com.cedarsoft.serialization.jackson.test.compatible.JacksonCompatibleTest.java Source code

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Here is the source code for com.cedarsoft.serialization.jackson.test.compatible.JacksonCompatibleTest.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.test.compatible;

import com.cedarsoft.serialization.jackson.JacksonParserWrapper;
import com.cedarsoft.serialization.jackson.JacksonSupport;
import com.cedarsoft.test.utils.JsonUtils;
import com.fasterxml.jackson.core.JsonEncoding;
import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import org.junit.*;

import java.io.ByteArrayOutputStream;

import static org.assertj.core.api.Assertions.assertThat;

/**
 * @author Johannes Schneider (<a href="mailto:js@cedarsoft.com">js@cedarsoft.com</a>)
 */
public class JacksonCompatibleTest {
    private JsonFactory jsonFactory;
    private ByteArrayOutputStream out;
    private JsonGenerator generator;

    @Before
    public void setUp() throws Exception {
        jsonFactory = JacksonSupport.getJsonFactory();
        out = new ByteArrayOutputStream();
        generator = jsonFactory.createGenerator(out, JsonEncoding.UTF8);
    }

    @Test
    public void testIt() throws Exception {
        generator.writeStartObject();

        generator.writeStringField("street", "Schlossalle");
        generator.writeNumberField("number", 7);

        generator.writeEndObject();

        generator.flush();
        generator.close();

        JsonUtils.assertJsonEquals(getClass().getResource("simple.json"), out.toString());
    }

    @Test
    public void testReadCompatible() throws Exception {
        JsonParser parser = jsonFactory.createJsonParser(getClass().getResource("simple.json"));

        JacksonParserWrapper wrapper = new JacksonParserWrapper(parser);
        wrapper.startObject();
        wrapper.nextField("street");

        assertThat(parser.getText()).isEqualTo("street");
        assertThat(parser.nextToken()).isEqualTo(JsonToken.VALUE_STRING);
        assertThat(parser.getText()).isEqualTo("Schlossalle");

        wrapper.nextField("number");

        assertThat(parser.nextToken()).isEqualTo(JsonToken.VALUE_NUMBER_INT);
        assertThat(parser.getValueAsInt()).isEqualTo(7);

        assertThat(parser.nextToken()).isEqualTo(JsonToken.END_OBJECT);

        wrapper.ensureObjectClosed();
    }
}