BATCH-1135: added unit tests for StepListenerParser.

spring-batch-core/src/test/java/org/springframework/batch/core/configuration/xml/StepListenerParserTests.java

@@ -0,0 +1,92 @@
+/*
+ * Copyright 2002-2008 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.core.configuration.xml;
+
+import static org.junit.Assert.assertTrue;
+
+import java.lang.reflect.Field;
+import java.util.List;
+import java.util.Map;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.aop.framework.Advised;
+import org.springframework.batch.core.Step;
+import org.springframework.batch.core.StepExecutionListener;
+import org.springframework.batch.core.listener.CompositeStepExecutionListener;
+import org.springframework.batch.core.listener.StepExecutionListenerSupport;
+import org.springframework.batch.core.step.AbstractStep;
+import org.springframework.batch.core.step.tasklet.TaskletStep;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+/**
+ * @author Dan Garrette
+ * @since 2.0
+ */
+@ContextConfiguration
+@RunWith(SpringJUnit4ClassRunner.class)
+public class StepListenerParserTests {
+
+	@SuppressWarnings("unchecked")
+	@Test
+	public void testStepListenerParser() throws Exception {
+		ConfigurableApplicationContext ctx = new ClassPathXmlApplicationContext(
+				"org/springframework/batch/core/configuration/xml/StepListenerParserTests-context.xml");
+		Map<String, Object> beans = ctx.getBeansOfType(Step.class);
+		assertTrue(beans.containsKey("s1"));
+		Step s1 = (Step) ctx.getBean("s1");
+		assertTrue(s1 instanceof TaskletStep);
+
+		Field listenerField = AbstractStep.class.getDeclaredField("stepExecutionListener");
+		listenerField.setAccessible(true);
+		Object compositeListener = listenerField.get(s1);
+
+		Field compositeField = CompositeStepExecutionListener.class.getDeclaredField("list");
+		compositeField.setAccessible(true);
+		Object composite = compositeField.get(compositeListener);
+
+		Class cls = Class.forName("org.springframework.batch.core.listener.OrderedComposite");
+		Field listField = cls.getDeclaredField("list");
+		listField.setAccessible(true);
+		List<StepExecutionListener> list = (List<StepExecutionListener>) listField.get(composite);
+
+//		assertEquals(3, list.size());
+		boolean a = false;
+		boolean b = false;
+		boolean c = false;
+		for (StepExecutionListener listener : list) {
+			if (listener instanceof Advised) {
+				listener = (StepExecutionListener) ((Advised) listener).getTargetSource().getTarget();
+			}
+			if (listener instanceof TestListener) {
+				a = true;
+			}
+			if (listener instanceof StepExecutionListenerSupport) {
+				b = true;
+			}
+			if (listener instanceof CompositeStepExecutionListener) {
+				c = true;
+			}
+		}
+		assertTrue(a);
+		assertTrue(b);
+//		assertTrue(c);
+	}
+
+}