1 /***
2 * Redistribution and use in source and binary forms, with or without
3 * modification, are permitted provided that the following conditions are
4 * met :
5 *
6 * . Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 *
9 * . Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * . The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $Id$
29 */
30
31 package jtge.engine.io;
32
33 import java.io.IOException;
34 import java.io.OutputStream;
35 import jtge.engine.command.ICommand;
36 import jtge.util.EasyMockTestCase;
37 import org.easymock.MockControl;
38
39 /***
40 * Abstract test class for bridge output implementations.
41 *
42 * @author Mathieu Champlon
43 * @version $Revision$ $Date$
44 */
45 public abstract class OutputImpTestHelper extends EasyMockTestCase
46 {
47 /***
48 * Tested object.
49 */
50 private IOutputImp output;
51 /***
52 * Mock objects
53 */
54 private OutputStream mockStream;
55 private ICommand mockCommand;
56
57 /***
58 * Factory method to create a concrete IOutputImp.
59 *
60 * @param stream the output stream
61 * @return a concrete IOutputImp
62 */
63 abstract protected IOutputImp create( OutputStream stream );
64
65 protected void setUp()
66 {
67 mockStream = (OutputStream)createMock( OutputStream.class );
68 mockCommand = (ICommand)createMock( ICommand.class );
69 output = create( mockStream );
70 }
71
72 public void testCreateWithNullStreamThrowsAnException()
73 {
74 try
75 {
76 create( null );
77 }
78 catch( Exception e )
79 {
80 return;
81 }
82 fail();
83 }
84
85 public void testCreateDoesNotWriteAnythingToTheStream()
86 {
87 assertFalse( create( mockStream ).isClosed() );
88 }
89
90 public void testCloseForwardsToTheStream() throws IOException
91 {
92 mockStream.close();
93 replay();
94 output.close();
95 }
96
97 public void testWriteThrowsAnExceptionWhenTheStreamDoes() throws IOException
98 {
99 mockStream.write( new byte[0], 0, 0 );
100 control( mockStream ).setMatcher( MockControl.ALWAYS_MATCHER );
101 control( mockStream ).setThrowable( new IOException( "mock_io_exception" ), MockControl.ONE_OR_MORE );
102 replay();
103 try
104 {
105 output.write( mockCommand );
106 }
107 catch( InputOutputException e )
108 {
109 assertFalse( output.isClosed() );
110 return;
111 }
112 verify();
113 fail();
114 }
115
116 public void testWriteNullCommandDoesNotWriteDataToTheStream()
117 {
118 output.write( null );
119 reset();
120 replay();
121 output.write( null );
122 }
123
124 public void testWriteAppendsDataToTheStream() throws IOException
125 {
126 mockStream.write( new byte[0], 0, 0 );
127 control( mockStream ).setMatcher( MockControl.ALWAYS_MATCHER );
128 control( mockStream ).setVoidCallable( MockControl.ONE_OR_MORE );
129 mockStream.flush();
130 control( mockStream ).setVoidCallable( MockControl.ZERO_OR_MORE );
131 replay();
132 output.write( new DummyCommand() );
133 }
134 }