Added FilterParserTests (INT-377, INT-308).

org.springframework.integration/src/test/java/org/springframework/integration/config/FilterParserTests-context.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans:beans xmlns="http://www.springframework.org/schema/integration"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:beans="http://www.springframework.org/schema/beans"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans
+			http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
+			http://www.springframework.org/schema/integration
+			http://www.springframework.org/schema/integration/spring-integration-1.0.xsd">
+
+	<message-bus/>
+
+	<channel id="output">
+		<queue capacity="1"/>
+	</channel>
+
+	<filter ref="selector" method="hasText" input-channel="input" output-channel="output"/>
+
+	<beans:bean id="selector"
+		class="org.springframework.integration.config.FilterParserTests$TestSelector"/>
+
+</beans:beans>

org.springframework.integration/src/test/java/org/springframework/integration/config/FilterParserTests.java

@@ -0,0 +1,73 @@
+/*
+ * 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.integration.config;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.integration.channel.MessageChannel;
+import org.springframework.integration.channel.PollableChannel;
+import org.springframework.integration.message.Message;
+import org.springframework.integration.message.StringMessage;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.util.StringUtils;
+
+/**
+ * @author Mark Fisher
+ */
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration
+public class FilterParserTests {
+
+	@Autowired @Qualifier("input")
+	MessageChannel input;
+
+	@Autowired @Qualifier("output")
+	PollableChannel output;
+
+
+	@Test
+	public void filterAccepts() {
+		input.send(new StringMessage("test"));
+		Message<?> reply = output.receive(0);
+		assertNotNull(reply);
+		assertEquals("test", reply.getPayload());
+	}
+
+	@Test
+	public void filterRejects() {
+		input.send(new StringMessage(""));
+		Message<?> reply = output.receive(0);
+		assertNull(reply);
+	}
+
+
+	public static class TestSelector {
+
+		public boolean hasText(String s) {
+			return StringUtils.hasText(s);
+		}
+	}
+
+}