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PropertyTest.java
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PropertyTest.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.struts2.components;
import java.io.StringWriter;
import java.util.Map;
import org.apache.struts2.StrutsInternalTestCase;
import org.apache.struts2.util.StrutsTypeConverter;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.conversion.impl.XWorkConverter;
import com.opensymphony.xwork2.util.ValueStack;
/**
*
*/
public class PropertyTest extends StrutsInternalTestCase {
private XWorkConverter converter;
public void setUp() throws Exception {
super.setUp();
converter = container.getInstance(XWorkConverter.class);
}
public void tearDown() throws Exception {
super.tearDown();
converter = null;
}
public void testNormalBehaviour() {
final ValueStack stack = ActionContext.getContext().getValueStack();
stack.push(new FooBar("foo-value", "bar-value"));
final Property property = new Property(stack);
property.setDefault("default");
property.setValue("foo");
assertPropertyOutput("foo-value", property);
}
public void testDefaultShouldBeOutputIfBeanNotAvailable() {
final ValueStack stack = ActionContext.getContext().getValueStack();
final Property property = new Property(stack);
property.setDefault("default");
property.setValue("foo");
assertPropertyOutput("default", property);
}
public void testDefaultShouldBeOutputIfPropertyIsNull() {
final ValueStack stack = ActionContext.getContext().getValueStack();
stack.push(new FooBar(null, "bar-value"));
final Property property = new Property(stack);
property.setDefault("default");
property.setValue("foo");
assertPropertyOutput("default", property);
}
public void testTopValueShouldReturnTopOfValueStack() {
final ValueStack stack = ActionContext.getContext().getValueStack();
stack.push(new FooBar("foo-value", "bar-value"));
final Property property = new Property(stack);
property.setDefault("default");
property.setValue("top");
assertPropertyOutput("foo-value/bar-value", property);
}
public void testTypeConverterShouldBeUsed() {
final ValueStack stack = ActionContext.getContext().getValueStack();
converter.registerConverter("org.apache.struts2.components.PropertyTest$FooBar", new FooBarConverter());
stack.push(new FooBar("foo-value", "bar-value"));
final Property property = new Property(stack);
property.setDefault("default");
property.setValue("top");
assertPropertyOutput("*foo-value + bar-value*", property);
}
public void testTypeConverterReturningNullShouldLeadToDisplayOfDefaultValue() {
final ValueStack stack = ActionContext.getContext().getValueStack();
converter.registerConverter("org.apache.struts2.components.PropertyTest$FooBar", new FooBarConverter());
stack.push(new FooBar("foo-value", null));
final Property property = new Property(stack);
property.setDefault("default");
property.setValue("top");
assertPropertyOutput("default", property);
}
private static void assertPropertyOutput(String expectedOutput, Property property) {
final StringWriter out = new StringWriter();
assertTrue(property.start(out));
assertEquals(expectedOutput, out.getBuffer().toString());
}
private final class FooBar {
private String foo;
private String bar;
public FooBar(String foo, String bar) {
this.foo = foo;
this.bar = bar;
}
public String getFoo() {
return foo;
}
public String getBar() {
return bar;
}
public String toString() {
return foo + "/" + bar;
}
}
private final class FooBarConverter extends StrutsTypeConverter {
public Object convertFromString(Map context, String[] values, Class toClass) {
return null;
}
public String convertToString(Map context, Object o) {
FooBar fooBar = (FooBar) o;
if (fooBar.getBar() == null) {
return null;
} else {
return "*" + fooBar.getFoo() + " + " + fooBar.getBar() + "*";
}
}
}
}