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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) 2001-2024 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;
21  
22  import java.io.File;
23  import java.util.Arrays;
24  import java.util.List;
25  
26  import org.junit.jupiter.api.Test;
27  
28  import com.puppycrawl.tools.checkstyle.DefaultConfiguration;
29  import com.puppycrawl.tools.checkstyle.checks.coding.FallThroughCheck;
30  
31  public class XpathRegressionFallThroughTest extends AbstractXpathTestSupport {
32  
33      private final String checkName = FallThroughCheck.class.getSimpleName();
34  
35      @Override
36      protected String getCheckName() {
37          return checkName;
38      }
39  
40      @Test
41      public void testFallThrough() throws Exception {
42          final File fileToProcess =
43                  new File(getPath("InputXpathFallThrough.java"));
44  
45          final DefaultConfiguration moduleConfig =
46                  createModuleConfig(FallThroughCheck.class);
47  
48          final String[] expectedViolation = {
49              "11:13: " + getCheckMessage(FallThroughCheck.class,
50                  FallThroughCheck.MSG_FALL_THROUGH),
51          };
52  
53          final List<String> expectedXpathQueries = Arrays.asList(
54              "/COMPILATION_UNIT/CLASS_DEF[./IDENT[@text='InputXpathFallThrough']]"
55                  + "/OBJBLOCK"
56                  + "/METHOD_DEF[./IDENT[@text='test']]/SLIST/LITERAL_SWITCH/CASE_GROUP["
57                  + "./LITERAL_CASE/EXPR/NUM_INT[@text='2']]",
58              "/COMPILATION_UNIT/CLASS_DEF[./IDENT[@text='InputXpathFallThrough']]"
59                  + "/OBJBLOCK"
60                  + "/METHOD_DEF[./IDENT[@text='test']]/SLIST/LITERAL_SWITCH/CASE_GROUP/LITERAL_CASE"
61          );
62  
63          runVerifications(moduleConfig, fileToProcess, expectedViolation,
64                  expectedXpathQueries);
65      }
66  
67      @Test
68      public void testDefaultCase() throws Exception {
69          final File fileToProcess =
70                  new File(getPath("InputXpathFallThroughDefaultCase.java"));
71  
72          final DefaultConfiguration moduleConfig =
73                  createModuleConfig(FallThroughCheck.class);
74          moduleConfig.addProperty("checkLastCaseGroup", "true");
75  
76          final String[] expectedViolation = {
77              "10:17: " + getCheckMessage(FallThroughCheck.class,
78                  FallThroughCheck.MSG_FALL_THROUGH_LAST),
79          };
80  
81          final List<String> expectedXpathQueries = Arrays.asList(
82              "/COMPILATION_UNIT/CLASS_DEF[./IDENT[@text='InputXpathFallThroughDefaultCase']]"
83                  + "/OBJBLOCK/METHOD_DEF["
84                  + "./IDENT[@text='methodFallThruCustomWords']]/SLIST/LITERAL_WHILE/SLIST"
85                  + "/LITERAL_SWITCH/CASE_GROUP[./SLIST/EXPR/POST_INC/IDENT[@text='i']]",
86              "/COMPILATION_UNIT/CLASS_DEF[./IDENT[@text='InputXpathFallThroughDefaultCase']]"
87                  + "/OBJBLOCK/METHOD_DEF["
88                  + "./IDENT[@text='methodFallThruCustomWords']]/SLIST/LITERAL_WHILE/SLIST"
89                  + "/LITERAL_SWITCH/CASE_GROUP/LITERAL_DEFAULT"
90          );
91  
92          runVerifications(moduleConfig, fileToProcess, expectedViolation,
93                  expectedXpathQueries);
94      }
95  }