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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) 2001-2026 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.javadoc;
21  
22  import static com.google.common.truth.Truth.assertWithMessage;
23  import static com.puppycrawl.tools.checkstyle.checks.javadoc.JavadocPackageCheck.MSG_LEGACY_PACKAGE_HTML;
24  import static com.puppycrawl.tools.checkstyle.checks.javadoc.JavadocPackageCheck.MSG_PACKAGE_INFO;
25  
26  import java.io.File;
27  import java.util.Collections;
28  import java.util.List;
29  
30  import org.junit.jupiter.api.Test;
31  
32  import com.puppycrawl.tools.checkstyle.AbstractModuleTestSupport;
33  import com.puppycrawl.tools.checkstyle.api.CheckstyleException;
34  import com.puppycrawl.tools.checkstyle.api.FileText;
35  import com.puppycrawl.tools.checkstyle.internal.utils.TestUtil;
36  import com.puppycrawl.tools.checkstyle.utils.CommonUtil;
37  
38  public class JavadocPackageCheckTest
39      extends AbstractModuleTestSupport {
40  
41      @Override
42      public String getPackageLocation() {
43          return "com/puppycrawl/tools/checkstyle/checks/javadoc/javadocpackage";
44      }
45  
46      @Test
47      public void testMissing() throws Exception {
48          final String[] expected = {
49              "1: " + getCheckMessage(MSG_PACKAGE_INFO),
50          };
51          verifyWithInlineConfigParser(
52              getPath("InputJavadocPackageBadCls.java"),
53              expected);
54      }
55  
56      @Test
57      public void testMissingWithAllowLegacy() throws Exception {
58          final String[] expected = {
59              "1: " + getCheckMessage(MSG_PACKAGE_INFO),
60          };
61          verifyWithInlineConfigParser(
62              getPath("InputJavadocPackageBadCls2.java"),
63              expected);
64      }
65  
66      @Test
67      public void testWithMultipleFiles() throws Exception {
68          final String[] expected = {
69              "1: " + getCheckMessage(MSG_PACKAGE_INFO),
70          };
71          verifyWithInlineConfigParser(getPath("InputJavadocPackageNoJavadoc.java"),
72              getPath("InputJavadocPackageBadTag.java"), expected);
73      }
74  
75      @Test
76      public void testBoth() throws Exception {
77          final String[] expected = {
78              "1: " + getCheckMessage(MSG_LEGACY_PACKAGE_HTML),
79          };
80          verifyWithInlineConfigParser(
81              getPath("bothfiles" + File.separator + "InputJavadocPackageBothIgnored.java"),
82              expected);
83      }
84  
85      @Test
86      public void testHtmlDisallowed() throws Exception {
87          final String[] expected = {
88              "1: " + getCheckMessage(MSG_PACKAGE_INFO),
89          };
90          verifyWithInlineConfigParser(
91              getPath("packagehtml" + File.separator + "InputJavadocPackageHtmlIgnored.java"),
92              expected);
93      }
94  
95      @Test
96      public void testHtmlAllowed() throws Exception {
97          final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
98          verifyWithInlineConfigParser(
99              getPath("packagehtml" + File.separator + "InputJavadocPackageHtmlIgnored2.java"),
100             getPath("noparentfile" + File.separator + "package-info.java"),
101             expected);
102     }
103 
104     @Test
105     public void testAnnotation() throws Exception {
106         final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
107         verifyWithInlineConfigParser(
108             getPath("annotation"
109                     + File.separator + "package-info.java"), expected);
110     }
111 
112     /**
113      * Using direct call to check here because there is no other way
114      * to reproduce exception with invalid canonical path.
115      */
116     @Test
117     public void testCheckstyleExceptionIfFailedToGetCanonicalPathToFile() {
118         final JavadocPackageCheck check = new JavadocPackageCheck();
119         final File fileWithInvalidPath = new File("\u0000\u0000\u0000");
120         final FileText mockFileText = new FileText(fileWithInvalidPath, Collections.emptyList());
121         final String expectedExceptionMessage =
122                 "Exception while getting canonical path to file " + fileWithInvalidPath.getPath();
123         final CheckstyleException exc =
124                 TestUtil.getExpectedThrowable(
125                     CheckstyleException.class, () -> {
126                         check.processFiltered(
127                             fileWithInvalidPath, mockFileText);
128                     });
129         assertWithMessage(
130                 "Invalid exception message. Expected: %s",
131                 expectedExceptionMessage)
132             .that(exc.getMessage())
133             .isEqualTo(expectedExceptionMessage);
134     }
135 
136     @Test
137     public void testNonJava() throws Exception {
138         final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
139         verifyWithInlineConfigParser(
140             getPath("InputJavadocPackageNotJava.txt"),
141             expected);
142     }
143 
144     @Test
145     public void testWithFileWithoutParent() throws Exception {
146         final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
147         verifyWithInlineConfigParser(
148                 getPath("annotation" + File.separator + "package-info.java"),
149                 expected);
150     }
151 
152     @Test
153     public void testModuleInfoFile() throws Exception {
154         final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
155         verifyWithInlineConfigParser(
156                 getNonCompilablePath("module-info/default/module-info.java"),
157                 expected);
158     }
159 
160     @Test
161     public void testModuleInfoDoesNotSkipSiblingJavaFile() throws Exception {
162         final List<String> expectedFromModuleInfo = List.of();
163         final List<String> expectedFromSibling = List.of(
164                 "1: " + getCheckMessage(MSG_PACKAGE_INFO));
165         verifyWithInlineConfigParser(
166                 getNonCompilablePath("module-info/withfile/module-info.java"),
167                 getNonCompilablePath(
168                         "module-info/withfile/InputJavadocPackageModuleInfoWithFile.java"),
169                 expectedFromModuleInfo,
170                 expectedFromSibling);
171     }
172 
173 }