// Copyright 2010 The Apache Software Foundation
   //
   // Licensed 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.tapestry5.func;
  
  import java.util.Arrays;
  import java.util.List;
  
  import org.testng.Assert;
  
  public class BaseFuncTest extends Assert
  {
  
      protected Mapper<String, Integer> stringToLength = new Mapper<String, Integer>()
      {
          @Override
          public Integer map(String input)
          {
              return input.length();
          }
      };
  
      protected Mapper<Integer, Boolean> toEven = new Mapper<Integer, Boolean>()
      {
          @Override
          public Boolean map(Integer input)
          {
              return evenp.accept(input);
          }
      };
  
      protected Predicate<Number> evenp = new Predicate<Number>()
      {
          @Override
          public boolean accept(Number object)
          {
              return object.longValue() % 2 == 0;
          };
      };
  
      protected Flow<Integer> filteredEmpty = F.flow(1, 3, 5, 7).filter(evenp);
  
      protected <T> void assertFlowValues(Flow<T> actual, T... expected)
      {
          assertListsEquals(actual.toList(), expected);
      }
  
      protected <T> void assertListsEquals(List<T> actual, T... expected)
      {
          assertEquals(actual, Arrays.asList(expected));
      }
  
      protected void unreachable()
      {
          throw new RuntimeException("Should not be reachable.");
      }
  
  }