///////////////////////////////////////////////////////////////////////////////////////////////
   // checkstyle: Checks Java source code and other text files for adherence to a set of rules.
   // Copyright (C) 2001-2024 the original author or authors.
   //
   // This library is free software; you can redistribute it and/or
   // modify it under the terms of the GNU Lesser General Public
   // License as published by the Free Software Foundation; either
   // version 2.1 of the License, or (at your option) any later version.
   //
  // This library is distributed in the hope that it will be useful,
  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  // Lesser General Public License for more details.
  //
  // You should have received a copy of the GNU Lesser General Public
  // License along with this library; if not, write to the Free Software
  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  ///////////////////////////////////////////////////////////////////////////////////////////////
  
  package org.checkstyle.suppressionxpathfilter;
  
  import java.io.File;
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.List;
  
  import org.junit.jupiter.api.Test;
  
  import com.puppycrawl.tools.checkstyle.DefaultConfiguration;
  import com.puppycrawl.tools.checkstyle.checks.coding.MissingNullCaseInSwitchCheck;
  
  public class XpathRegressionMissingNullCaseInSwitchTest
          extends AbstractXpathTestSupport {
  
      @Override
      protected String getCheckName() {
          return MissingNullCaseInSwitchCheck.class.getSimpleName();
      }
  
      @Test
      public void testSimple() throws Exception {
          final File fileToProcess =
                  new File(getNonCompilablePath(
                          "InputXpathMissingNullCaseInSwitchSimple.java"));
  
          final DefaultConfiguration moduleConfig =
                  createModuleConfig(MissingNullCaseInSwitchCheck.class);
          final String[] expectedViolation = {
              "8:9: " + getCheckMessage(MissingNullCaseInSwitchCheck.class,
                      MissingNullCaseInSwitchCheck.MSG_KEY),
          };
  
          final List<String> expectedXpathQueries = Collections.singletonList(
                  "/COMPILATION_UNIT/CLASS_DEF[./IDENT"
                          + "[@text='InputXpathMissingNullCaseInSwitchSimple']]"
                          + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='test']]/SLIST/LITERAL_SWITCH"
          );
          runVerifications(moduleConfig, fileToProcess, expectedViolation, expectedXpathQueries);
      }
  
      @Test
      public void testNestedExpression() throws Exception {
          final File fileToProcess =
                  new File(getNonCompilablePath("InputXpathMissingNullCaseInSwitchNested.java"));
  
          final DefaultConfiguration moduleConfig =
                  createModuleConfig(MissingNullCaseInSwitchCheck.class);
          final String[] expectedViolation = {
              "11:25: " + getCheckMessage(MissingNullCaseInSwitchCheck.class,
                      MissingNullCaseInSwitchCheck.MSG_KEY),
          };
  
          final List<String> expectedXpathQueries = Arrays.asList(
                  "/COMPILATION_UNIT/CLASS_DEF[./IDENT"
                          + "[@text='InputXpathMissingNullCaseInSwitchNested']]"
                          + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='test']]/SLIST/VARIABLE_DEF"
                          + "[./IDENT[@text='x']]/ASSIGN/EXPR/LITERAL_SWITCH/SWITCH_RULE/SLIST"
                          + "/VARIABLE_DEF[./IDENT[@text='y']]/ASSIGN/EXPR",
                  "/COMPILATION_UNIT/CLASS_DEF[./IDENT"
                          + "[@text='InputXpathMissingNullCaseInSwitchNested']]"
                          + "/OBJBLOCK/METHOD_DEF[./IDENT[@text='test']]/SLIST/VARIABLE_DEF"
                          + "[./IDENT[@text='x']]/ASSIGN/EXPR/LITERAL_SWITCH"
                          + "/SWITCH_RULE/SLIST/VARIABLE_DEF"
                          + "[./IDENT[@text='y']]/ASSIGN/EXPR/LITERAL_SWITCH"
          );
          runVerifications(moduleConfig, fileToProcess, expectedViolation, expectedXpathQueries);
      }
  }