I18nAccessorTest.java :  » Web-Framework » calyxo » de » odysseus » calyxo » base » misc » Java Open Source

/*
 * Copyright 2004, 2005, 2006 Odysseus Software GmbH
 *
 * 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 de.odysseus.calyxo.base.misc;

import java.util.Locale;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.el.ELException;

import de.odysseus.calyxo.base.I18nSupport;
import de.odysseus.calyxo.base.test.TestI18nSupport;
import de.odysseus.calyxo.base.test.TestModuleGroup;
import de.odysseus.calyxo.base.test.TestModuleContext;
import de.odysseus.calyxo.base.test.TestPageContext;

import junit.framework.TestCase;

/**
 * 
 * @author Christoph Beck
 */
public class I18nAccessorTest extends TestCase {

  private TestPageContext pageContext;
  private TestModuleContext module;

  /**
   * Constructor for I18nViewTest.
   * @param arg0
   */
  public I18nAccessorTest(String arg0) {
    super(arg0);
  }

  protected void setUp() throws ServletException {
    pageContext = new TestPageContext();
    HttpServletRequest request = (HttpServletRequest)pageContext.getRequest();
    // configure test module
    module = new TestModuleContext("test", pageContext.getServletContext());
    // configure module container
    ServletContext context = request.getSession().getServletContext();
    TestModuleGroup group = TestModuleGroup.getInstance(context);
    group.add(module);
    // install i18n support
    I18nSupport support = new TestI18nSupport();
    module.setAttribute(I18nSupport.I18N_SUPPORT_KEY, support);
  }

  protected Object evaluate(Class type, String expression) throws ELException {
    return pageContext.getExpressionEvaluator().evaluate(
      expression,
      type,
      pageContext.getVariableResolver(),
      null
    );
  }

  public void testLanguage() throws ELException {
    HttpServletRequest request =
      (HttpServletRequest)pageContext.getRequest();
    I18nAccessor accessor = new I18nAccessor(module);
    I18nSupport.getInstance(module).setLocale(pageContext, Locale.ENGLISH);
    request.setAttribute("i18n", accessor.get(request));
    assertEquals("en", evaluate(String.class, "${i18n.locale.language}"));
  }

  public void testResource() throws ELException {
    HttpServletRequest request =
      (HttpServletRequest)pageContext.getRequest();
    I18nAccessor accessor = new I18nAccessor(module);
    I18nSupport.getInstance(module).setLocale(pageContext, Locale.ENGLISH);
    request.setAttribute("i18n", accessor.get(request));
    String expr = "${i18n.bundle['bundle'].resource['key']}";
    assertEquals("en.bundle.key", evaluate(String.class, expr));
  }

  public void testMessage() throws ELException {
    HttpServletRequest request =
      (HttpServletRequest)pageContext.getRequest();
    I18nSupport.getInstance(module).setLocale(pageContext, Locale.ENGLISH);
    I18nAccessor accessor = new I18nAccessor(module);
    request.setAttribute("i18n", accessor.get(request));
    String expr = "i18n.bundle['bundle'].message['key']";
    assertEquals("en.bundle.key()", evaluate(String.class, "${" + expr + "}"));
    expr += "['arg1']";
    assertEquals("en.bundle.key(arg1)", evaluate(String.class, "${" + expr + "}"));
    expr += "['arg2']";
    assertEquals("en.bundle.key(arg1,arg2)", evaluate(String.class, "${" + expr + "}"));
  }

  public static void main(String[] args) {
    junit.textui.TestRunner.run(I18nAccessorTest.class);
  }

}