Issue checkstyle#13345: Enable examples tests for AnonInnerLengthCheck

src/xdocs-examples/java/com/puppycrawl/tools/checkstyle/checks/sizes/AnonInnerLengthCheckExamplesTest.java

@@ -19,12 +19,13 @@
 
 package com.puppycrawl.tools.checkstyle.checks.sizes;
 
-import org.junit.jupiter.api.Disabled;
+import static com.puppycrawl.tools.checkstyle.checks.sizes.AnonInnerLengthCheck.MSG_KEY;
+
 import org.junit.jupiter.api.Test;
 
 import com.puppycrawl.tools.checkstyle.AbstractExamplesModuleTestSupport;
+import com.puppycrawl.tools.checkstyle.utils.CommonUtil;
 
-@Disabled("until https://github.com/checkstyle/checkstyle/issues/13345")
 public class AnonInnerLengthCheckExamplesTest extends AbstractExamplesModuleTestSupport {
     @Override
     protected String getPackageLocation() {
@@ -33,19 +34,16 @@ protected String getPackageLocation() {
 
     @Test
     public void testExample1() throws Exception {
-        final String[] expected = {
-
-        };
-
-        verifyWithInlineConfigParser(getPath("Example1.txt"), expected);
+        final String[] expected = CommonUtil.EMPTY_STRING_ARRAY;
+        verifyWithInlineConfigParser(getPath("Example1.java"), expected);
     }
 
     @Test
     public void testExample2() throws Exception {
         final String[] expected = {
-
+            "23:30: " + getCheckMessage(MSG_KEY, 9, 7),
         };
 
-        verifyWithInlineConfigParser(getPath("Example2.txt"), expected);
+        verifyWithInlineConfigParser(getPath("Example2.java"), expected);
     }
 }

src/xdocs-examples/resources/com/puppycrawl/tools/checkstyle/checks/sizes/anoninnerlength/Example1.java

@@ -0,0 +1,33 @@
+/*xml
+<module name="Checker">
+  <module name="TreeWalker">
+    <module name="AnonInnerLength"/>
+  </module>
+</module>
+*/
+package com.puppycrawl.tools.checkstyle.checks.sizes.anoninnerlength;
+
+// xdoc section -- start
+class Example1 {
+  void testMethod() {
+    Runnable shortAnonClass = new Runnable() {
+      @Override
+      public void run() {
+        System.out.println("Short anonymous class.");
+      }
+    };
+    shortAnonClass.run();
+
+    Runnable longAnonClass = new Runnable() {
+      @Override
+      public void run() {
+        System.out.println("This is a lengthy anonymous class.");
+        System.out.println("It has too many lines of code.");
+        System.out.println("Exceeding the length limit.");
+        System.out.println("This would trigger the AnonInnerLength rule.");
+      }
+    };
+    longAnonClass.run();
+  }
+}
+// xdoc section -- end

src/xdocs-examples/resources/com/puppycrawl/tools/checkstyle/checks/sizes/anoninnerlength/Example2.java

@@ -0,0 +1,35 @@
+/*xml
+<module name="Checker">
+  <module name="TreeWalker">
+    <module name="AnonInnerLength">
+      <property name="max" value="7"/>
+    </module>
+  </module>
+</module>
+*/
+package com.puppycrawl.tools.checkstyle.checks.sizes.anoninnerlength;
+
+// xdoc section -- start
+class Example2 {
+  void testMethod() {
+    Runnable shortAnonClass = new Runnable() {
+      @Override
+      public void run() {
+        System.out.println("Short anonymous class.");
+      }
+    };
+    shortAnonClass.run();
+    // violation below, 'Anonymous inner class length is 9 lines (max allowed is 7)'
+    Runnable longAnonClass = new Runnable() {
+      @Override
+      public void run() {
+        System.out.println("This is a lengthy anonymous class.");
+        System.out.println("It has too many lines of code.");
+        System.out.println("Exceeding the length limit.");
+        System.out.println("This would trigger the AnonInnerLength rule.");
+      }
+    };
+    longAnonClass.run();
+  }
+}
+// xdoc section -- end

src/xdocs/checks/sizes/anoninnerlength.xml

@@ -45,27 +45,77 @@
 
       <subsection name="Examples" id="Examples">
         <p id="Example1-config">
-          To configure the check to accept anonymous classes with up to 20 lines:
+          To configure the check to accept anonymous classes with up to 20 lines by default:
         </p>
         <source>
 &lt;module name=&quot;Checker&quot;&gt;
   &lt;module name=&quot;TreeWalker&quot;&gt;
     &lt;module name=&quot;AnonInnerLength&quot;/&gt;
   &lt;/module&gt;
 &lt;/module&gt;
+        </source>
+        <p id="Example1-code">Example1:</p>
+        <source>
+class Example1 {
+  void testMethod() {
+    Runnable shortAnonClass = new Runnable() {
+      @Override
+      public void run() {
+        System.out.println(&quot;Short anonymous class.&quot;);
+      }
+    };
+    shortAnonClass.run();
+
+    Runnable longAnonClass = new Runnable() {
+      @Override
+      public void run() {
+        System.out.println(&quot;This is a lengthy anonymous class.&quot;);
+        System.out.println(&quot;It has too many lines of code.&quot;);
+        System.out.println(&quot;Exceeding the length limit.&quot;);
+        System.out.println(&quot;This would trigger the AnonInnerLength rule.&quot;);
+      }
+    };
+    longAnonClass.run();
+  }
+}
         </source>
         <p id="Example2-config">
-          To configure the check to accept anonymous classes with up to 60 lines:
+          To configure the check to accept anonymous classes with up to 7 lines:
         </p>
         <source>
 &lt;module name=&quot;Checker&quot;&gt;
   &lt;module name=&quot;TreeWalker&quot;&gt;
     &lt;module name=&quot;AnonInnerLength&quot;&gt;
-      &lt;property name=&quot;max&quot; value=&quot;60&quot;/&gt;
+      &lt;property name=&quot;max&quot; value=&quot;7&quot;/&gt;
     &lt;/module&gt;
   &lt;/module&gt;
 &lt;/module&gt;
         </source>
+        <p id="Example2-code">Example2:</p>
+        <source>
+class Example2 {
+  void testMethod() {
+    Runnable shortAnonClass = new Runnable() {
+      @Override
+      public void run() {
+        System.out.println(&quot;Short anonymous class.&quot;);
+      }
+    };
+    shortAnonClass.run();
+    // violation below, 'Anonymous inner class length is 9 lines (max allowed is 7)'
+    Runnable longAnonClass = new Runnable() {
+      @Override
+      public void run() {
+        System.out.println(&quot;This is a lengthy anonymous class.&quot;);
+        System.out.println(&quot;It has too many lines of code.&quot;);
+        System.out.println(&quot;Exceeding the length limit.&quot;);
+        System.out.println(&quot;This would trigger the AnonInnerLength rule.&quot;);
+      }
+    };
+    longAnonClass.run();
+  }
+}
+        </source>
       </subsection>
 
       <subsection name="Example of Usage" id="Example_of_Usage">

src/xdocs/checks/sizes/anoninnerlength.xml.template

@@ -33,21 +33,33 @@
 
       <subsection name="Examples" id="Examples">
         <p id="Example1-config">
-          To configure the check to accept anonymous classes with up to 20 lines:
+          To configure the check to accept anonymous classes with up to 20 lines by default:
         </p>
         <macro name="example">
           <param name="path"
-                 value="resources/com/puppycrawl/tools/checkstyle/checks/sizes/anoninnerlength/Example1.txt"/>
+                 value="resources/com/puppycrawl/tools/checkstyle/checks/sizes/anoninnerlength/Example1.java"/>
           <param name="type" value="config"/>
         </macro>
+        <p id="Example1-code">Example1:</p>
+        <macro name="example">
+          <param name="path"
+                 value="resources/com/puppycrawl/tools/checkstyle/checks/sizes/anoninnerlength/Example1.java"/>
+          <param name="type" value="code"/>
+        </macro>
         <p id="Example2-config">
-          To configure the check to accept anonymous classes with up to 60 lines:
+          To configure the check to accept anonymous classes with up to 7 lines:
         </p>
         <macro name="example">
           <param name="path"
-                 value="resources/com/puppycrawl/tools/checkstyle/checks/sizes/anoninnerlength/Example2.txt"/>
+                 value="resources/com/puppycrawl/tools/checkstyle/checks/sizes/anoninnerlength/Example2.java"/>
           <param name="type" value="config"/>
         </macro>
+        <p id="Example2-code">Example2:</p>
+        <macro name="example">
+          <param name="path"
+                 value="resources/com/puppycrawl/tools/checkstyle/checks/sizes/anoninnerlength/Example2.java"/>
+          <param name="type" value="code"/>
+        </macro>
       </subsection>
 
       <subsection name="Example of Usage" id="Example_of_Usage">