBlockCheck.class,
75                  EmptyBlockCheck.MSG_KEY_BLOCK_NO_STATEMENT),
76          };
77          final List<String> expectedXpathQueries = Collections.singletonList(
78                  "/COMPILATION_UNIT"
79                          + "/CLASS_DEF[./IDENT[@text='InputXpathEmptyBlockEmpty']]"
80                          + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='emptyLoop']]"
81                          + "/SLIST/LITERAL_FOR/SLIST"
82          );
83          runVerifications(moduleConfig, fileToProcess, expectedViolation,
84                  expectedXpathQueries);
85      }
86  
87  }