View Javadoc
1   ///////////////////////////////////////////////////////////////////////////////////////////////
2   // checkstyle: Checks Java source code and other text files for adherence to a set of rules.
3   // Copyright (C) 2001-2026 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.puppycrawl.tools.checkstyle.checks.coding.UnusedLocalVariableCheck.MSG_UNUSED_LOCAL_VARIABLE;
23  import static com.puppycrawl.tools.checkstyle.checks.coding.UnusedLocalVariableCheck.MSG_UNUSED_NAMED_LOCAL_VARIABLE;
24  
25  import org.junit.jupiter.api.Test;
26  
27  import com.puppycrawl.tools.checkstyle.AbstractExamplesModuleTestSupport;
28  
29  public class UnusedLocalVariableCheckExamplesTest extends AbstractExamplesModuleTestSupport {
30  
31      @Override
32      public String getPackageLocation() {
33          return "com/puppycrawl/tools/checkstyle/checks/coding/unusedlocalvariable";
34      }
35  
36      @Test
37      public void testExample1() throws Exception {
38          final String[] expected = {
39              "16:5: " + getCheckMessage(MSG_UNUSED_NAMED_LOCAL_VARIABLE, "k"),
40              "26:5: " + getCheckMessage(MSG_UNUSED_NAMED_LOCAL_VARIABLE, "arr"),
41              "32:5: " + getCheckMessage(MSG_UNUSED_NAMED_LOCAL_VARIABLE, "s"),
42              "39:5: " + getCheckMessage(MSG_UNUSED_NAMED_LOCAL_VARIABLE, "s"),
43              "49:10: " + getCheckMessage(MSG_UNUSED_NAMED_LOCAL_VARIABLE, "i"),
44          };
45  
46          verifyWithInlineConfigParser(
47                  getNonCompilablePath("Example1.java"), expected);
48      }
49  
50      @Test
51      public void testExample2() throws Exception {
52          final String[] expected = {
53              "17:5: " + getCheckMessage(MSG_UNUSED_LOCAL_VARIABLE, "k"),
54              "27:5: " + getCheckMessage(MSG_UNUSED_LOCAL_VARIABLE, "arr"),
55              "33:5: " + getCheckMessage(MSG_UNUSED_LOCAL_VARIABLE, "s"),
56              "34:5: " + getCheckMessage(MSG_UNUSED_LOCAL_VARIABLE, "_"),
57              "40:5: " + getCheckMessage(MSG_UNUSED_LOCAL_VARIABLE, "s"),
58              "50:10: " + getCheckMessage(MSG_UNUSED_LOCAL_VARIABLE, "i"),
59              "52:10: " + getCheckMessage(MSG_UNUSED_LOCAL_VARIABLE, "_"),
60          };
61  
62          verifyWithInlineConfigParser(
63                  getNonCompilablePath("Example2.java"), expected);
64      }
65  
66      @Test
67      public void testExample3() throws Exception {
68          final String[] expected = {
69              "17:31: " + getCheckMessage(MSG_UNUSED_NAMED_LOCAL_VARIABLE, "str"),
70              "26:19: " + getCheckMessage(MSG_UNUSED_NAMED_LOCAL_VARIABLE, "c"),
71          };
72          verifyWithInlineConfigParser(
73                  getNonCompilablePath("Example3.java"), expected);
74      }
75  
76      @Test
77      public void testExample4() throws Exception {
78          final String[] expected = {
79              "19:31: " + getCheckMessage(MSG_UNUSED_LOCAL_VARIABLE, "str"),
80          };
81          verifyWithInlineConfigParser(
82                  getNonCompilablePath("Example4.java"), expected);
83      }
84  
85  }