/*
* Copyright (C) 2004, 2005, 2006 Joe Walnes.
* Copyright (C) 2006, 2007, 2008 XStream Committers.
* All rights reserved.
*
* The software in this package is published under the terms of the BSD
* style license a copy of which has been included with this distribution in
* the LICENSE.txt file.
*
* Created on 06. March 2004 by Joe Walnes
*/
package com.thoughtworks.acceptance;
import com.thoughtworks.acceptance.objects.Category;
import com.thoughtworks.acceptance.objects.Software;
import com.thoughtworks.acceptance.someobjects.WithList;
import com.thoughtworks.acceptance.someobjects.X;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.XmlFriendlyReplacer;
import com.thoughtworks.xstream.io.xml.XppDriver;
import com.thoughtworks.xstream.mapper.CannotResolveClassException;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
/**
* @author Paul Hammant
* @author Jörg Schaible
*/
public class AliasTest extends AbstractAcceptanceTest {
public void testBarfsIfItDoesNotExist() {
String xml = "" +
"<X-array>\n" +
" <X>\n" +
" <anInt>0</anInt>\n" +
" </X>\n" +
"</X-array>";
// now change the alias
xstream.alias("Xxxxxxxx", X.class);
try {
xstream.fromXML(xml);
fail("ShouldCannotResolveClassException expected");
} catch (CannotResolveClassException expectedException) {
// expected
}
}
public void testWithUnderscore() {
xstream = new XStream(new XppDriver(new XmlFriendlyReplacer("_-", "_")));
String xml = "" +
"<X_alias>\n" +
" <anInt>0</anInt>\n" +
"</X_alias>";
// now change the alias
xstream.alias("X_alias", X.class);
X x = new X(0);
assertBothWays(x, xml);
}
public static class HasUnderscore {
private String _attr = "foo";
}
public void testWithPrefixedUnderscore(){
HasUnderscore x = new HasUnderscore();
xstream.alias("underscore", HasUnderscore.class);
xstream.aliasField("attr", HasUnderscore.class, "_attr");
String xml = "" +
"<underscore>\n" +
" <attr>foo</attr>\n" +
"</underscore>";
assertBothWays(x, xml);
}
public void testForFieldAsAttribute() {
Software software = new Software("walness", "xstream");
xstream.alias("software", Software.class);
xstream.useAttributeFor(String.class);
xstream.aliasAttribute("id", "name");
String xml = "<software vendor=\"walness\" id=\"xstream\"/>";
assertBothWays(software, xml);
}
public void testForReferenceSystemAttribute() {
List list = new ArrayList();
Software software = new Software("walness", "xstream");
list.add(software);
list.add(software);
xstream.alias("software", Software.class);
xstream.useAttributeFor(String.class);
xstream.aliasAttribute("refid", "reference");
String xml = "" +
"<list>\n" +
" <software vendor=\"walness\" name=\"xstream\"/>\n" +
" <software refid=\"../software\"/>\n" +
"</list>";
assertBothWays(list, xml);
}
public void testForSystemAttributes() {
List list = new LinkedList();
Category category = new Category("walness", "xstream");
category.setProducts(list);
list.add(category);
xstream.alias("category", Category.class);
xstream.useAttributeFor(Category.class, "id");
xstream.aliasAttribute("class", "id");
xstream.aliasSystemAttribute("type", "class");
xstream.aliasSystemAttribute("refid", "reference");
String xml = "" +
"<category class=\"xstream\">\n" +
" <name>walness</name>\n" +
" <products type=\"linked-list\">\n" +
" <category refid=\"../..\"/>\n" +
" </products>\n" +
"</category>";
assertBothWays(category, xml);
}
public void testIdentityForFields() {
Software software = new Software("walness", "xstream");
xstream.alias("software", Software.class);
xstream.aliasField("name", Software.class, "name");
xstream.aliasField("vendor", Software.class, "vendor");
String xml = ""
+ "<software>\n"
+ " <vendor>walness</vendor>\n"
+ " <name>xstream</name>\n"
+ "</software>";
assertBothWays(software, xml);
}
private static class FieldsWithInternalNames {
String clazz;
String ref;
}
public void testCanUseInternalNameAsFieldAlias() {
FieldsWithInternalNames object = new FieldsWithInternalNames();
object.clazz = "TestIt";
object.ref = "MyReference";
xstream.alias("internalNames", FieldsWithInternalNames.class);
xstream.aliasField("class", FieldsWithInternalNames.class, "clazz");
xstream.aliasField("reference", FieldsWithInternalNames.class, "ref");
String xml = ""
+ "<internalNames>\n"
+ " <class>TestIt</class>\n"
+ " <reference>MyReference</reference>\n"
+ "</internalNames>";
assertBothWays(object, xml);
}
public void testCanAliasPrimitiveTypes() {
Object object = new boolean[]{true, false};
xstream.alias("bo", Boolean.TYPE);
String xml = ""
+ "<bo-array>\n"
+ " <bo>true</bo>\n"
+ " <bo>false</bo>\n"
+ "</bo-array>";
assertBothWays(object, xml);
}
public void testCanAliasArray() {
Object object = new boolean[]{true, false};
xstream.alias("boa", boolean[].class);
String xml = ""
+ "<boa>\n"
+ " <boolean>true</boolean>\n"
+ " <boolean>false</boolean>\n"
+ "</boa>";
assertBothWays(object, xml);
}
public void testCanAliasArrayInMultiDimension() {
Object object = new boolean[][]{{true, false}};
xstream.alias("boa", boolean[].class);
String xml = ""
+ "<boa-array>\n"
+ " <boa>\n"
+ " <boolean>true</boolean>\n"
+ " <boolean>false</boolean>\n"
+ " </boa>\n"
+ "</boa-array>";
assertBothWays(object, xml);
}
public static class TypeA {
private String attrA = "testA";
}
public static class TypeB extends TypeA {
private String attrB = "testB";
}
public static class TypeC extends TypeB {
private String attrC = "testC";
}
public void testCanAliasInheritedFields() {
xstream.alias("test", TypeC.class);
xstream.aliasField("a", TypeA.class, "attrA");
xstream.aliasField("b", TypeB.class, "attrB");
xstream.aliasField("c", TypeC.class, "attrC");
TypeC object = new TypeC();
String xml = ""
+ "<test>\n"
+ " <a>testA</a>\n"
+ " <b>testB</b>\n"
+ " <c>testC</c>\n"
+ "</test>";
assertBothWays(object, xml);
}
public void testCanOverwriteInheritedAlias() {
xstream.alias("test", TypeC.class);
xstream.aliasField("a", TypeA.class, "attrA");
xstream.aliasField("b", TypeB.class, "attrB");
xstream.aliasField("c", TypeC.class, "attrC");
xstream.aliasField("y", TypeC.class, "attrA");
TypeC object = new TypeC();
String xml = ""
+ "<test>\n"
+ " <y>testA</y>\n"
+ " <b>testB</b>\n"
+ " <c>testC</c>\n"
+ "</test>";
assertBothWays(object, xml);
}
public void testCanAliasArrayElements() {
Object[] software = new Object[]{new Software("walness", "xstream")};
xstream.alias("software", Software.class);
xstream.aliasField("Name", Software.class, "name");
xstream.aliasField("Vendor", Software.class, "vendor");
String xml = "" //
+ "<object-array>\n"
+ " <software>\n"
+ " <Vendor>walness</Vendor>\n"
+ " <Name>xstream</Name>\n"
+ " </software>\n"
+ "</object-array>";
assertBothWays(software, xml);
}
public void testCanAliasCompletePackage() {
Software software = new Software("walness", "xstream");
xstream.aliasPackage("org.codehaus", "com.thoughtworks.acceptance.objects");
String xml = "" //
+ "<org.codehaus.Software>\n"
+ " <vendor>walness</vendor>\n"
+ " <name>xstream</name>\n"
+ "</org.codehaus.Software>";
assertBothWays(software, xml);
}
public void testCanAliasSubPackage() {
Software software = new Software("walness", "xstream");
xstream.aliasPackage("org.codehaus", "com.thoughtworks");
String xml = "" //
+ "<org.codehaus.acceptance.objects.Software>\n"
+ " <vendor>walness</vendor>\n"
+ " <name>xstream</name>\n"
+ "</org.codehaus.acceptance.objects.Software>";
assertBothWays(software, xml);
}
public void testToDefaultPackage() {
Software software = new Software("walness", "xstream");
xstream.aliasPackage("", "com.thoughtworks.acceptance.objects");
String xml = "" //
+ "<Software>\n"
+ " <vendor>walness</vendor>\n"
+ " <name>xstream</name>\n"
+ "</Software>";
assertBothWays(software, xml);
}
public void testForLongerPackageNameTakesPrecedence() {
WithList withList = new WithList();
withList.things.add(new Software("walness", "xstream"));
withList.things.add(new TypeA());
xstream.aliasPackage("model", "com.thoughtworks.acceptance.objects");
xstream.aliasPackage("org.codehaus", "com.thoughtworks");
xstream.aliasPackage("model.foo", "com.thoughtworks.acceptance.someobjects");
String xml = "" //
+ "<model.foo.WithList>\n"
+ " <things>\n"
+ " <model.Software>\n"
+ " <vendor>walness</vendor>\n"
+ " <name>xstream</name>\n"
+ " </model.Software>\n"
+ " <org.codehaus.acceptance.AliasTest_-TypeA>\n"
+ " <attrA>testA</attrA>\n"
+ " </org.codehaus.acceptance.AliasTest_-TypeA>\n"
+ " </things>\n"
+ "</model.foo.WithList>";
assertBothWays(withList, xml);
}
public void testClassTakesPrecedenceOfPackage() {
WithList withList = new WithList();
withList.things.add(new Software("walness", "xstream"));
xstream.alias("MySoftware", Software.class);
xstream.aliasPackage("org.codehaus", "com.thoughtworks");
xstream.aliasPackage("model.foo", "com.thoughtworks.acceptance.someobjects");
String xml = "" //
+ "<model.foo.WithList>\n"
+ " <things>\n"
+ " <MySoftware>\n"
+ " <vendor>walness</vendor>\n"
+ " <name>xstream</name>\n"
+ " </MySoftware>\n"
+ " </things>\n"
+ "</model.foo.WithList>";
assertBothWays(withList, xml);
}
}