/*
    * Copyright 2007 Kasper B. Graversen
    * 
    * 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.supercsv.cellprocessor.constraint;
  
  import static org.junit.Assert.assertEquals;
  import static org.supercsv.SuperCsvTestUtils.ANONYMOUS_CSVCONTEXT;
  
  import java.util.HashSet;
  import java.util.Set;
  
  import org.junit.Before;
  import org.junit.Test;
  import org.supercsv.cellprocessor.ift.CellProcessor;
  import org.supercsv.exception.SuperCsvCellProcessorException;
  import org.supercsv.exception.SuperCsvConstraintViolationException;
  import org.supercsv.mock.IdentityTransform;
  
  /**
   * Tests the IsIncludedIn constraint.
   * 
   * @author Dominique De Vito
   * @author James Bassett
   */
  public class IsIncludedInTest {
  	
  	private static final Set<Object> VALUE_SET = new HashSet<Object>();
  	
  	private static final Integer ONE = 1;
  	private static final String TWO = "Two";
  	private static final Double THREE = 3.0;
  	
  	static {
  		VALUE_SET.add(ONE);
  		VALUE_SET.add(TWO);
  		VALUE_SET.add(THREE);
  	}
  	
  	private CellProcessor processor;
  	private CellProcessor processor2;
  	private CellProcessor processorChain;
  	private CellProcessor processorChain2;
  	
  	/**
  	 * Sets up the processors for the test using all constructor combinations.
  	 */
  	@Before
  	public void setUp() {
  		processor = new IsIncludedIn(VALUE_SET);
  		processor2 = new IsIncludedIn(VALUE_SET.toArray());
  		processorChain = new IsIncludedIn(VALUE_SET, new IdentityTransform());
  		processorChain2 = new IsIncludedIn(VALUE_SET.toArray(), new IdentityTransform());
  	}
  	
  	/**
  	 * Tests unchained/chained execution with values from the Set.
  	 */
  	@Test
  	public void testValidInput() {
  		assertEquals(ONE, processor.execute(ONE, ANONYMOUS_CSVCONTEXT));
  		assertEquals(ONE, processor2.execute(ONE, ANONYMOUS_CSVCONTEXT));
  		assertEquals(ONE, processorChain.execute(ONE, ANONYMOUS_CSVCONTEXT));
  		assertEquals(ONE, processorChain2.execute(ONE, ANONYMOUS_CSVCONTEXT));
  		
  		assertEquals(TWO, processor.execute(TWO, ANONYMOUS_CSVCONTEXT));
  		assertEquals(TWO, processor2.execute(TWO, ANONYMOUS_CSVCONTEXT));
  		assertEquals(TWO, processorChain.execute(TWO, ANONYMOUS_CSVCONTEXT));
  		assertEquals(TWO, processorChain2.execute(TWO, ANONYMOUS_CSVCONTEXT));
  		
  		assertEquals(THREE, processor.execute(THREE, ANONYMOUS_CSVCONTEXT));
  		assertEquals(THREE, processor2.execute(THREE, ANONYMOUS_CSVCONTEXT));
  		assertEquals(THREE, processorChain.execute(THREE, ANONYMOUS_CSVCONTEXT));
  		assertEquals(THREE, processorChain2.execute(THREE, ANONYMOUS_CSVCONTEXT));
  		
  	}
  	
  	/**
  	 * Tests execution with a value that's not in the Set (should throw an Exception).
  	 */
  	@Test(expected = SuperCsvConstraintViolationException.class)
  	public void testWithInvalidInput() {
  		processor.execute(4, ANONYMOUS_CSVCONTEXT);
  	}
  	
  	/**
  	 * Tests execution with a null input (should throw an Exception).
  	 */
 	@Test(expected = SuperCsvCellProcessorException.class)
 	public void testWithNull() {
 		processor.execute(null, ANONYMOUS_CSVCONTEXT);
 	}
 	
 	/**
 	 * Tests construction with a null array (should throw an Exception).
 	 */
 	@Test(expected = NullPointerException.class)
 	public void testConstructionWithNullArray() {
 		new IsIncludedIn((Object[]) null);
 	}
 	
 	/**
 	 * Tests construction with an empty array (should throw an Exception).
 	 */
 	@Test(expected = IllegalArgumentException.class)
 	public void testConstructionWithEmptyArray() {
 		new IsIncludedIn(new Object[] {});
 	}
 	
 	/**
 	 * Tests construction with a null Set (should throw an Exception).
 	 */
 	@Test(expected = NullPointerException.class)
 	public void testConstructionWithNullSet() {
 		new IsIncludedIn((Set<Object>) null);
 	}
 	
 	/**
 	 * Tests construction with an empty Set (should throw an Exception).
 	 */
 	@Test(expected = IllegalArgumentException.class)
 	public void testConstructionWithEmptySet() {
 		new IsIncludedIn(new HashSet<Object>());
 	}
 	
 }