/*
 * 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
 *
 *      https://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 java.beans.PropertyEditorSupport;
import java.io.StringWriter;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Set;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.Tag;

import org.junit.Test;

import org.springframework.beans.propertyeditors.CustomDateEditor;
import org.springframework.tests.sample.beans.IndexedTestBean;
import org.springframework.tests.sample.beans.NestedTestBean;
import org.springframework.tests.sample.beans.TestBean;
import org.springframework.validation.BindException;
import org.springframework.validation.BindingResult;
import org.springframework.validation.DataBinder;
import org.springframework.validation.Errors;
import org.springframework.web.bind.ServletRequestDataBinder;
import org.springframework.web.servlet.support.BindStatus;
import org.springframework.web.servlet.tags.form.FormTag;
import org.springframework.web.servlet.tags.form.TagWriter;

import static org.junit.Assert.*;

/**
 * @author Juergen Hoeller
 * @author Alef Arendsen
 * @author Mark Fisher
 */
public class BindTagTests extends AbstractTagTests {

	@Test
	public void bindTagWithoutErrors() throws JspException {
		PageContext pc = createPageContext();
		Errors errors = new ServletRequestDataBinder(new TestBean(), "tb").getBindingResult();
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", status.getExpression() == null);
		assertTrue("Correct value", status.getValue() == null);
		assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
		assertTrue("Correct isError", !status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 0);
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 0);
		assertTrue("Correct errorCode", "".equals(status.getErrorCode()));
		assertTrue("Correct errorMessage", "".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessagesAsString", "".equals(status.getErrorMessagesAsString(",")));
	}

	@Test
	public void bindTagWithGlobalErrors() throws JspException {
		PageContext pc = createPageContext();
		Errors errors = new ServletRequestDataBinder(new TestBean(), "tb").getBindingResult();
		errors.reject("code1", "message1");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);

		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", status.getExpression() == null);
		assertTrue("Correct value", status.getValue() == null);
		assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 1);
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 1);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCode()));
		assertTrue("Correct errorMessage", "message1".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessagesAsString", "message1".equals(status.getErrorMessagesAsString(",")));

		tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.*");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "*".equals(status.getExpression()));
		assertTrue("Correct value", status.getValue() == null);
		assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 1);
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 1);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCode()));
		assertTrue("Correct errorMessage", "message1".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessagesAsString", "message1".equals(status.getErrorMessagesAsString(",")));
	}

	@Test
	public void bindTagWithGlobalErrorsAndNoDefaultMessage() throws JspException {
		PageContext pc = createPageContext();
		Errors errors = new ServletRequestDataBinder(new TestBean(), "tb").getBindingResult();
		errors.reject("code1");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);

		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", status.getExpression() == null);
		assertTrue("Correct value", status.getValue() == null);
		assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 1);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCode()));

		tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.*");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "*".equals(status.getExpression()));
		assertTrue("Correct value", status.getValue() == null);
		assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 1);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCode()));
	}

	@Test
	public void bindTagWithGlobalErrorsAndDefaultMessageOnly() throws JspException {
		PageContext pc = createPageContext();
		Errors errors = new ServletRequestDataBinder(new TestBean(), "tb").getBindingResult();
		errors.reject(null, "message1");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);

		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", status.getExpression() == null);
		assertTrue("Correct value", status.getValue() == null);
		assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 1);
		assertTrue("Correct errorMessage", "message1".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessagesAsString", "message1".equals(status.getErrorMessagesAsString(",")));

		tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.*");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "*".equals(status.getExpression()));
		assertTrue("Correct value", status.getValue() == null);
		assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 1);
		assertTrue("Correct errorMessage", "message1".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessagesAsString", "message1".equals(status.getErrorMessagesAsString(",")));
	}

	@Test
	public void bindStatusGetErrorMessagesAsString() throws JspException {
		// one error (should not include delimiter)
		PageContext pc = createPageContext();
		Errors errors = new ServletRequestDataBinder(new TestBean(), "tb").getBindingResult();
		errors.reject("code1", null, "message1");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		tag.doStartTag();
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertEquals("Error messages String should be 'message1'",
				status.getErrorMessagesAsString(","), "message1");

		// two errors
		pc = createPageContext();
		errors = new ServletRequestDataBinder(new TestBean(), "tb").getBindingResult();
		errors.reject("code1", null, "message1");
		errors.reject("code1", null, "message2");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);
		tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		tag.doStartTag();
		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertEquals("Error messages String should be 'message1,message2'",
				status.getErrorMessagesAsString(","), "message1,message2");

		// no errors
		pc = createPageContext();
		errors = new ServletRequestDataBinder(new TestBean(), "tb").getBindingResult();
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);
		tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		tag.doStartTag();
		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertEquals("Error messages String should be ''", status.getErrorMessagesAsString(","), "");
	}

	@Test
	public void bindTagWithFieldErrors() throws JspException {
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		tb.setName("name1");
		Errors errors = new ServletRequestDataBinder(tb, "tb").getBindingResult();
		errors.rejectValue("name", "code1", "message & 1");
		errors.rejectValue("name", "code2", "message2");
		errors.rejectValue("age", "code2", "message2");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);

		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.name");
		tag.setHtmlEscape(true);
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "name".equals(status.getExpression()));
		assertTrue("Correct value", "name1".equals(status.getValue()));
		assertTrue("Correct displayValue", "name1".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 2);
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 2);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCode()));
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCodes()[0]));
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCodes()[1]));
		assertTrue("Correct errorMessage", "message &amp; 1".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessage", "message &amp; 1".equals(status.getErrorMessages()[0]));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessages()[1]));
		assertTrue("Correct errorMessagesAsString",
				"message &amp; 1 - message2".equals(status.getErrorMessagesAsString(" - ")));

		tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.age");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "age".equals(status.getExpression()));
		assertTrue("Correct value", new Integer(0).equals(status.getValue()));
		assertTrue("Correct displayValue", "0".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 1);
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 1);
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCode()));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessagesAsString", "message2".equals(status.getErrorMessagesAsString(" - ")));

		tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.*");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "*".equals(status.getExpression()));
		assertTrue("Correct value", status.getValue() == null);
		assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 3);
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 3);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCode()));
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCodes()[0]));
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCodes()[1]));
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCodes()[2]));
		assertTrue("Correct errorMessage", "message & 1".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessage", "message & 1".equals(status.getErrorMessages()[0]));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessages()[1]));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessages()[2]));
	}

	@Test
	public void bindTagWithFieldErrorsAndNoDefaultMessage() throws JspException {
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		tb.setName("name1");
		Errors errors = new ServletRequestDataBinder(tb, "tb").getBindingResult();
		errors.rejectValue("name", "code1");
		errors.rejectValue("name", "code2");
		errors.rejectValue("age", "code2");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);

		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.name");
		tag.setHtmlEscape(true);
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "name".equals(status.getExpression()));
		assertTrue("Correct value", "name1".equals(status.getValue()));
		assertTrue("Correct displayValue", "name1".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 2);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCode()));
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCodes()[0]));
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCodes()[1]));

		tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.age");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "age".equals(status.getExpression()));
		assertTrue("Correct value", new Integer(0).equals(status.getValue()));
		assertTrue("Correct displayValue", "0".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 1);
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCode()));

		tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.*");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "*".equals(status.getExpression()));
		assertTrue("Correct value", status.getValue() == null);
		assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 3);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCode()));
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCodes()[0]));
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCodes()[1]));
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCodes()[2]));
	}

	@Test
	public void bindTagWithFieldErrorsAndDefaultMessageOnly() throws JspException {
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		tb.setName("name1");
		Errors errors = new ServletRequestDataBinder(tb, "tb").getBindingResult();
		errors.rejectValue("name", null, "message & 1");
		errors.rejectValue("name", null, "message2");
		errors.rejectValue("age", null, "message2");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);

		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.name");
		tag.setHtmlEscape(true);
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "name".equals(status.getExpression()));
		assertTrue("Correct value", "name1".equals(status.getValue()));
		assertTrue("Correct displayValue", "name1".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 2);
		assertTrue("Correct errorMessage", "message &amp; 1".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessage", "message &amp; 1".equals(status.getErrorMessages()[0]));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessages()[1]));
		assertTrue("Correct errorMessagesAsString",
				"message &amp; 1 - message2".equals(status.getErrorMessagesAsString(" - ")));

		tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.age");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "age".equals(status.getExpression()));
		assertTrue("Correct value", new Integer(0).equals(status.getValue()));
		assertTrue("Correct displayValue", "0".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 1);
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessagesAsString", "message2".equals(status.getErrorMessagesAsString(" - ")));

		tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.*");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "*".equals(status.getExpression()));
		assertTrue("Correct value", status.getValue() == null);
		assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 3);
		assertTrue("Correct errorMessage", "message & 1".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessage", "message & 1".equals(status.getErrorMessages()[0]));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessages()[1]));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessages()[2]));
	}

	@Test
	public void bindTagWithNestedFieldErrors() throws JspException {
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		tb.setName("name1");
		TestBean spouse = new TestBean();
		spouse.setName("name2");
		tb.setSpouse(spouse);
		Errors errors = new ServletRequestDataBinder(tb, "tb").getBindingResult();
		errors.rejectValue("spouse.name", "code1", "message1");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.spouse.name");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "spouse.name".equals(status.getExpression()));
		assertTrue("Correct value", "name2".equals(status.getValue()));
		assertTrue("Correct displayValue", "name2".equals(status.getDisplayValue()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 1);
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 1);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCode()));
		assertTrue("Correct errorMessage", "message1".equals(status.getErrorMessage()));
		assertTrue("Correct errorMessagesAsString", "message1".equals(status.getErrorMessagesAsString(" - ")));
	}

	@Test
	public void propertyExposing() throws JspException {
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		tb.setName("name1");
		Errors errors = new BindException(tb, "tb");
		errors.rejectValue("name", "code1", null, "message & 1");
		errors.rejectValue("name", "code2", null, "message2");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);

		// test global property (should be null)
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertNull(tag.getProperty());

		// test property set (tb.name)
		tag.release();
		tag.setPageContext(pc);
		tag.setPath("tb.name");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertEquals("name", tag.getProperty());
	}

	@Test
	public void bindTagWithIndexedProperties() throws JspException {
		PageContext pc = createPageContext();
		IndexedTestBean tb = new IndexedTestBean();
		Errors errors = new ServletRequestDataBinder(tb, "tb").getBindingResult();
		errors.rejectValue("array[0]", "code1", "message1");
		errors.rejectValue("array[0]", "code2", "message2");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);

		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.array[0]");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "array[0]".equals(status.getExpression()));
		assertTrue("Value is TestBean", status.getValue() instanceof TestBean);
		assertTrue("Correct value", "name0".equals(((TestBean) status.getValue()).getName()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 2);
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 2);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCodes()[0]));
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCodes()[1]));
		assertTrue("Correct errorMessage", "message1".equals(status.getErrorMessages()[0]));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessages()[1]));
	}

	@Test
	public void bindTagWithMappedProperties() throws JspException {
		PageContext pc = createPageContext();
		IndexedTestBean tb = new IndexedTestBean();
		Errors errors = new ServletRequestDataBinder(tb, "tb").getBindingResult();
		errors.rejectValue("map[key1]", "code1", "message1");
		errors.rejectValue("map[key1]", "code2", "message2");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);

		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.map[key1]");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "map[key1]".equals(status.getExpression()));
		assertTrue("Value is TestBean", status.getValue() instanceof TestBean);
		assertTrue("Correct value", "name4".equals(((TestBean) status.getValue()).getName()));
		assertTrue("Correct isError", status.isError());
		assertTrue("Correct errorCodes", status.getErrorCodes().length == 2);
		assertTrue("Correct errorMessages", status.getErrorMessages().length == 2);
		assertTrue("Correct errorCode", "code1".equals(status.getErrorCodes()[0]));
		assertTrue("Correct errorCode", "code2".equals(status.getErrorCodes()[1]));
		assertTrue("Correct errorMessage", "message1".equals(status.getErrorMessages()[0]));
		assertTrue("Correct errorMessage", "message2".equals(status.getErrorMessages()[1]));
	}

	@Test
	public void bindTagWithIndexedPropertiesAndCustomEditor() throws JspException {
		PageContext pc = createPageContext();
		IndexedTestBean tb = new IndexedTestBean();
		DataBinder binder = new ServletRequestDataBinder(tb, "tb");
		binder.registerCustomEditor(TestBean.class, null, new PropertyEditorSupport() {
			@Override
			public String getAsText() {
				return "something";
			}
		});
		Errors errors = binder.getBindingResult();
		errors.rejectValue("array[0]", "code1", "message1");
		errors.rejectValue("array[0]", "code2", "message2");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);

		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.array[0]");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertTrue("Correct expression", "array[0]".equals(status.getExpression()));
		// because of the custom editor getValue() should return a String
		assertTrue("Value is TestBean", status.getValue() instanceof String);
		assertTrue("Correct value", "something".equals(status.getValue()));
	}

	@Test
	public void bindTagWithToStringAndHtmlEscaping() throws JspException {
		PageContext pc = createPageContext();
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.doctor");
		tag.setHtmlEscape(true);
		TestBean tb = new TestBean("somebody", 99);
		NestedTestBean ntb = new NestedTestBean("juergen&eva");
		tb.setDoctor(ntb);
		pc.getRequest().setAttribute("tb", tb);
		tag.doStartTag();
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertEquals("doctor", status.getExpression());
		assertTrue(status.getValue() instanceof NestedTestBean);
		assertTrue(status.getDisplayValue().indexOf("juergen&amp;eva") != -1);
	}

	@Test
	public void bindTagWithSetValueAndHtmlEscaping() throws JspException {
		PageContext pc = createPageContext();
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.someSet");
		tag.setHtmlEscape(true);
		pc.getRequest().setAttribute("tb", new TestBean("juergen&eva", 99));
		tag.doStartTag();
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertEquals("someSet", status.getExpression());
		assertTrue(status.getValue() instanceof Set);
	}

	@Test
	public void bindTagWithFieldButWithoutErrorsInstance() throws JspException {
		PageContext pc = createPageContext();
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.name");
		pc.getRequest().setAttribute("tb", new TestBean("juergen&eva", 99));
		tag.doStartTag();
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertEquals("name", status.getExpression());
		assertEquals("juergen&eva", status.getValue());
	}

	@Test
	public void bindTagWithFieldButWithoutErrorsInstanceAndHtmlEscaping() throws JspException {
		PageContext pc = createPageContext();
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb.name");
		tag.setHtmlEscape(true);
		pc.getRequest().setAttribute("tb", new TestBean("juergen&eva", 99));
		tag.doStartTag();
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertEquals("name", status.getExpression());
		assertEquals("juergen&amp;eva", status.getValue());
	}

	@Test
	public void bindTagWithBeanButWithoutErrorsInstance() throws JspException {
		PageContext pc = createPageContext();
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		pc.getRequest().setAttribute("tb", new TestBean("juergen", 99));
		tag.doStartTag();
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertNull(status.getExpression());
		assertNull(status.getValue());
	}

	@Test
	public void bindTagWithoutBean() throws JspException {
		PageContext pc = createPageContext();
		BindTag tag = new BindTag();
		tag.setPageContext(pc);
		tag.setPath("tb");
		try {
			tag.doStartTag();
			fail("Should have thrown JspException");
		}
		catch (JspException ex) {
			// expected
		}
	}


	@Test
	public void bindErrorsTagWithoutErrors() throws JspException {
		PageContext pc = createPageContext();
		Errors errors = new ServletRequestDataBinder(new TestBean(), "tb").getBindingResult();
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);
		BindErrorsTag tag = new BindErrorsTag();
		tag.setPageContext(pc);
		tag.setName("tb");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.SKIP_BODY);
		assertTrue("Doesn't have errors variable", pc.getAttribute(BindErrorsTag.ERRORS_VARIABLE_NAME) == null);
	}

	@Test
	public void bindErrorsTagWithErrors() throws JspException {
		PageContext pc = createPageContext();
		Errors errors = new ServletRequestDataBinder(new TestBean(), "tb").getBindingResult();
		errors.reject("test", null, "test");
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);
		BindErrorsTag tag = new BindErrorsTag();
		tag.setPageContext(pc);
		tag.setName("tb");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		assertTrue("Has errors variable", pc.getAttribute(BindErrorsTag.ERRORS_VARIABLE_NAME, PageContext.REQUEST_SCOPE) == errors);
	}

	@Test
	public void bindErrorsTagWithoutBean() throws JspException {
		PageContext pc = createPageContext();
		BindErrorsTag tag = new BindErrorsTag();
		tag.setPageContext(pc);
		tag.setName("tb");
		assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.SKIP_BODY);
	}


	@Test
	public void nestedPathDoEndTag() throws JspException {
		PageContext pc = createPageContext();
		NestedPathTag tag = new NestedPathTag();
		tag.setPath("foo");
		tag.setPageContext(pc);
		tag.doStartTag();
		int returnValue = tag.doEndTag();
		assertEquals(Tag.EVAL_PAGE, returnValue);
		assertNull(pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));
	}

	@Test
	public void nestedPathDoEndTagWithNesting() throws JspException {
		PageContext pc = createPageContext();
		NestedPathTag tag = new NestedPathTag();
		tag.setPath("foo");
		tag.setPageContext(pc);
		tag.doStartTag();

		NestedPathTag anotherTag = new NestedPathTag();
		anotherTag.setPageContext(pc);
		anotherTag.setPath("bar");
		anotherTag.doStartTag();
		anotherTag.doEndTag();

		assertEquals("foo.", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));

		tag.doEndTag();
		assertNull(pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));
	}

	@Test
	public void nestedPathDoStartTagInternal() throws JspException {
		PageContext pc = createPageContext();
		NestedPathTag tag = new NestedPathTag();
		tag.setPath("foo");
		tag.setPageContext(pc);
		int returnValue = tag.doStartTag();

		assertEquals(Tag.EVAL_BODY_INCLUDE, returnValue);
		assertEquals("foo.", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));
	}

	@Test
	public void nestedPathDoStartTagInternalWithNesting() throws JspException {
		PageContext pc = createPageContext();
		NestedPathTag tag = new NestedPathTag();
		tag.setPath("foo");
		tag.setPageContext(pc);
		tag.doStartTag();
		assertEquals("foo.", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));

		NestedPathTag anotherTag = new NestedPathTag();
		anotherTag.setPageContext(pc);
		anotherTag.setPath("bar");
		anotherTag.doStartTag();

		assertEquals("foo.bar.", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));

		NestedPathTag yetAnotherTag = new NestedPathTag();
		yetAnotherTag.setPageContext(pc);
		yetAnotherTag.setPath("boo");
		yetAnotherTag.doStartTag();

		assertEquals("foo.bar.boo.", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));

		yetAnotherTag.doEndTag();

		NestedPathTag andAnotherTag = new NestedPathTag();
		andAnotherTag.setPageContext(pc);
		andAnotherTag.setPath("boo2");
		andAnotherTag.doStartTag();

		assertEquals("foo.bar.boo2.", pc.getAttribute(NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE));
	}

	@Test
	public void nestedPathWithBindTag() throws JspException {
		PageContext pc = createPageContext();
		Errors errors = new ServletRequestDataBinder(new TestBean(), "tb").getBindingResult();
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);

		NestedPathTag nestedPathTag = new NestedPathTag();
		nestedPathTag.setPath("tb");
		nestedPathTag.setPageContext(pc);
		nestedPathTag.doStartTag();

		BindTag bindTag = new BindTag();
		bindTag.setPageContext(pc);
		bindTag.setPath("name");

		assertTrue("Correct doStartTag return value", bindTag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertEquals("tb.name", status.getPath());
		assertEquals("Correct field value", "", status.getDisplayValue());

		BindTag bindTag2 = new BindTag();
		bindTag2.setPageContext(pc);
		bindTag2.setPath("age");

		assertTrue("Correct doStartTag return value", bindTag2.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status2 = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status2 != null);
		assertEquals("tb.age", status2.getPath());
		assertEquals("Correct field value", "0", status2.getDisplayValue());

		bindTag2.doEndTag();

		BindStatus status3 = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertSame("Status matches previous status", status, status3);
		assertEquals("tb.name", status.getPath());
		assertEquals("Correct field value", "", status.getDisplayValue());

		bindTag.doEndTag();
		nestedPathTag.doEndTag();
	}

	@Test
	public void nestedPathWithBindTagWithIgnoreNestedPath() throws JspException {
		PageContext pc = createPageContext();
		Errors errors = new ServletRequestDataBinder(new TestBean(), "tb2").getBindingResult();
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb2", errors);

		NestedPathTag tag = new NestedPathTag();
		tag.setPath("tb");
		tag.setPageContext(pc);
		tag.doStartTag();

		BindTag bindTag = new BindTag();
		bindTag.setPageContext(pc);
		bindTag.setIgnoreNestedPath(true);
		bindTag.setPath("tb2.name");

		assertTrue("Correct doStartTag return value", bindTag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
		BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		assertTrue("Has status variable", status != null);
		assertEquals("tb2.name", status.getPath());
	}

	@Test
	public void transformTagCorrectBehavior() throws JspException {
		// first set up the pagecontext and the bean
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		ServletRequestDataBinder binder = new ServletRequestDataBinder(tb, "tb");
		CustomDateEditor l = new CustomDateEditor(df, true);
		binder.registerCustomEditor(Date.class, l);
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", binder.getBindingResult());

		// execute the bind tag using the date property
		BindTag bind = new BindTag();
		bind.setPageContext(pc);
		bind.setPath("tb.date");
		bind.doStartTag();

		// transform stuff
		TransformTag transform = new TransformTag();
		transform.setPageContext(pc);
		transform.setParent(bind);
		transform.setValue(tb.getDate());
		transform.setVar("theDate");
		transform.doStartTag();

		assertNotNull(pc.getAttribute("theDate"));
		assertEquals(pc.getAttribute("theDate"), df.format(tb.getDate()));

		// try another time, this time using Strings
		bind = new BindTag();
		bind.setPageContext(pc);
		bind.setPath("tb.name");
		bind.doStartTag();

		transform = new TransformTag();
		transform.setPageContext(pc);
		transform.setValue("name");
		transform.setParent(bind);
		transform.setVar("theString");
		transform.doStartTag();

		assertNotNull(pc.getAttribute("theString"));
		assertEquals("name", pc.getAttribute("theString"));
	}

	@Test
	public void transformTagWithHtmlEscape() throws JspException {
		// first set up the PageContext and the bean
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		ServletRequestDataBinder binder = new ServletRequestDataBinder(tb, "tb");
		CustomDateEditor l = new CustomDateEditor(df, true);
		binder.registerCustomEditor(Date.class, l);
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", binder.getBindingResult());

		// try another time, this time using Strings
		BindTag bind = new BindTag();
		bind.setPageContext(pc);
		bind.setPath("tb.name");
		bind.doStartTag();

		TransformTag transform = new TransformTag();
		transform.setPageContext(pc);
		transform.setValue("na<me");
		transform.setParent(bind);
		transform.setVar("theString");
		transform.setHtmlEscape(true);
		transform.doStartTag();

		assertNotNull(pc.getAttribute("theString"));
		assertEquals("na&lt;me", pc.getAttribute("theString"));
	}

	@Test
	public void transformTagOutsideBindTag() throws JspException {
		// first set up the pagecontext and the bean
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		ServletRequestDataBinder binder = new ServletRequestDataBinder(tb, "tb");
		CustomDateEditor l = new CustomDateEditor(df, true);
		binder.registerCustomEditor(Date.class, l);
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", binder.getBindingResult());

		// now try to execute the tag outside a bindtag
		TransformTag transform = new TransformTag();
		transform.setPageContext(pc);
		transform.setVar("var");
		transform.setValue("bla");
		try {
			transform.doStartTag();
			fail("Tag can be executed outside BindTag");
		}
		catch (JspException e) {
			// this is ok!
		}

		// now try to execute the tag outside a bindtag, but inside a messageTag
		MessageTag message = new MessageTag();
		message.setPageContext(pc);
		transform = new TransformTag();
		transform.setPageContext(pc);
		transform.setVar("var");
		transform.setValue("bla");
		transform.setParent(message);
		try {
			transform.doStartTag();
			fail("Tag can be executed outside BindTag and inside messagtag");
		}
		catch (JspException e) {
			// this is ok!
		}
	}

	@Test
	public void transformTagNonExistingValue() throws JspException {
		// first set up the pagecontext and the bean
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		ServletRequestDataBinder binder = new ServletRequestDataBinder(tb, "tb");
		CustomDateEditor l = new CustomDateEditor(df, true);
		binder.registerCustomEditor(Date.class, l);
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", binder.getBindingResult());

		// try with non-existing value
		BindTag bind = new BindTag();
		bind.setPageContext(pc);
		bind.setPath("tb.name");
		bind.doStartTag();

		TransformTag transform = new TransformTag();
		transform.setPageContext(pc);
		transform.setValue(null);
		transform.setParent(bind);
		transform.setVar("theString2");
		transform.doStartTag();

		assertNull(pc.getAttribute("theString2"));
	}

	@Test
	public void transformTagWithSettingOfScope() throws JspException {
		// first set up the pagecontext and the bean
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		ServletRequestDataBinder binder = new ServletRequestDataBinder(tb, "tb");
		CustomDateEditor l = new CustomDateEditor(df, true);
		binder.registerCustomEditor(Date.class, l);
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", binder.getBindingResult());

		// execute the bind tag using the date property
		BindTag bind = new BindTag();
		bind.setPageContext(pc);
		bind.setPath("tb.date");
		bind.doStartTag();

		// transform stuff
		TransformTag transform = new TransformTag();
		transform.setPageContext(pc);
		transform.setParent(bind);
		transform.setValue(tb.getDate());
		transform.setVar("theDate");
		transform.setScope("page");
		transform.doStartTag();

		transform.release();

		assertNotNull(pc.getAttribute("theDate"));
		assertEquals(df.format(tb.getDate()), pc.getAttribute("theDate"));

		// try another time, this time using Strings
		bind = new BindTag();
		bind.setPageContext(pc);
		bind.setPath("tb.name");
		bind.doStartTag();

		transform = new TransformTag();
		transform.setPageContext(pc);
		transform.setValue("name");
		transform.setParent(bind);
		transform.setVar("theString");
		transform.setScope("page");
		transform.doStartTag();

		transform.release();

		assertNotNull(pc.getAttribute("theString"));
		assertEquals("name", pc.getAttribute("theString"));
	}

	/**
	 * SPR-4022
	 */
	@SuppressWarnings("serial")
	@Test
	public void nestingInFormTag() throws JspException {
		PageContext pc = createPageContext();
		TestBean tb = new TestBean();
		DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		ServletRequestDataBinder binder = new ServletRequestDataBinder(tb, "tb");
		CustomDateEditor l = new CustomDateEditor(df, true);
		binder.registerCustomEditor(Date.class, l);
		pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", binder.getBindingResult());

		FormTag formTag = new FormTag() {
			@Override
			protected TagWriter createTagWriter() {
				return new TagWriter(new StringWriter());
			}
		};

		String action = "/form.html";
		String commandName = "tb";
		String name = "formName";
		String enctype = "my/enctype";
		String method = "POST";
		String onsubmit = "onsubmit";
		String onreset = "onreset";
		String cssClass = "myClass";
		String cssStyle = "myStyle";
		String acceptCharset = "iso-8859-1";

		formTag.setName(name);
		formTag.setCssClass(cssClass);
		formTag.setCssStyle(cssStyle);
		formTag.setAction(action);
		formTag.setCommandName(commandName);
		formTag.setEnctype(enctype);
		formTag.setMethod(method);
		formTag.setOnsubmit(onsubmit);
		formTag.setOnreset(onreset);
		formTag.setAcceptCharset(acceptCharset);

		formTag.setPageContext(pc);
		formTag.doStartTag();

		BindTag bindTag1 = new BindTag();
		bindTag1.setPageContext(pc);
		bindTag1.setPath("date");
		bindTag1.doStartTag();
		bindTag1.doEndTag();

		BindTag bindTag2 = new BindTag();
		bindTag2.setPageContext(pc);
		bindTag2.setPath("tb.date");
		bindTag2.doStartTag();
		bindTag2.doEndTag();

		BindTag bindTag3 = new BindTag();
		bindTag3.setPageContext(pc);
		bindTag3.setPath("tb");
		bindTag3.doStartTag();
		bindTag3.doEndTag();

		formTag.doEndTag();
	}

}
