|
1
18 package org.apache.activemq.transport.reliable;
19
20 import junit.framework.TestCase;
21
22 import org.apache.activemq.command.ConsumerInfo;
23 import org.apache.activemq.transport.StubTransport;
24 import org.apache.activemq.transport.StubTransportListener;
25 import org.apache.commons.logging.Log;
26 import org.apache.commons.logging.LogFactory;
27
28 import java.util.Queue  ;
29
30
34 public class ReliableTransportTest extends TestCase {
35
36 protected static final Log log = LogFactory.getLog(ReliableTransportTest.class);
37
38 protected ReliableTransport transport;
39 protected StubTransportListener listener = new StubTransportListener();
40 protected ReplayStrategy replayStrategy;
41
42 public void testValidSequenceOfPackets() throws Exception {
43 int[] sequenceNumbers = { 1, 2, 3, 4, 5, 6, 7 };
44
45 sendStreamOfCommands(sequenceNumbers, true);
46 }
47
48 public void testValidWrapAroundPackets() throws Exception {
49 int[] sequenceNumbers = new int[10];
50
51 int value = Integer.MAX_VALUE - 3;
52 transport.setExpectedCounter(value);
53
54 for (int i = 0; i < 10; i++) {
55 log.info("command: " + i + " = " + value);
56 sequenceNumbers[i] = value++;
57 }
58
59 sendStreamOfCommands(sequenceNumbers, true);
60 }
61
62 public void testDuplicatePacketsDropped() throws Exception {
63 int[] sequenceNumbers = { 1, 2, 2, 3, 4, 5, 6, 7 };
64
65 sendStreamOfCommands(sequenceNumbers, true, 7);
66 }
67
68 public void testOldDuplicatePacketsDropped() throws Exception {
69 int[] sequenceNumbers = { 1, 2, 3, 4, 5, 2, 6, 7 };
70
71 sendStreamOfCommands(sequenceNumbers, true, 7);
72 }
73
74 public void testOldDuplicatePacketsDroppedUsingNegativeCounters() throws Exception {
75 int[] sequenceNumbers = { -3, -1, -3, -2, -1, 0, 1, -1, 3, 2, 0, 2, 4 };
76
77 transport.setExpectedCounter(-3);
78
79 sendStreamOfCommands(sequenceNumbers, true, 8);
80 }
81
82 public void testWrongOrderOfPackets() throws Exception {
83 int[] sequenceNumbers = { 4, 3, 1, 5, 2, 7, 6, 8, 10, 9 };
84
85 sendStreamOfCommands(sequenceNumbers, true);
86 }
87
88 public void testMissingPacketsFails() throws Exception {
89 int[] sequenceNumbers = { 1, 2, 4, 5, 6, 7, 8, 9, 10 };
90
91 sendStreamOfCommands(sequenceNumbers, false);
92 }
93
94 protected void sendStreamOfCommands(int[] sequenceNumbers, boolean expected) {
95 sendStreamOfCommands(sequenceNumbers, expected, sequenceNumbers.length);
96 }
97
98 protected void sendStreamOfCommands(int[] sequenceNumbers, boolean expected, int expectedCount) {
99 for (int i = 0; i < sequenceNumbers.length; i++) {
100 int commandId = sequenceNumbers[i];
101
102 ConsumerInfo info = new ConsumerInfo();
103 info.setSelector("Cheese: " + commandId);
104 info.setCommandId(commandId);
105
106 transport.onCommand(info);
107 }
108
109 Queue exceptions = listener.getExceptions();
110 Queue commands = listener.getCommands();
111 if (expected) {
112 if (!exceptions.isEmpty()) {
113 Exception e = (Exception ) exceptions.remove();
114 e.printStackTrace();
115 fail("Caught exception: " + e);
116 }
117 assertEquals("number of messages received", expectedCount, commands.size());
118
119 assertEquals("Should have no buffered commands", 0, transport.getBufferedCommandCount());
120 }
121 else {
122 assertTrue("Should have received an exception!", exceptions.size() > 0);
123 Exception e = (Exception ) exceptions.remove();
124 log.info("Caught expected response: " + e);
125 }
126 }
127
128 protected void setUp() throws Exception {
129 if (replayStrategy == null) {
130 replayStrategy = new ExceptionIfDroppedReplayStrategy();
131 }
132 transport = new ReliableTransport(new StubTransport(), replayStrategy);
133 transport.setTransportListener(listener);
134 transport.start();
135 }
136
137 }
138 |
Popular Tags |
Java API By Example, From Geeks To Geeks.