/*
    * 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.fail;
  import static org.supercsv.SuperCsvTestUtils.ANONYMOUS_CSVCONTEXT;
  
  import java.util.Arrays;
  import java.util.List;
  
  import org.junit.Before;
  import org.junit.Test;
  import org.supercsv.exception.SuperCsvConstraintViolationException;
  import org.supercsv.mock.IdentityTransform;
  
  /**
   * Tests the IsElementOf constraint.
   * 
   * @author James Bassett
   */
  public class IsElementOfTest {
  	
  	private IsElementOf processor;
  	private IsElementOf chainedProcessor;
  	private List<Object> input = Arrays.asList(new Object[] { "one", 2, 3.0, true, null });
  	
  	/**
  	 * Sets up the IsElementOf processors.
  	 */
  	@Before
  	public void setUp() {
  		processor = new IsElementOf(input);
  		chainedProcessor = new IsElementOf(input, new IdentityTransform());
  	}
  	
  	/**
  	 * Tests the IsElementOf constraint.
  	 */
  	@Test
  	public void testIsElementOf() {
  		
  		for( Object o : input ) {
  			processor.execute(o, ANONYMOUS_CSVCONTEXT);
  		}
  		
  		try {
  			processor.execute("not an element", ANONYMOUS_CSVCONTEXT);
  			fail("should have thrown SuperCsvConstraintViolationException");
  		}
  		catch(final SuperCsvConstraintViolationException e) {}
  		
  	}
  	
  	/**
  	 * Tests the IsElementOf constraint when chained to another processor.
  	 */
  	@Test
  	public void testChainedIsElementOf() {
  		
  		for( Object o : input ) {
  			chainedProcessor.execute(o, ANONYMOUS_CSVCONTEXT);
  		}
  		
  		try {
  			chainedProcessor.execute("not an element", ANONYMOUS_CSVCONTEXT);
  			fail("should have thrown SuperCsvConstraintViolationException");
  		}
  		catch(final SuperCsvConstraintViolationException e) {}
  		
  	}
  	
  	/**
  	 * Tests the 1 arg constructor with a null collection.
  	 */
  	@Test(expected = NullPointerException.class)
  	public void testConstructorWithNullCollection() {
  		new IsElementOf(null);
  	}
  	
  	/**
  	 * Tests the 2 arg constructor with a null collection.
  	 */
  	@Test(expected = NullPointerException.class)
  	public void testChainedConstructorWithNullCollection() {
  		new IsElementOf(null, new IdentityTransform());
  	}
 	
 }