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/**
*
* Copyright 2005 The Apache Software Foundation
*
* 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.apache.tuscany.core.config;
import junit.framework.Assert;
import junit.framework.TestCase;
import org.apache.tuscany.core.mock.component.Target;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.List;
import java.util.Map;
import java.util.Set;
public class JavaIntrospectionHelperTestCase extends TestCase {
public JavaIntrospectionHelperTestCase() {
super();
}
public JavaIntrospectionHelperTestCase(String arg0) {
super(arg0);
}
public void testGetSuperAllFields() throws Exception {
Set<Field> superBeanFields = JavaIntrospectionHelper.getAllFields(SuperBean.class);
Assert.assertEquals(SuperBean.ALL_SUPER_FIELDS, superBeanFields.size());
}
public void testBean1AllPublicProtectedFields() throws Exception {
Set<Field> beanFields = JavaIntrospectionHelper.getAllPublicAndProtectedFields(Bean1.class);
Assert.assertEquals(4, beanFields.size()); //Bean1.ALL_BEAN1_PUBLIC_PROTECTED_FIELDS
}
public void testBean1AllFields() throws Exception {
Set<Field> beanFields = JavaIntrospectionHelper.getAllFields(Bean1.class);
Assert.assertEquals(Bean1.ALL_BEAN1_FIELDS, beanFields.size());
}
public void testGetSuperAllMethods() throws Exception {
Set<Method> superBeanMethods = JavaIntrospectionHelper.getAllUniqueMethods(SuperBean.class);
Assert.assertEquals(SuperBean.ALL_SUPER_METHODS, superBeanMethods.size());
}
public void testGetBean1AllMethods() throws Exception {
Set<Method> beanMethods = JavaIntrospectionHelper.getAllUniqueMethods(Bean1.class);
Assert.assertEquals(Bean1.ALL__BEAN1_METHODS, beanMethods.size());
}
public void testOverrideMethod() throws Exception {
Set<Method> beanFields = JavaIntrospectionHelper.getAllUniqueMethods(Bean1.class);
boolean invoked = false;
for (Method method : beanFields) {
if (method.getName().equals("override")) {
method.invoke(new Bean1(), "foo");
invoked = true;
}
}
if (!invoked) {
throw new Exception("Override never invoked");
}
}
public void testNoOverrideMethod() throws Exception {
Set<Method> beanFields = JavaIntrospectionHelper.getAllUniqueMethods(Bean1.class);
boolean found = false;
for (Method method : beanFields) {
if (method.getName().equals("noOverride") && method.getParameterTypes().length == 0) {
found = true;
}
}
if (!found) {
throw new Exception("No override not found");
}
}
public void testGetBean1AllFields() throws Exception {
Set<Field> bean1 = JavaIntrospectionHelper.getAllFields(Bean1.class);
Assert.assertEquals(Bean1.ALL_BEAN1_FIELDS, bean1.size());
}
public void testDefaultConstructor() throws Exception {
Constructor ctr = JavaIntrospectionHelper.getDefaultConstructor(Bean2.class);
Assert.assertEquals(ctr, Bean2.class.getConstructor());
Assert.assertTrue(Bean2.class == ctr.newInstance((Object[]) null).getClass());
}
public void testFindMultiplicityByFieldName() throws Exception{
Set<Field> fields = JavaIntrospectionHelper.getAllFields(getClass());
Set<Method> methods = JavaIntrospectionHelper.getAllUniqueMethods(getClass());
Assert.assertNotNull(JavaIntrospectionHelper.findMultiplicityFieldByName("testList",fields));
Assert.assertNotNull(JavaIntrospectionHelper.findMultiplicityMethodByName("fooMethod",methods));
// this array is not an interface
Assert.assertNull(JavaIntrospectionHelper.findMultiplicityFieldByName("testStringArray",fields));
Assert.assertNotNull(JavaIntrospectionHelper.findMultiplicityFieldByName("testArray",fields));
Assert.assertNotNull(JavaIntrospectionHelper.findMultiplicityMethodByName("setTestArray",methods));
}
/**
* Tests generics introspection capabilities
*/
public void testGenerics() throws Exception{
List classes = JavaIntrospectionHelper.getGenerics(getClass().getDeclaredField("testList").getGenericType());
Assert.assertEquals(1,classes.size());
Assert.assertEquals(String.class,classes.get(0));
classes = JavaIntrospectionHelper.getGenerics(getClass().getDeclaredField("testNoGenericsList").getGenericType());
Assert.assertEquals(0,classes.size());
classes = JavaIntrospectionHelper.getGenerics(getClass().getDeclaredField("testMap").getGenericType());
Assert.assertEquals(2,classes.size());
Assert.assertEquals(String.class,classes.get(0));
Assert.assertEquals(Bean1.class,classes.get(1));
classes = JavaIntrospectionHelper.getGenerics(getClass().getDeclaredMethod("fooMethod", Map.class).getGenericParameterTypes()[0]);
Assert.assertEquals(2,classes.size());
Assert.assertEquals(String.class,classes.get(0));
Assert.assertEquals(Bean1.class,classes.get(1));
classes = JavaIntrospectionHelper.getGenerics(getClass().getDeclaredMethod("fooMethod", List.class).getGenericParameterTypes()[0]);
Assert.assertEquals(1,classes.size());
Assert.assertEquals(String.class,classes.get(0));
}
private List testNoGenericsList;
private List<String> testList;
private Map<String,Bean1> testMap;
private void fooMethod(List<String> foo){
}
private void fooMethod(Map<String, Bean1> foo){
}
private Target[] testArray;
private String[] testStringArray;
public void setTestArray(Target[] array){}
}
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