/*
 * Copyright 2008 the original author or authors.
 *
 * 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.springframework.batch.sample.domain.trade.internal;

import static org.junit.Assert.assertEquals;

import org.junit.Test;

/**
 * Tests for {@link GeneratingTradeItemReader}.
 * 
 * @author Robert Kasanicky
 */
public class GeneratingItemReaderTests {

	private GeneratingTradeItemReader reader = new GeneratingTradeItemReader();
	
	/*
	 * Generates a given number of not-null records,
	 * consecutive calls return null.
	 */
	@Test
	public void testRead() throws Exception {
		int counter = 0;
		int limit = 10;
		reader.setLimit(limit);
		
		while (reader.read() != null) {
			counter++;
		}
		
		assertEquals(null, reader.read());
		assertEquals(limit, counter);
		assertEquals(counter, reader.getCounter());
	}
}