/protocols/smpp/src/test/java/org/mobicents/protocols/smpp/message/param/CStringParamDescriptorTest.java

 1/*
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 3 * Copyright 2011, Red Hat, Inc. and individual contributors
 4 * by the @authors tag. See the copyright.txt in the distribution for a
 5 * full listing of individual contributors.
 6 *
 7 * This is free software; you can redistribute it and/or modify it
 8 * under the terms of the GNU Lesser General Public License as
 9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22
23package org.mobicents.protocols.smpp.message.param;
24
25import static org.testng.Assert.assertEquals;
26
27import java.io.ByteArrayOutputStream;
28
29import org.testng.annotations.Test;
30
31import org.mobicents.protocols.smpp.message.param.CStringParamDescriptor;
32import org.mobicents.protocols.smpp.util.PacketDecoderImpl;
33import org.mobicents.protocols.smpp.util.PacketEncoderImpl;
34
35@Test
36public class CStringParamDescriptorTest {
37
38    private final String testString = new String("A test string");
39    private CStringParamDescriptor descriptor = new CStringParamDescriptor();
40    
41    public void testSizeOf() {
42        assertEquals(descriptor.sizeOf(null), 1);
43        assertEquals(descriptor.sizeOf(""), 1);
44        assertEquals(descriptor.sizeOf(testString), testString.length() + 1);
45    }
46    
47    public void testWriteNullString() throws Exception {
48        ByteArrayOutputStream out = new ByteArrayOutputStream();
49        PacketEncoderImpl encoder = new PacketEncoderImpl(out);
50        descriptor.writeObject(null, encoder);
51        byte[] array = out.toByteArray();
52        assertEquals(array.length, 1);
53        assertEquals(array[0], (byte) 0);
54    }
55    
56    public void testWriteEmptyString() throws Exception {
57        ByteArrayOutputStream out = new ByteArrayOutputStream();
58        PacketEncoderImpl encoder = new PacketEncoderImpl(out);
59        descriptor.writeObject("", encoder);
60        byte[] array = out.toByteArray();
61        assertEquals(array.length, 1);
62        assertEquals(array[0], (byte) 0);
63    }
64
65    public void testWriteString() throws Exception {
66        ByteArrayOutputStream out = new ByteArrayOutputStream();
67        PacketEncoderImpl encoder = new PacketEncoderImpl(out);
68        descriptor.writeObject(testString, encoder);
69        byte[] array = out.toByteArray();
70        assertEquals(array.length, testString.length() + 1);
71        assertEquals(array[array.length - 1], (byte) 0);
72        assertEquals(new String(array, 0, array.length - 1, "US-ASCII"), testString);
73    }
74
75    public void testReadEmptyString() throws Exception {
76        PacketDecoderImpl decoder = new PacketDecoderImpl(new byte[] {0});
77        String string = (String) descriptor.readObject(decoder, 0);
78        assertEquals(string, "");
79    }
80
81    public void testReadString() throws Exception {
82        byte[] array = new byte[testString.length() + 1];
83        System.arraycopy(testString.getBytes("US-ASCII"), 0, array, 0, testString.length());
84        array[array.length - 1] = (byte) 0;
85        PacketDecoderImpl decoder = new PacketDecoderImpl(array);
86        String string = (String) descriptor.readObject(decoder, 0);
87        assertEquals(string, testString);
88        assertEquals(decoder.getParsePosition(), testString.length() + 1);
89    }
90}