RESOLVED - issue BATCH-466: Allow configurable ordering of Step/JobListeners

spring-batch-core/src/test/java/org/springframework/batch/core/listener/OrderedCompositeTests.java

@@ -0,0 +1,89 @@
+/*
+ * Copyright 2006-2007 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.core.listener;
+
+import java.util.Iterator;
+
+import org.springframework.core.Ordered;
+
+import junit.framework.TestCase;
+
+/**
+ * @author Dave Syer
+ *
+ */
+public class OrderedCompositeTests extends TestCase {
+	
+	private OrderedComposite list = new OrderedComposite();
+
+	/**
+	 * Test method for {@link org.springframework.batch.core.listener.OrderedComposite#setItems(java.lang.Object[])}.
+	 */
+	public void testSetItems() {
+		list.setItems(new String[] {"1", "2"});
+		Iterator iterator = list.iterator();
+		assertEquals("1", iterator.next());
+		assertEquals("2", iterator.next());
+	}
+
+	/**
+	 * Test method for {@link org.springframework.batch.core.listener.OrderedComposite#add(java.lang.Object)}.
+	 */
+	public void testAdd() {
+		list.setItems(new String[] {"1"});
+		list.add("3");
+		Iterator iterator = list.iterator();
+		assertEquals("1", iterator.next());
+		assertEquals("3", iterator.next());
+	}
+
+	/**
+	 * Test method for {@link org.springframework.batch.core.listener.OrderedComposite#add(java.lang.Object)}.
+	 */
+	public void testAddOrdered() {
+		list.setItems(new String[] {"1"});
+		list.add(new Ordered() {
+			public int getOrder() {
+				return 0;
+			}
+		});
+		Iterator iterator = list.iterator();
+		iterator.next();
+		assertEquals("1", iterator.next());
+	}
+
+	/**
+	 * Test method for {@link org.springframework.batch.core.listener.OrderedComposite#add(java.lang.Object)}.
+	 */
+	public void testAddMultipleOrdered() {
+		list.setItems(new String[] {"1"});
+		list.add(new Ordered() {
+			public int getOrder() {
+				return 1;
+			}
+		});
+		list.add(new Ordered() {
+			public int getOrder() {
+				return 0;
+			}
+		});
+		Iterator iterator = list.iterator();
+		assertEquals(0, ((Ordered) iterator.next()).getOrder());
+		assertEquals(1, ((Ordered) iterator.next()).getOrder());
+		assertEquals("1", iterator.next());
+	}
+
+}