org.springframework.http.converter.json.MappingJackson2HttpMessageConverterTests.java Source code

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Here is the source code for org.springframework.http.converter.json.MappingJackson2HttpMessageConverterTests.java

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/*
 * Copyright 2002-2014 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.http.converter.json;

import java.lang.reflect.Type;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;

import org.springframework.http.MockHttpOutputMessage;

import android.os.Build;
import android.util.Log;

import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * @author Roy Clarkson
 */
public class MappingJackson2HttpMessageConverterTests
        extends AbstractMappingJacksonHttpMessageConverterTests<MappingJackson2HttpMessageConverter> {

    private static final String TAG = MappingJackson2HttpMessageConverterTests.class.getSimpleName();

    @Override
    public void setUp() throws Exception {
        super.setUp();
        this.converter = new MappingJackson2HttpMessageConverter();
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.GINGERBREAD) {
            Log.w(TAG, "Jackson 2.4 is not supported on Android 2.2 and older");
        }
    }

    protected void prepareReadGenericsTest() {
        this.converter = new MappingJackson2HttpMessageConverter() {

            @Override
            protected JavaType getJavaType(Type type, Class<?> contextClass) {
                if (type instanceof Class && List.class.isAssignableFrom((Class<?>) type)) {
                    return new ObjectMapper().getTypeFactory().constructCollectionType(ArrayList.class,
                            MyBean.class);
                } else {
                    return super.getJavaType(type, contextClass);
                }
            }
        };
    }

    public void testPrettyPrint() throws Exception {
        MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
        PrettyPrintBean bean = new PrettyPrintBean();
        bean.setName("Jason");

        getConverter().setPrettyPrint(true);
        getConverter().writeInternal(bean, outputMessage);
        String result = outputMessage.getBodyAsString(Charset.forName("UTF-8"));

        assertEquals("{" + NEWLINE_SYSTEM_PROPERTY + "  \"name\" : \"Jason\"" + NEWLINE_SYSTEM_PROPERTY + "}",
                result);
    }

    public void testPrefixJson() throws Exception {
        MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
        getConverter().setPrefixJson(true);
        getConverter().writeInternal("foo", outputMessage);

        assertEquals("{} && \"foo\"", outputMessage.getBodyAsString(Charset.forName("UTF-8")));
    }

    public void testPrefixJsonCustom() throws Exception {
        MockHttpOutputMessage outputMessage = new MockHttpOutputMessage();
        getConverter().setJsonPrefix(")]}',");
        getConverter().writeInternal("foo", outputMessage);

        assertEquals(")]}',\"foo\"", outputMessage.getBodyAsString(Charset.forName("UTF-8")));
    }

    public static class PrettyPrintBean {

        private String name;

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }
    }

}