SWF-443 - Enhance MethodInvoker to allow type conversion on a method result.

spring-binding/src/test/java/org/springframework/binding/method/MethodInvokerTests.java

@@ -23,6 +23,7 @@ import org.springframework.binding.expression.support.StaticExpression;
  * Unit tests for {@link org.springframework.binding.method.MethodInvoker}.
  * 
  * @author Erwin Vervaet
+ * @author Jeremy Grelle
  */
 public class MethodInvokerTests extends TestCase {
 
@@ -55,17 +56,23 @@ public class MethodInvokerTests extends TestCase {
 		Parameters parameters = new Parameters();
 		Bean bean = new Bean();
 		parameters.add(new Parameter(Bean.class, new StaticExpression(bean)));
-		MethodSignature method = new MethodSignature("testBeanArg", parameters);
+		MethodSignature method = new MethodSignature("testBeanArg", parameters, null);
 		assertSame(bean, methodInvoker.invoke(method, new TestObject(), null));
 	}
 
 	public void testPrimitiveArg() {
 		Parameters parameters = new Parameters();
 		parameters.add(new Parameter(Boolean.class, new StaticExpression(Boolean.TRUE)));
-		MethodSignature method = new MethodSignature("testPrimitiveArg", parameters);
+		MethodSignature method = new MethodSignature("testPrimitiveArg", parameters, null);
 		assertEquals(Boolean.TRUE, methodInvoker.invoke(method, new TestObject(), null));
 	}
 
+	public void testResultConversion() {
+		Parameters parameters = Parameters.NONE;
+		MethodSignature method = new MethodSignature("testConvertResult", parameters, Class.class);
+		assertEquals(Object.class, methodInvoker.invoke(method, new TestObject(), null));
+	}
+
 	private static class TestObject {
 
 		public void test() {
@@ -76,6 +83,10 @@ public class MethodInvokerTests extends TestCase {
 			return bean;
 		}
 
+		public String testConvertResult() {
+			return "java.lang.Object";
+		}
+
 		public boolean testPrimitiveArg(boolean primitive) {
 			return primitive;
 		}