org.hdiv.web.servlet.view.freemarker.FreeMarkerConfigurerTests.java Source code

Introduction

Here is the source code for org.hdiv.web.servlet.view.freemarker.FreeMarkerConfigurerTests.java

Source

/*
 * Copyright 2005-2008 hdiv.org
 *
 * 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.hdiv.web.servlet.view.freemarker;

import java.io.IOException;
import java.util.HashMap;
import java.util.Properties;

import junit.framework.TestCase;

import org.springframework.core.io.ByteArrayResource;
import org.springframework.core.io.FileSystemResource;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.ui.freemarker.FreeMarkerConfigurationFactoryBean;
import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;
import org.springframework.ui.freemarker.SpringTemplateLoader;
import org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer;

import freemarker.cache.ClassTemplateLoader;
import freemarker.cache.MultiTemplateLoader;
import freemarker.cache.TemplateLoader;
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;

/**
 * @author Gorka Vicente
 */
public class FreeMarkerConfigurerTests extends TestCase {

    public void testTemplateLoaders() throws Exception {
        FreeMarkerConfigurer fc = new FreeMarkerConfigurer();
        fc.setTemplateLoaders(new TemplateLoader[] {});
        fc.afterPropertiesSet();
        assertTrue(fc.getConfiguration().getTemplateLoader() instanceof ClassTemplateLoader);

        fc = new FreeMarkerConfigurer();
        fc.setTemplateLoaders(new TemplateLoader[] { new ClassTemplateLoader() });
        fc.afterPropertiesSet();
        assertTrue(fc.getConfiguration().getTemplateLoader() instanceof MultiTemplateLoader);
    }

    public void testFreemarkerConfigurationFactoryBeanWithConfigLocation() throws TemplateException {
        FreeMarkerConfigurationFactoryBean fcfb = new FreeMarkerConfigurationFactoryBean();
        fcfb.setConfigLocation(new FileSystemResource("myprops.properties"));
        Properties props = new Properties();
        props.setProperty("myprop", "/mydir");
        fcfb.setFreemarkerSettings(props);
        try {
            fcfb.afterPropertiesSet();
            fail("Should have thrown IOException");
        } catch (IOException ex) {
            // expected
        }
    }

    public void testFreeMarkerConfigurationFactoryBeanWithResourceLoaderPath() throws Exception {
        FreeMarkerConfigurationFactoryBean fcfb = new FreeMarkerConfigurationFactoryBean();
        fcfb.setTemplateLoaderPath("file:/mydir");
        fcfb.afterPropertiesSet();
        Configuration cfg = (Configuration) fcfb.getObject();
        assertTrue(cfg.getTemplateLoader() instanceof SpringTemplateLoader);
    }

    public void testFreemarkerConfigurationFactoryBeanWithNonFileResourceLoaderPath()
            throws IOException, TemplateException {
        FreeMarkerConfigurationFactoryBean fcfb = new FreeMarkerConfigurationFactoryBean();
        fcfb.setTemplateLoaderPath("file:/mydir");
        Properties settings = new Properties();
        settings.setProperty("localized_lookup", "false");
        fcfb.setFreemarkerSettings(settings);
        fcfb.setResourceLoader(new ResourceLoader() {
            public Resource getResource(String location) {
                if (!("file:/mydir".equals(location) || "file:/mydir/test".equals(location))) {
                    throw new IllegalArgumentException(location);
                }
                return new ByteArrayResource("test".getBytes(), "test");
            }

            public ClassLoader getClassLoader() {
                return getClass().getClassLoader();
            }
        });
        fcfb.afterPropertiesSet();
        assertTrue(fcfb.getObject() instanceof Configuration);
        Configuration fc = (Configuration) fcfb.getObject();
        Template ft = fc.getTemplate("test");
        assertEquals("test", FreeMarkerTemplateUtils.processTemplateIntoString(ft, new HashMap()));
    }

}