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diff --git a/sdo-java/branches/sdo-1.1-incubating/impl/src/test/java/org/apache/tuscany/sdo/test/ChangeSummaryPropertyTestCase.java b/sdo-java/branches/sdo-1.1-incubating/impl/src/test/java/org/apache/tuscany/sdo/test/ChangeSummaryPropertyTestCase.java
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+++ b/sdo-java/branches/sdo-1.1-incubating/impl/src/test/java/org/apache/tuscany/sdo/test/ChangeSummaryPropertyTestCase.java
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+/**
+ *
+ *  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.tuscany.sdo.test;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.math.BigDecimal;
+import java.net.URL;
+import java.util.List;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sdo.util.SDOUtil;
+
+import commonj.sdo.ChangeSummary;
+import commonj.sdo.DataObject;
+import commonj.sdo.Property;
+import commonj.sdo.Sequence;
+import commonj.sdo.Type;
+import commonj.sdo.helper.DataFactory;
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.helper.XMLHelper;
+import commonj.sdo.helper.XSDHelper;
+
+public class ChangeSummaryPropertyTestCase extends TestCase {
+    private final String TEST_MODEL = "/simpleWithChangeSummary.xsd";
+    private final String TEST_NAMESPACE = "http://www.example.com/simpleCS";
+
+    private final String TEST_DATA_BEFORE_UNDO = "/simpleWithChangeSummary.xml";
+    private final String TEST_DATA_AFTER_UNDO = "/simpleWithChangeSummaryUndone.xml";
+    
+    HelperContext hc;
+    DataFactory dataFactory;
+    XMLHelper xmlHelper;
+    
+    void verify(ChangeSummary cs, DataObject quote, String nameSpace, String element, String beforeUndo, String afterUndo) throws IOException {
+        // Stop logging changes and serialize the resulting data graph
+        //
+        cs.endLogging();
+
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        xmlHelper.save(quote, nameSpace, element, baos);
+        //xmlHelper.save(quote, nameSpace, element, System.out);
+
+        byte[] bytes = baos.toByteArray();
+        URL url = getClass().getResource(beforeUndo);
+        assertTrue(TestUtil.equalXmlFiles(new ByteArrayInputStream(bytes), url));
+        
+        DataObject loaded = xmlHelper.load(new ByteArrayInputStream(bytes)).getRootObject();
+        baos.reset();
+        xmlHelper.save(loaded, nameSpace, element, baos);
+        //xmlHelper.save(loaded, nameSpace, element, System.out);
+        assertTrue(TestUtil.equalXmlFiles(new ByteArrayInputStream(baos.toByteArray()), url));
+        
+        // Undo all changes and then serialize the resulting data graph again
+        //
+        cs.undoChanges();
+        
+        baos.reset();
+        xmlHelper.save(quote, nameSpace, element, baos);
+        //xmlHelper.save(quote, nameSpace, element, System.out);
+        
+        assertTrue(TestUtil.equalXmlFiles(new ByteArrayInputStream(baos.toByteArray()), getClass().getResource(afterUndo)));
+    }
+    
+    /**
+     * ChangeSummary property test.
+     */
+    protected final void change(String nameSpace, String beforeUndo, String afterUndo) throws Exception {
+        Type quoteType = hc.getTypeHelper().getType(nameSpace, "RootQuote");
+        DataObject quote = dataFactory.create(quoteType);
+        
+        ChangeSummary cs = quote.getChangeSummary();
+        ChangeSummary csp = (ChangeSummary)quote.get("changes");
+
+        assertSame(cs, csp);
+
+        quote.setString("symbol", "fbnt");
+        quote.setString("companyName", "FlyByNightTechnology");
+        quote.setBigDecimal("price", new BigDecimal("1000.0"));
+        DataObject child = quote.createDataObject("quotes");
+        child.setBigDecimal("price", new BigDecimal("1500.0"));
+        child = quote.createDataObject("quotes");
+        child.setBigDecimal("price", new BigDecimal("2000.0"));
+        child = child.createDataObject("quotes");
+        child.setBigDecimal("price", new BigDecimal("2000.99"));
+        child = quote.createDataObject("quotes");
+        child.setBigDecimal("price", new BigDecimal("2500.0"));
+
+        // Begin logging changes
+        //
+        cs.beginLogging();
+
+        // Modify the data graph in various ways
+        //
+        quote.setString("symbol", "FBNT");
+        quote.setBigDecimal("price", new BigDecimal("999.0"));
+        quote.setDouble("volume", 1000);
+
+        child = quote.createDataObject("quotes");
+        child.setBigDecimal("price", new BigDecimal("3000.0"));
+        child = quote.createDataObject("quotes");
+        child.setBigDecimal("price", new BigDecimal("4000.0"));
+
+        quote.getDataObject("quotes[2]").delete();
+
+        verify(cs, quote, nameSpace, "stockQuote", beforeUndo, afterUndo);
+    }
+    
+    /**
+     * Simple ChangeSummary property test.
+     */
+    public void testChangeSummary() throws Exception {
+        change(TEST_NAMESPACE, TEST_DATA_BEFORE_UNDO, TEST_DATA_AFTER_UNDO);
+    }
+    
+    static final String SequenceTest_NameSpace = "http://www.example.com/sequenceCS";
+
+    /**
+     * Mixed ChangeSummary property test.
+     */
+    public void testMixedChangeSummary() throws Exception {
+        change(SequenceTest_NameSpace, "/mixedChangeSummary.xml", "/mixedChangeSummaryUndone.xml");
+    }
+    
+    protected final DataObject createDataObject(Type quoteType, Object value, Sequence sequence, Property property) {
+        DataObject child = dataFactory.create(quoteType);
+        child.set("symbol", value);
+        sequence.add(property, child);
+        return child;
+    }
+    
+    static final String SequenceTest_ELEMENT = "openQuote";
+
+    private XSDHelper xsdHelper;
+
+    /**
+     * Open/any ChangeSummary property test.
+     */
+    public void testOpenChangeSummary() throws Exception {
+        DataObject quote = dataFactory.create(xsdHelper.getGlobalProperty(SequenceTest_NameSpace, SequenceTest_ELEMENT, true).getType());
+        
+        ChangeSummary cs = quote.getChangeSummary();
+        ChangeSummary csp = (ChangeSummary)quote.get("changes");
+
+        assertSame(cs, csp);
+
+        quote.set("symbol", "fbnt");
+        Property property = xsdHelper.getGlobalProperty("http://www.example.com/open", "openStockQuote", true);
+        Type quoteType = property.getType();
+        List openStockQuotes = ((DataObject)quote).getList(property);
+        
+        addQuote(openStockQuotes, quoteType, "1500.0");
+        DataObject osq2 = addQuote(openStockQuotes, quoteType, "2000.0");
+        addQuote(osq2.getList(property), quoteType, "2000.99");
+        addQuote(openStockQuotes, quoteType, "2500.0");
+
+        // Begin logging changes
+        //
+        cs.beginLogging();
+
+        // Modify the data graph in various ways
+        //
+        quote.set("symbol", "FBNT");
+
+        addQuote(openStockQuotes, quoteType, "3000.0");
+        addQuote(openStockQuotes, quoteType, "4000.0");
+
+        openStockQuotes.remove(osq2);
+
+
+        verify(cs, quote, SequenceTest_NameSpace, SequenceTest_ELEMENT, "/openChangeSummary.xml", "/openChangeSummaryUndone.xml");
+    }
+
+    private DataObject addQuote(List openStockQuotes, Type quoteType,
+            Object value) {
+        DataObject osq = dataFactory.create(quoteType);
+        osq.set("symbol", value);
+	    openStockQuotes.add(osq);
+        return osq;
+    }
+
+    void define(String model) throws Exception {
+        // Populate the meta data for the test model
+        URL url = getClass().getResource(model);
+        xsdHelper.define(url.openStream(), url.toString());
+    }
+    
+    protected void setUp() throws Exception {
+        super.setUp();
+        hc = SDOUtil.createHelperContext();
+        xsdHelper = hc.getXSDHelper();
+        dataFactory = hc.getDataFactory();
+        xmlHelper = hc.getXMLHelper();
+
+        // Populate the meta data for the test (Stock Quote) model
+        define(TEST_MODEL);
+
+        define("/SequenceChangeSummary.xsd");
+    }
+}