/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.commons.beanutils2; import java.beans.IntrospectionException; import java.beans.PropertyDescriptor; import java.util.Arrays; import java.util.Collection; import java.util.HashSet; import java.util.Set; import junit.framework.TestCase; /** * Test class for {@code SuppressPropertiesBeanIntrospector}. * */ public class SuppressPropertiesBeanIntrospectorTestCase extends TestCase { /** * Tries to create an instance without properties. */ public void testInitNoPropertyNames() { try { new SuppressPropertiesBeanIntrospector(null); fail("Missing properties not detected!"); } catch (final IllegalArgumentException iaex) { // ok } } /** * Tests whether the expected properties have been removed during introspection. */ public void testRemovePropertiesDuringIntrospection() throws IntrospectionException { final String[] properties = { "test", "other", "oneMore" }; final SuppressPropertiesBeanIntrospector introspector = new SuppressPropertiesBeanIntrospector( Arrays.asList(properties)); final IntrospectionContextTestImpl context = new IntrospectionContextTestImpl(); introspector.introspect(context); assertEquals("Wrong number of removed properties", properties.length, context .getRemovedProperties().size()); for (final String property : properties) { assertTrue("Property not removed: " + property, context .getRemovedProperties().contains(property)); } } /** * Tests that a defensive copy is created from the collection with properties to be * removed. */ public void testPropertyNamesDefensiveCopy() throws IntrospectionException { final Collection<String> properties = new HashSet<>(); properties.add("prop1"); final SuppressPropertiesBeanIntrospector introspector = new SuppressPropertiesBeanIntrospector( properties); properties.add("prop2"); final IntrospectionContextTestImpl context = new IntrospectionContextTestImpl(); introspector.introspect(context); assertEquals("Wrong number of removed properties", 1, context .getRemovedProperties().size()); assertTrue("Wrong removed property", context.getRemovedProperties().contains("prop1")); } /** * Tests that the set with properties to be removed cannot be modified. */ public void testGetSuppressedPropertiesModify() { final SuppressPropertiesBeanIntrospector introspector = new SuppressPropertiesBeanIntrospector( Arrays.asList("p1", "p2")); final Set<String> properties = introspector.getSuppressedProperties(); try { properties.add("anotherProperty"); fail("Could modify properties"); } catch (final UnsupportedOperationException uoex) { // ok } } /** * A test implementation of IntrospectionContext which collects the properties which * have been removed. */ private static class IntrospectionContextTestImpl implements IntrospectionContext { /** Stores the names of properties which have been removed. */ private final Set<String> removedProperties = new HashSet<>(); /** * Returns the names of properties which have been removed. * * @return the set with removed properties */ public Set<String> getRemovedProperties() { return removedProperties; } @Override public Class<?> getTargetClass() { throw new UnsupportedOperationException("Unexpected method call!"); } @Override public void addPropertyDescriptor(final PropertyDescriptor desc) { throw new UnsupportedOperationException("Unexpected method call!"); } @Override public void addPropertyDescriptors(final PropertyDescriptor[] descriptors) { throw new UnsupportedOperationException("Unexpected method call!"); } @Override public boolean hasProperty(final String name) { throw new UnsupportedOperationException("Unexpected method call!"); } @Override public PropertyDescriptor getPropertyDescriptor(final String name) { throw new UnsupportedOperationException("Unexpected method call!"); } @Override public void removePropertyDescriptor(final String name) { removedProperties.add(name); } @Override public Set<String> propertyNames() { throw new UnsupportedOperationException("Unexpected method call!"); } } }