/*
* Copyright 2002-2015 the original author or authors.
*
* Licensed 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.springframework.web.servlet.tags;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.Tag;
import javax.servlet.jsp.tagext.TagSupport;
import org.junit.Before;
import org.junit.Test;
import org.springframework.mock.web.test.MockBodyContent;
import org.springframework.mock.web.test.MockHttpServletResponse;
import static org.junit.Assert.*;
/**
* Unit tests for {@link ParamTag}.
*
* @author Scott Andrews
* @author Nicholas Williams
*/
public class ParamTagTests extends AbstractTagTests {
private final ParamTag tag = new ParamTag();
private MockParamSupportTag parent = new MockParamSupportTag();
@Before
public void setUp() throws Exception {
PageContext context = createPageContext();
tag.setPageContext(context);
tag.setParent(parent);
}
@Test
public void paramWithNameAndValue() throws JspException {
tag.setName("name");
tag.setValue("value");
int action = tag.doEndTag();
assertEquals(Tag.EVAL_PAGE, action);
assertEquals("name", parent.getParam().getName());
assertEquals("value", parent.getParam().getValue());
}
@Test
public void paramWithBodyValue() throws JspException {
tag.setName("name");
tag.setBodyContent(new MockBodyContent("value", new MockHttpServletResponse()));
int action = tag.doEndTag();
assertEquals(Tag.EVAL_PAGE, action);
assertEquals("name", parent.getParam().getName());
assertEquals("value", parent.getParam().getValue());
}
@Test
public void paramWithImplicitNullValue() throws JspException {
tag.setName("name");
int action = tag.doEndTag();
assertEquals(Tag.EVAL_PAGE, action);
assertEquals("name", parent.getParam().getName());
assertNull(parent.getParam().getValue());
}
@Test
public void paramWithExplicitNullValue() throws JspException {
tag.setName("name");
tag.setValue(null);
int action = tag.doEndTag();
assertEquals(Tag.EVAL_PAGE, action);
assertEquals("name", parent.getParam().getName());
assertNull(parent.getParam().getValue());
}
@Test
public void paramWithValueThenReleaseThenBodyValue() throws JspException {
tag.setName("name1");
tag.setValue("value1");
int action = tag.doEndTag();
assertEquals(Tag.EVAL_PAGE, action);
assertEquals("name1", parent.getParam().getName());
assertEquals("value1", parent.getParam().getValue());
tag.release();
parent = new MockParamSupportTag();
tag.setPageContext(createPageContext());
tag.setParent(parent);
tag.setName("name2");
tag.setBodyContent(new MockBodyContent("value2", new MockHttpServletResponse()));
action = tag.doEndTag();
assertEquals(Tag.EVAL_PAGE, action);
assertEquals("name2", parent.getParam().getName());
assertEquals("value2", parent.getParam().getValue());
}
@Test(expected = JspException.class)
public void paramWithNoParent() throws Exception {
tag.setName("name");
tag.setValue("value");
tag.setParent(null);
tag.doEndTag();
}
@SuppressWarnings("serial")
private class MockParamSupportTag extends TagSupport implements ParamAware {
private Param param;
@Override
public void addParam(Param param) {
this.param = param;
}
public Param getParam() {
return param;
}
}
}