/*
* JBoss, Home of Professional Open Source
* Copyright 2011, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* 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.jboss.solder.test.reflection;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import junit.framework.Assert;
import org.jboss.solder.test.reflection.model.Cat;
import org.jboss.solder.reflection.Reflections;
import org.junit.Before;
import org.junit.Test;
/**
* @author <a href="http://community.jboss.org/people/dan.j.allen">Dan Allen</a>
*/
public class ReflectionsTest {
private Cat subject;
@Before
public void setupFixture() {
subject = new Cat();
}
@Test
public void should_invoke_public_no_args_method() {
Method m = Reflections.findDeclaredMethod(Cat.class, "chewOnPowerCord");
Reflections.invokeMethod(m, subject);
Assert.assertEquals(8, subject.getLives());
}
@Test
public void should_invoke_public_method_with_args() {
Method m = Reflections.findDeclaredMethod(Cat.class, "earnLives", Integer.TYPE);
Reflections.invokeMethod(m, subject, 1);
Assert.assertEquals(10, subject.getLives());
}
@Test(expected = RuntimeException.class)
public void should_fail_invoking_public_method_with_invalid_args() {
Method m = Reflections.findDeclaredMethod(Cat.class, "earnLives", Integer.TYPE);
Reflections.invokeMethod(m, subject, -1);
Assert.assertEquals(10, subject.getLives());
}
@Test(expected = RuntimeException.class)
public void should_fail_invoking_private_method() {
Method m = Reflections.findDeclaredMethod(Cat.class, "diveUnderMovingCar");
Reflections.invokeMethod(m, subject);
}
@Test
public void should_invoke_private_method_when_set_accessible() {
Method m = Reflections.findDeclaredMethod(Cat.class, "diveUnderMovingCar");
Reflections.invokeMethod(true, m, subject);
}
@Test(expected = RuntimeException.class)
public void should_fail_invoking_package_method() {
Method m = Reflections.findDeclaredMethod(Cat.class, "fightWithBigDog");
Reflections.invokeMethod(m, subject);
}
@Test
public void should_invoke_package_method_when_set_accessible() {
Method m = Reflections.findDeclaredMethod(Cat.class, "fightWithBigDog");
Reflections.invokeMethod(true, m, subject);
}
@Test(expected = RuntimeException.class)
public void should_fail_setting_private_field() {
Field f = Reflections.findDeclaredField(Cat.class, "lives");
Reflections.setFieldValue(f, subject, 1);
}
@Test
public void should_set_private_field_when_set_accessible() {
Field f = Reflections.findDeclaredField(Cat.class, "lives");
Reflections.setFieldValue(true, f, subject, 1);
Assert.assertEquals(1, subject.getLives());
}
@Test
public void should_set_method_accessible() {
Method m = Reflections.findDeclaredMethod(Cat.class, "fightWithBigDog");
Assert.assertFalse(m.isAccessible());
Method result = Reflections.setAccessible(m);
Assert.assertTrue(m.isAccessible());
Assert.assertTrue(result.isAccessible());
Assert.assertSame(m, result);
}
@Test
public void should_set_field_accessible() {
Field f = Reflections.findDeclaredField(Cat.class, "lives");
Assert.assertFalse(f.isAccessible());
Field result = Reflections.setAccessible(f);
Assert.assertTrue(f.isAccessible());
Assert.assertTrue(result.isAccessible());
Assert.assertSame(f, result);
}
}