checkstyle_test.xml

<?xml version="1.0"?>
<!--
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

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  distributed under the License is distributed on an "AS IS" BASIS,
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  See the License for the specific language governing permissions and
  limitations under the License.
-->
<!DOCTYPE module PUBLIC
          "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
          "https://checkstyle.org/dtds/configuration_1_3.dtd">

<module name="Checker">
  <property name="severity" value="error"/>

  <property name="fileExtensions" value="java, properties, xml"/>
  
  <property name="cacheFile" value="${checkstyle.log.dir}/checkstyle_test_cachefile"/>

  <module name="BeforeExecutionExclusionFileFilter">
    <property name="fileNamePattern" value="module\-info\.java$"/>
  </module>

  <!-- https://checkstyle.org/config_filters.html#SuppressionFilter -->
  <!-- this exists only because for some reason the comment filter does not seem to work for Semaphore -->
  <module name="SuppressionFilter">
    <property name="file" value="${checkstyle.suppressions}"
              default="checkstyle-suppressions.xml" />
    <property name="optional" value="false"/>
  </module>

  <module name="TreeWalker">
    <module name="SuppressWithNearbyCommentFilter">
       <property name="commentFormat" value="checkstyle: permit this import"/>
       <property name="checkFormat" value="IllegalImport"/>
       <property name="influenceFormat" value="0"/>
    </module>

    <module name="SuppressWithNearbyCommentFilter">
       <property name="commentFormat" value="checkstyle: permit this instantiation"/>
       <property name="checkFormat" value="IllegalInstantiation"/>
       <property name="influenceFormat" value="0"/>
    </module>

    <module name="IllegalImport">
      <property name="illegalPkgs" value="junit.framework"/>
      <property name="illegalClasses" value=""/>
    </module>
    <module name="IllegalInstantiation">
      <property name="classes" value=""/>
    </module>

    <module name="RegexpSinglelineJava">
      <property name="id" value="hardcodeTmpDirectoryUsage"/>
      <property name="format" value="(File|Directory)\(&quot;/tmp"/>
      <property name="ignoreComments" value="true"/>
      <property name="message" value="Please do not hardcode '/tmp' for test files and directories. Use Files.createTempDirectory to create a base test directory instead." />
    </module>

    <module name="RedundantImport"/>
    <module name="UnusedImports"/>
  </module>

</module>