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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.CovariantEqualsCheck.MSG_KEY;
24  
25  import org.junit.jupiter.api.Test;
26  
27  import com.puppycrawl.tools.checkstyle.AbstractModuleTestSupport;
28  
29  public class CovariantEqualsCheckTest
30      extends AbstractModuleTestSupport {
31  
32      @Override
33      protected String getPackageLocation() {
34          return "com/puppycrawl/tools/checkstyle/checks/coding/covariantequals";
35      }
36  
37      @Test
38      public void testDefaultOne()
39              throws Exception {
40          final String[] expected = {
41              "17:24: " + getCheckMessage(MSG_KEY),
42              "36:20: " + getCheckMessage(MSG_KEY),
43              "70:20: " + getCheckMessage(MSG_KEY),
44              "84:28: " + getCheckMessage(MSG_KEY),
45          };
46          verifyWithInlineConfigParser(
47                  getPath("InputCovariantEqualsOne.java"), expected);
48      }
49  
50      @Test
51      public void testDefaultTwo()
52              throws Exception {
53          final String[] expected = {
54              "41:20: " + getCheckMessage(MSG_KEY),
55              "45:9: " + getCheckMessage(MSG_KEY),
56          };
57          verifyWithInlineConfigParser(
58                  getPath("InputCovariantEqualsTwo.java"), expected);
59      }
60  
61      @Test
62      public void testCovariantEqualsRecords()
63              throws Exception {
64          final String[] expected = {
65              "13:24: " + getCheckMessage(MSG_KEY),
66              "29:28: " + getCheckMessage(MSG_KEY),
67          };
68          verifyWithInlineConfigParser(
69                  getNonCompilablePath("InputCovariantEqualsRecords.java"), expected);
70      }
71  
72      @Test
73      public void testTokensNotNull() {
74          final CovariantEqualsCheck check = new CovariantEqualsCheck();
75          assertWithMessage("Acceptable tokens should not be null")
76                  .that(check.getAcceptableTokens())
77                  .isNotNull();
78          assertWithMessage("Default tokens should not be null")
79                  .that(check.getDefaultTokens())
80                  .isNotNull();
81          assertWithMessage("Required tokens should not be null")
82                  .that(check.getRequiredTokens())
83                  .isNotNull();
84      }
85  
86  }