org.restexpress.serialization.json.GsonJsonProcessorTest.java Source code

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Here is the source code for org.restexpress.serialization.json.GsonJsonProcessorTest.java

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/*
Copyright 2011, Strategic Gains, Inc.
    
   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.restexpress.serialization.json;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;

import java.nio.ByteBuffer;
import java.util.Calendar;
import java.util.TimeZone;

import org.junit.Before;
import org.junit.Test;
import org.restexpress.ContentType;
import org.restexpress.serialization.KnownObject;
import org.restexpress.serialization.SerializationProcessor;

/**
 * @author toddf
 * @since Aug 4, 2011
 */
public class GsonJsonProcessorTest {
    private static final String JSON = "{\"integer\":2,\"string\":\"another string value\",\"date\":\"1963-12-06T12:30:00.000Z\",\"p\":\"good stuff\"}";
    private static final String JSON_UTF8 = "{\"integer\":2,\"string\":\"?\",\"date\":\"1963-12-06T12:30:00.000Z\"}";

    private SerializationProcessor processor = new GsonJsonProcessor();

    @Before
    public void setup() {
        TimeZone.setDefault(TimeZone.getTimeZone("UTC"));
    }

    @Test
    public void shouldSerializeObject() {
        ByteBuffer jsonBuf = processor.serialize(new KnownObject());
        String json = new String(jsonBuf.array(), ContentType.CHARSET);
        assertNotNull(json);
        assertTrue(json.startsWith("{"));
        assertTrue(json.contains("\"integer\":1"));
        assertTrue(json.contains("\"string\":\"string value\""));
        assertTrue(json.contains("\"date\":\"1964-12-17T"));
        assertTrue(json.contains("\"p\":\"something private"));
        assertFalse(json.contains("\"q\":"));
        assertTrue(json.endsWith("}"));
    }

    @Test
    public void shouldSerializeNull() {
        ByteBuffer jsonBuf = processor.serialize(null);
        assertEquals("", new String(jsonBuf.array(), ContentType.CHARSET));
    }

    @Test
    public void shouldDeserializeObject() {
        KnownObject o = processor.deserialize(JSON, KnownObject.class);
        assertNotNull(o);
        assertTrue(o.getClass().isAssignableFrom(KnownObject.class));
        assertEquals(2, o.integer);
        assertEquals("another string value", o.string);
        Calendar c = Calendar.getInstance();
        c.setTime(o.date);
        assertEquals(11, c.get(Calendar.MONTH));
        assertEquals(6, c.get(Calendar.DAY_OF_MONTH));
        assertEquals(1963, c.get(Calendar.YEAR));
        assertEquals("good stuff", o.getP());
    }

    @Test
    public void shouldDeserializeEmptyObject() {
        KnownObject o = processor.deserialize("{}", KnownObject.class);
        assertNotNull(o);
        assertTrue(o.getClass().isAssignableFrom(KnownObject.class));
    }

    @Test
    public void shouldDeserializeEmptyString() {
        Object o = processor.deserialize("", KnownObject.class);
        assertNull(o);
    }

    @Test
    public void shouldDeserializeNullString() {
        Object o = processor.deserialize((String) null, KnownObject.class);
        assertNull(o);
    }

    @Test
    public void shouldDeserializeChannelBuffer() {
        ByteBuf buf = Unpooled.copiedBuffer(JSON, ContentType.CHARSET);
        Object o = processor.deserialize(buf, KnownObject.class);
        assertNotNull(o);
    }

    @Test
    public void shouldDeserializeEmptyChannelBuffer() {
        ByteBuf buf = Unpooled.EMPTY_BUFFER;
        Object o = processor.deserialize(buf, KnownObject.class);
        assertNull(o);
    }

    @Test
    public void shouldDeserializeUTF8ChannelBuffer() {
        KnownObject o = processor.deserialize(Unpooled.wrappedBuffer(JSON_UTF8.getBytes(ContentType.CHARSET)),
                KnownObject.class);
        assertNotNull(o);
        assertTrue(o.getClass().isAssignableFrom(KnownObject.class));
        assertEquals(2, o.integer);
        assertEquals("?", o.string);
        Calendar c = Calendar.getInstance();
        c.setTime(o.date);
        assertEquals(11, c.get(Calendar.MONTH));
        assertEquals(6, c.get(Calendar.DAY_OF_MONTH));
        assertEquals(1963, c.get(Calendar.YEAR));
    }

    @Test
    public void shouldEncodeSerializedXssJsonArray() {
        KnownObject ko = new KnownObject();
        ko.sa = new String[] { "this", "is", "an", "evil", "Json", "<script>alert(\'xss')</script>" };
        ByteBuffer jsonBuf = processor.serialize(ko);
        String json = new String(jsonBuf.array(), ContentType.CHARSET);
        assertNotNull(json);
        assertTrue(json.startsWith("{"));
        assertTrue(json.contains("\"integer\":1"));
        assertTrue(json.contains("\"string\":\"string value\""));
        assertTrue(json.contains("\"date\":\"1964-12-17T23:30:00.000Z"));
        assertTrue(json.contains("\"p\":\"something private"));
        assertFalse(json.contains("\"q\":"));
        assertTrue(json.contains(
                "\"sa\":[\"this\",\"is\",\"an\",\"evil\",\"Json\",\"&lt;script&gt;alert('xss')&lt;/script&gt;\"]"));
        assertTrue(json.endsWith("}"));
    }

    @Test
    public void shouldEncodeSerializedXssJsonString() {
        KnownObject ko = new KnownObject();
        ko.string = "<script>alert('xss')</script>";
        ByteBuffer jsonBuf = processor.serialize(ko);
        String json = new String(jsonBuf.array(), ContentType.CHARSET);
        assertNotNull(json);
        assertTrue(json.startsWith("{"));
        assertTrue(json.contains("\"integer\":1"));
        assertTrue(json.contains("\"string\":\"&lt;script&gt;alert('xss')&lt;/script&gt;"));
        assertTrue(json.contains("\"date\":\"1964-12-17T23:30:00.000Z"));
        assertTrue(json.contains("\"p\":\"something private"));
        assertFalse(json.contains("\"q\":"));
        assertFalse(json.contains("\"sa\":"));
        assertTrue(json.endsWith("}"));
    }
}