Add tests for exhausted read in database readers

spring-batch-infrastructure/src/test/java/org/springframework/batch/item/database/AbstractDatabaseItemStreamItemReaderTests.java

@@ -1,11 +1,16 @@
 package org.springframework.batch.item.database;
 
+import static org.junit.Assert.assertEquals;
+
 import javax.sql.DataSource;
 
 import org.springframework.batch.item.AbstractItemStreamItemReaderTests;
+import org.springframework.batch.item.ItemReader;
+import org.springframework.batch.item.sample.Foo;
 import org.springframework.context.support.ClassPathXmlApplicationContext;
 import org.junit.Before;
 import org.junit.After;
+import org.junit.Test;
 
 public abstract class AbstractDatabaseItemStreamItemReaderTests extends AbstractItemStreamItemReaderTests {
 
@@ -23,6 +28,18 @@ public abstract class AbstractDatabaseItemStreamItemReaderTests extends Abstract
 		ctx.close();
 	}
 
+	@Test
+	public void testReadToExhaustion() throws Exception {
+		ItemReader<Foo> reader = getItemReader();
+		pointToEmptyInput(reader);
+		int count = 0;
+		Foo item = new Foo();
+		while (count++<100 && item!=null) {
+			item = reader.read();
+		}
+		assertEquals(2, count);
+	}
+
 	protected DataSource getDataSource() {
 		return (DataSource) ctx.getBean("dataSource");
 	}

spring-batch-infrastructure/src/test/java/org/springframework/batch/item/database/IbatisPagingItemReaderCommonTests.java

@@ -1,18 +1,19 @@
 package org.springframework.batch.item.database;
 
-import org.junit.runner.RunWith;
 import org.junit.internal.runners.JUnit4ClassRunner;
-import org.springframework.batch.item.sample.Foo;
-import org.springframework.batch.item.ItemReader;
+import org.junit.runner.RunWith;
 import org.springframework.batch.item.ExecutionContext;
-import org.springframework.orm.ibatis.SqlMapClientFactoryBean;
+import org.springframework.batch.item.ItemReader;
+import org.springframework.batch.item.sample.Foo;
 import org.springframework.core.io.ClassPathResource;
+import org.springframework.orm.ibatis.SqlMapClientFactoryBean;
+
 import com.ibatis.sqlmap.client.SqlMapClient;
 
 @SuppressWarnings("unchecked")
 @RunWith(JUnit4ClassRunner.class)
 public class IbatisPagingItemReaderCommonTests extends AbstractDatabaseItemStreamItemReaderTests {
-
+	
 	protected ItemReader<Foo> getItemReader() throws Exception {
 		SqlMapClientFactoryBean factory = new SqlMapClientFactoryBean();
 		factory.setConfigLocation(new ClassPathResource("ibatis-config.xml", getClass()));