Added ObjectToStringTransformer (INT-514).

org.springframework.integration/src/test/java/org/springframework/integration/transformer/ObjectToStringTransformerTests.java

@@ -0,0 +1,54 @@
+/*
+ * 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.transformer;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+import org.springframework.integration.core.Message;
+import org.springframework.integration.message.GenericMessage;
+import org.springframework.integration.message.StringMessage;
+
+/**
+ * @author Mark Fisher
+ */
+public class ObjectToStringTransformerTests {
+
+	@Test
+	public void stringPayload() {
+		Transformer transformer = new ObjectToStringTransformer();
+		Message<?> result = transformer.transform(new StringMessage("foo"));
+		assertEquals("foo", result.getPayload());
+	}
+
+	@Test
+	public void objectPayload() {
+		Transformer transformer = new ObjectToStringTransformer();
+		Message<?> result = transformer.transform(new GenericMessage<TestBean>(new TestBean()));
+		assertEquals("test", result.getPayload());
+	}
+
+
+	private static class TestBean {
+
+		public String toString() {
+			return "test";
+		}
+	}
+
+}