001 /*
002 * $Id: ASTMethodTest.java 1187867 2011-10-23 11:35:10Z simonetripodi $
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements. See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership. The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance
009 * with the License. You may obtain a copy of the License at
010 *
011 * http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing,
014 * software distributed under the License is distributed on an
015 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
016 * KIND, either express or implied. See the License for the
017 * specific language governing permissions and limitations
018 * under the License.
019 */
020 package org.apache.commons.ognl.test;
021
022 import junit.framework.TestCase;
023 import org.apache.commons.ognl.*;
024 import org.apache.commons.ognl.enhance.ExpressionCompiler;
025 import org.apache.commons.ognl.test.objects.Bean2;
026 import org.apache.commons.ognl.test.objects.Bean3;
027 import org.apache.commons.ognl.test.objects.Root;
028
029 import java.util.Map;
030
031 /**
032 * Tests {@link org.apache.commons.ognl.ASTMethod}.
033 */
034 public class ASTMethodTest
035 extends TestCase
036 {
037
038 public void test_Context_Types()
039 throws Throwable
040 {
041 ASTMethod p = new ASTMethod( 0 );
042 p.setMethodName( "get" );
043
044 ASTConst pRef = new ASTConst( 0 );
045 pRef.setValue( "value" );
046 p.jjtAddChild( pRef, 0 );
047
048 Root root = new Root();
049
050 OgnlContext context = (OgnlContext) Ognl.createDefaultContext( null );
051 context.setRoot( root.getMap() );
052 context.setCurrentObject( root.getMap() );
053 context.setCurrentType( root.getMap().getClass() );
054
055 assertEquals( p.toGetSourceString( context, root.getMap() ), ".get(\"value\")" );
056 assertEquals( context.getCurrentType(), Object.class );
057 assertEquals( root.getMap().get( "value" ), context.getCurrentObject() );
058 assert Map.class.isAssignableFrom( context.getCurrentAccessor() );
059 assert Map.class.isAssignableFrom( context.getPreviousType() );
060 assert context.getPreviousAccessor() == null;
061
062 assertEquals( OgnlRuntime.getCompiler( context ).castExpression( context, p, ".get(\"value\")" ), ".get(\"value\")" );
063 assert context.get( ExpressionCompiler.PRE_CAST ) == null;
064
065 // now test one context level further to see casting work properly on base object types
066
067 ASTProperty prop = new ASTProperty( 0 );
068 ASTConst propRef = new ASTConst( 0 );
069 propRef.setValue( "bean3" );
070 prop.jjtAddChild( propRef, 0 );
071
072 Bean2 val = (Bean2) root.getMap().get( "value" );
073
074 assertEquals( prop.toGetSourceString( context, root.getMap().get( "value" ) ), ".getBean3()" );
075
076 assertEquals( context.getCurrentObject(), val.getBean3() );
077 assertEquals( context.getCurrentType(), Bean3.class );
078 assertEquals( context.getCurrentAccessor(), Bean2.class );
079 assertEquals( Object.class, context.getPreviousType() );
080 assert Map.class.isAssignableFrom( context.getPreviousAccessor() );
081
082 assertEquals( OgnlRuntime.getCompiler( context ).castExpression( context, prop, ".getBean3()" ), ").getBean3()" );
083
084 }
085 }