BeansWrapperBasics.java

/*
 * 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 freemarker.ext.beans;

import static org.junit.Assert.*;

import org.junit.Test;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;

import freemarker.template.Configuration;
import freemarker.template.TemplateModel;
import freemarker.template.TemplateModelException;
import freemarker.template.TemplateModelWithAPISupport;

public class BeansWrapperBasics {

    @SuppressWarnings("boxing")
    @Test
    public void testAPIBuiltInSupport() throws TemplateModelException {
        {
            BeansWrapper bw = new BeansWrapperBuilder(Configuration.VERSION_2_3_0).build();
            assertWrappingResult(StringModel.class, bw.wrap("s"));
            assertWrappingResult(NumberModel.class, bw.wrap(1.5));
            assertWrappingResult(BooleanModel.class, bw.wrap(true));
            assertWrappingResult(CollectionModel.class, bw.wrap(ImmutableList.of(1)));
            assertWrappingResult(MapModel.class, bw.wrap(ImmutableMap.of("a", 1)));
        }
        
        {
            BeansWrapperBuilder bwb = new BeansWrapperBuilder(Configuration.VERSION_2_3_0);
            bwb.setSimpleMapWrapper(true);
            BeansWrapper bw = bwb.build();
            assertWrappingResult(SimpleMapModel.class, bw.wrap(ImmutableMap.of("a", 1)));
        }
    }

    private void assertWrappingResult(Class<? extends TemplateModel> expectedClass, TemplateModel tm)
            throws TemplateModelException {
        assertTrue(expectedClass.isInstance(tm));
        // All BeansWrapper products support `?api`:
        assertTrue(((TemplateModelWithAPISupport) tm).getAPI() instanceof APIModel);
    }

}