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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 com.puppycrawl.tools.checkstyle.checks.coding;
21  
22  import static com.google.common.truth.Truth.assertWithMessage;
23  import static com.puppycrawl.tools.checkstyle.checks.coding.PatternVariableAssignmentCheck.MSG_KEY;
24  
25  import org.junit.jupiter.api.Test;
26  
27  import com.puppycrawl.tools.checkstyle.AbstractModuleTestSupport;
28  import com.puppycrawl.tools.checkstyle.api.TokenTypes;
29  
30  public class PatternVariableAssignmentCheckTest extends AbstractModuleTestSupport {
31  
32      @Override
33      protected String getPackageLocation() {
34          return "com/puppycrawl/tools/checkstyle/checks/coding/patternvariableassignment";
35      }
36  
37      @Test
38      public void testGetAcceptableTokens() {
39          final PatternVariableAssignmentCheck patternVariableAssignmentCheckObj =
40              new PatternVariableAssignmentCheck();
41          final int[] actual = patternVariableAssignmentCheckObj.getAcceptableTokens();
42          final int[] expected = {
43              TokenTypes.LITERAL_INSTANCEOF,
44          };
45          assertWithMessage("Default acceptable tokens are invalid")
46              .that(actual)
47              .isEqualTo(expected);
48      }
49  
50      @Test
51      public void testPatternVariableAssignmentCheck() throws Exception {
52  
53          final String[] expected = {
54              "27:13: " + getCheckMessage(MSG_KEY, "s"),
55              "31:13: " + getCheckMessage(MSG_KEY, "x"),
56              "33:13: " + getCheckMessage(MSG_KEY, "y"),
57              "37:13: " + getCheckMessage(MSG_KEY, "c"),
58              "41:13: " + getCheckMessage(MSG_KEY, "c"),
59              "45:13: " + getCheckMessage(MSG_KEY, "c"),
60              "50:21: " + getCheckMessage(MSG_KEY, "d"),
61              "67:14: " + getCheckMessage(MSG_KEY, "f"),
62          };
63  
64          verifyWithInlineXmlConfig(getNonCompilablePath(
65              "InputPatternVariableAssignmentCheck1.java"), expected);
66      }
67  
68      @Test
69      public void testPatternVariableAssignmentCheck2() throws Exception {
70  
71          final String[] expected = {
72              "56:17: " + getCheckMessage(MSG_KEY, "parent"),
73          };
74  
75          verifyWithInlineXmlConfig(getNonCompilablePath(
76              "InputPatternVariableAssignmentCheck2.java"), expected);
77      }
78  
79  }