/*
    * 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
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  package org.apache.maven.plugins.checkstyle;
  
  import java.util.List;
  
  import junit.framework.TestCase;
  
  public class RuleUtilTest extends TestCase {
      private static final String CHECKSTYLE_PACKAGE = "com.puppycrawl.tools.checkstyle.checks";
  
      public void testGetName() {
          assertEquals("FinalParameters", RuleUtil.getName(CHECKSTYLE_PACKAGE + ".FinalParameters"));
          assertEquals("FinalParameters", RuleUtil.getName(CHECKSTYLE_PACKAGE + ".FinalParametersCheck"));
          assertNull(RuleUtil.getName((String) null));
      }
  
      public void testGetCategory() {
          assertEquals("misc", RuleUtil.getCategory(CHECKSTYLE_PACKAGE + ".FinalParametersCheck"));
          assertEquals("test", RuleUtil.getCategory(CHECKSTYLE_PACKAGE + ".test.FinalParametersCheck"));
          assertEquals("extension", RuleUtil.getCategory("test.FinalParametersCheck"));
          assertEquals("extension", RuleUtil.getCategory("copyright"));
          assertNull(RuleUtil.getCategory((String) null));
      }
  
      public void testMatcher() {
          String[] specs = ("misc, test, extension, Header, " + CHECKSTYLE_PACKAGE + ".test2").split(",");
          String[] eventSrcNames = new String[] {
              CHECKSTYLE_PACKAGE + ".FinalParametersCheck",
              CHECKSTYLE_PACKAGE + ".test.FinalParametersCheck",
              "test.FinalParametersCheck",
              CHECKSTYLE_PACKAGE + ".whitespace.HeaderCheck",
              CHECKSTYLE_PACKAGE + ".test2.FinalParametersCheck"
          };
  
          List<RuleUtil.Matcher> matchers = RuleUtil.parseMatchers(specs);
  
          for (int i = 0; i < matchers.size(); i++) {
              String spec = specs[i];
              RuleUtil.Matcher matcher = matchers.get(i);
              for (int j = 0; j < matchers.size(); j++) {
                  String eventSrcName = eventSrcNames[j];
                  assertEquals(
                          spec + " should" + ((i == j) ? " " : " not ") + "match " + eventSrcName,
                          i == j,
                          matcher.match(eventSrcName));
              }
          }
      }
  
      public void testMatcherWithBlankStrings() {
          String[] specs = ("   ,,foo, ").split(",");
  
          List<RuleUtil.Matcher> matchers = RuleUtil.parseMatchers(specs);
  
          assertEquals(1, matchers.size());
          assertTrue(matchers.get(0).match(CHECKSTYLE_PACKAGE + ".foo.SomeCheck"));
      }
  }