com.cedarsoft.serialization.jackson.NullSerializerTest.java Source code

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Here is the source code for com.cedarsoft.serialization.jackson.NullSerializerTest.java

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/**
 * Copyright (C) cedarsoft GmbH.
 *
 * Licensed under the GNU General Public License version 3 (the "License")
 * with Classpath Exception; you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 *         http://www.cedarsoft.org/gpl3ce
 *         (GPL 3 with Classpath Exception)
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 3 only, as
 * published by the Free Software Foundation. cedarsoft GmbH designates this
 * particular file as subject to the "Classpath" exception as provided
 * by cedarsoft GmbH in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 3 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 3 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact cedarsoft GmbH, 72810 Gomaringen, Germany,
 * or visit www.cedarsoft.com if you need additional information or
 * have any questions.
 */

package com.cedarsoft.serialization.jackson;

import com.cedarsoft.test.utils.JsonUtils;
import com.cedarsoft.version.Version;
import com.fasterxml.jackson.core.JsonEncoding;
import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.JsonParser;
import org.junit.*;

import javax.annotation.Nonnull;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;

import static org.junit.Assert.*;

/**
 *
 */
public class NullSerializerTest {
    @Nonnull
    protected NullSerializer getSerializer() throws Exception {
        return new NullSerializer();
    }

    @Test
    public void testIt() throws Exception {
        JsonFactory jsonFactory = JacksonSupport.getJsonFactory();
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        JsonGenerator generator = jsonFactory.createGenerator(out, JsonEncoding.UTF8);

        NullSerializer serializer = getSerializer();
        serializer.serialize(generator, null, Version.valueOf(1, 0, 0));
        generator.close();
        JsonUtils.assertJsonEquals("null", out.toString());

        assertNull(serializer.deserialize(new ByteArrayInputStream(out.toByteArray())));
    }

    @Test
    public void testStep() throws Exception {
        JsonParser parser = JacksonSupport.getJsonFactory()
                .createParser(new ByteArrayInputStream("null".getBytes()));
        assertNull(getSerializer().deserialize(parser));
        JacksonParserWrapper parserWrapper = new JacksonParserWrapper(parser);
        if (parserWrapper.nextToken() != null) {
            throw new JsonParseException("No consumed everything " + parserWrapper.getCurrentToken(),
                    parserWrapper.getCurrentLocation());
        }

        parserWrapper.close();
    }
}