package org.jgroups.tests;
import org.jgroups.Address;
import org.jgroups.Global;
import org.jgroups.blocks.MethodCall;
import org.jgroups.util.Util;
import org.testng.Assert;
import org.testng.annotations.Test;
import java.lang.reflect.Method;
/**
* @author Bela Ban belaban@yahoo.com
* @author <a href="mailto:ovidiu@jboss.org">Ovidiu Feodorov</a>
**/
@Test(groups=Global.FUNCTIONAL)
public class MethodCallTest {
public static class TargetClass {
public static boolean foo(int a, String b) {
System.out.println("test(" + a + ", " + b + ')');
return true;
}
public static void bar(String[] a, String b) {
if(a != null) {
for(int i=0; i < a.length; i++) {
String s=a[i];
System.out.print(s + ' ');
}
}
else
System.out.println("a=null");
if(b != null)
System.out.println("b=" + b);
else
System.out.println("b=null");
}
public static void foobar() {
System.out.println("foobar()");
}
}
final TargetClass target=new TargetClass();
public void testOld() throws Exception {
MethodCall mc=new MethodCall("foo", new Object[]{new Integer(22), "Bela"}, new Class[]{int.class,String.class});
Assert.assertEquals(mc.invoke(target), Boolean.TRUE);
}
public void testOld2() throws Exception {
new MethodCall("bar", new Object[]{new String[]{"one", "two", "three"}, "Bela"},
new Class[]{String[].class, String.class}).invoke(target);
}
public void testWithNull() throws Exception {
new MethodCall("foobar", null, null).invoke(target);
}
public void testOldWithNull() throws Exception {
new MethodCall("bar", new Object[]{new String[]{"one", "two", "three"}, null},
new Class[]{String[].class, String.class}).invoke(target);
}
public void testOldWithNull2() throws Exception {
new MethodCall("bar", new Object[]{null, "Bela"},
new Class[]{String[].class, String.class}).invoke(target);
}
public void testOldWithNull3() throws Exception {
new MethodCall("foobar", null, null).invoke(target);
}
public void testOldWithNull4() throws Exception {
new MethodCall("foobar", new Object[0], null).invoke(target);
}
public void testMethod() throws Exception {
Method m=TargetClass.class.getMethod("foo", new Class[]{int.class, String.class});
MethodCall mc=new MethodCall(m, new Integer(22), "Bela");
Assert.assertEquals(mc.invoke(target), Boolean.TRUE);
}
public void testTypes() throws Exception {
MethodCall mc=new MethodCall("foo", new Object[]{new Integer(35),"Bela"}, new Class[]{int.class,String.class});
Assert.assertEquals(mc.invoke(target), Boolean.TRUE);
}
public void testTypesWithArray() throws Exception {
new MethodCall("bar", new Object[]{new String[]{"one", "two", "three"}, "Bela"},
new Class[]{String[].class, String.class}).invoke(target);
}
public void testTypesWithNullArgument() throws Exception {
new MethodCall("bar", new Object[]{new String[]{"one", "two", "three"}, null},
new Class[]{String[].class, String.class}).invoke(target);
}
public void testTypesWithNullArgument2() throws Exception {
MethodCall mc=new MethodCall("bar", new Object[]{new String[]{"one", "two", "three"}, new Object[]{}},
new Class[]{String[].class, String.class});
try {
mc.invoke(target);
assert false: "we should not get here as there should be an argument mismatch exception";
}
catch(IllegalArgumentException ex) {
System.out.println("caught IllegalArgumentException - as expected");
}
}
public void testTypesWithNullArgument3() throws Exception {
new MethodCall("foobar", new Object[]{}, new Class[]{}).invoke(target);
}
public void testTypesWithNullArgument4() throws Exception {
new MethodCall("foobar", null, null).invoke(target);
}
public void testTypesWithNullArgument5() throws Exception {
new MethodCall("foobar", new Object[0], new Class[0]).invoke(target);
}
public void testSignature() throws Exception {
MethodCall mc=new MethodCall("foo", new Object[]{new Integer(35), "Bela"},
new Class[]{int.class, String.class});
Assert.assertEquals(mc.invoke(target), Boolean.TRUE);
}
public static void testBufferSize() throws Exception {
MethodCall m=new MethodCall("foo", new Object[]{new Integer(10),"Bela"}, new Class[]{int.class, String.class});
byte[] data=Util.objectToByteBuffer(m);
MethodCall m2=(MethodCall)Util.objectFromByteBuffer(data);
System.out.println(m2);
Object[] args=m2.getArgs();
assert args.length == 2;
assert args[0].equals(new Integer(10));
assert args[1].equals("Bela");
}
public static void testOLD() throws Exception {
MethodCall methodCall = new MethodCall("someMethod", new Object[] {"abc"}, new Class[]{String.class});
Target target = new Target();
Object result = methodCall.invoke(target);
Assert.assertEquals("ABC", result);
}
public static void testInheritanceOLD() throws Exception {
MethodCall methodCall = new MethodCall("someMethod", new Object[] {"abc"}, new Class[]{String.class});
TargetSubclass target = new TargetSubclass();
Object result = methodCall.invoke(target);
Assert.assertEquals("ABC", result);
}
public static void testMETHOD() throws Exception {
Method method = Target.class.getMethod("someMethod", new Class[] { String.class });
MethodCall methodCall = new MethodCall(method, "abc");
Target target = new Target();
Object result = methodCall.invoke(target);
Assert.assertEquals("ABC", result);
}
public static void testInheritanceMETHOD() throws Exception {
Method method = Target.class.getMethod("someMethod", new Class[] { String.class });
MethodCall methodCall = new MethodCall(method, "abc");
TargetSubclass target = new TargetSubclass();
Object result = methodCall.invoke(target);
Assert.assertEquals("ABC", result);
}
public static void testTYPES() throws Exception {
MethodCall methodCall = new MethodCall("someMethod", new Object[] { "abc" }, new Class[] { String.class });
Target target = new Target();
Object result = methodCall.invoke(target);
Assert.assertEquals("ABC", result);
}
public static void testInheritanceTYPES() throws Exception {
MethodCall methodCall = new MethodCall("someMethod", new Object[] { "abc" }, new Class[] { String.class });
TargetSubclass target = new TargetSubclass();
Object result = methodCall.invoke(target);
Assert.assertEquals("ABC", result);
}
/**
* This tests whether overriden methods are correctly identified and invoked.
*/
public static void testOverriddenForTYPES() throws Exception {
MethodCall methodCall = new MethodCall("overriddenMethod", new Object[] { "abc" }, new Class[] { String.class });
TargetSubclass target = new TargetSubclass();
Object result = methodCall.invoke(target);
Assert.assertEquals("TargetSubclassABC", result);
}
public static void testNoArgumentMethodForTYPES() throws Exception {
MethodCall methodCall = new MethodCall("noArgumentMethod", new Object[0], new Class[0]);
TargetSubclass target = new TargetSubclass();
Object result = methodCall.invoke(target);
Assert.assertEquals("noArgumentMethodResult", result);
}
public static void testSIGNATURE() throws Exception {
MethodCall methodCall = new MethodCall("someMethod", new Object[] { "abc" }, new Class[] {String.class});
Target target = new Target();
Object result = methodCall.invoke(target);
Assert.assertEquals("ABC", result);
}
public static void testInheritanceSIGNATURE() throws Exception {
MethodCall methodCall = new MethodCall("someMethod", new Object[] {"abc"}, new Class[] {String.class});
TargetSubclass target = new TargetSubclass();
Object result = methodCall.invoke(target);
Assert.assertEquals("ABC", result);
}
public static void testMarshalling() throws Exception {
MethodCall methodCall = new MethodCall("someMethod", new Object[] { "abc" }, new Class[] {String.class});
System.out.println("methodCall: " + methodCall);
MethodCall m=marshalAndUnmarshal(methodCall);
System.out.println("m: " + m);
}
public static void testMarshalling2() throws Exception {
Address addr=Util.createRandomAddress("A");
MethodCall call=new MethodCall("foo",
new Object[]{"hello", 23, addr},
new Class[]{String.class, int.class, Address.class});
MethodCall m=marshalAndUnmarshal(call);
System.out.println("m = " + m);
}
private static MethodCall marshalAndUnmarshal(MethodCall m) throws Exception {
byte[] buf=Util.objectToByteBuffer(m);
return (MethodCall)Util.objectFromByteBuffer(buf);
}
public static class Target {
public static String someMethod(String arg) {
return arg.toUpperCase();
}
public String overriddenMethod(String arg) {
return "Target" + arg.toUpperCase();
}
public static String noArgumentMethod() {
return "noArgumentMethodResult";
}
}
public static class TargetSubclass extends Target {
public String overriddenMethod(String arg) {
return "TargetSubclass" + arg.toUpperCase();
}
}
}