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Java > Open Source Codes > org > jboss > test > ha > singleton > test > HASingletonSupportUnitTestCase


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15   * Lesser General Public License for more details.
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22 package org.jboss.test.ha.singleton.test;
23  
24 import java.util.ArrayList JavaDoc;
25
26 import junit.framework.TestCase;
27
28 import org.jboss.test.ha.singleton.HASingletonSupportTester;
29
30
31 public class HASingletonSupportUnitTestCase extends TestCase
32 {
33
34   private HASingletonSupportTester singletonSupportTester = null;
35
36   public HASingletonSupportUnitTestCase(String JavaDoc testCaseName)
37   {
38     super(testCaseName);
39   }
40
41
42   public void setUp()
43   {
44     singletonSupportTester = new HASingletonSupportTester();
45   }
46   
47   public void tearDown()
48   {
49     singletonSupportTester = null;
50   }
51   
52   public void testStartService() throws Exception JavaDoc
53   {
54     singletonSupportTester.start();
55
56     // test that the correct start sequence was followed correctly
57 assertEquals("method not invoked as expected",
58       singletonSupportTester.__invokationStack__.pop(), "registerDRMListener");
59     assertEquals("method not invoked as expected",
60       singletonSupportTester.__invokationStack__.pop(), "registerRPCHandler");
61     assertEquals("method not invoked as expected",
62       singletonSupportTester.__invokationStack__.pop(), "setupPartition");
63       
64   }
65
66   public void testStopService() throws Exception JavaDoc
67   {
68     singletonSupportTester.start();
69     singletonSupportTester.stop();
70
71     assertEquals("method not invoked as expected",
72       singletonSupportTester.__invokationStack__.pop(), "unregisterRPCHandler");
73     assertEquals("method not invoked as expected",
74       singletonSupportTester.__invokationStack__.pop(), "unregisterDRMListener");
75     
76   }
77   
78   public void testBecomeMasterNode() throws Exception JavaDoc
79   {
80     singletonSupportTester.start();
81     
82     // register DRM Listener is expected to call back
83 singletonSupportTester.__isDRMMasterReplica__ = true;
84     singletonSupportTester.partitionTopologyChanged( new ArrayList JavaDoc(2), 1);
85
86     // test whether it was elected
87 assertTrue("expected to become master", singletonSupportTester.isMasterNode());
88     
89     // test whether the election sequence was followed correctly
90 assertEquals("method not invoked as expected",
91       singletonSupportTester.__invokationStack__.pop(), "startSingleton");
92     //assertEquals("method not invoked as expected",
93 // singletonSupportTester.__invokationStack__.pop(), "callMethodOnCluster:_stopOldMaster");
94 assertEquals("method not invoked as expected",
95       singletonSupportTester.__invokationStack__.pop(), "makeThisNodeMaster");
96   }
97   
98   public void testBecomeSlaveNodeWithAnotherMaster() throws Exception JavaDoc
99   {
100     singletonSupportTester.start();
101     
102     boolean savedIsMasterNode = singletonSupportTester.isMasterNode();
103     
104     // register DRM Listener is expected to call back
105 singletonSupportTester.__isDRMMasterReplica__ = false;
106     singletonSupportTester.partitionTopologyChanged(new ArrayList JavaDoc(2), 1);
107     
108     // this call back should not change the master/slave status
109 assertEquals("expected to be still in old master/slave state", singletonSupportTester.isMasterNode(), savedIsMasterNode );
110     
111     // the new master is expected to call back
112 singletonSupportTester._stopOldMaster();
113     
114     if (savedIsMasterNode)
115     {
116       assertEquals("this node was the old master, but method not invoked as expected",
117         singletonSupportTester.__invokationStack__.pop(), "stopSingleton");
118     }
119       
120     // now it should be slave
121 assertTrue("expected to be slave", !singletonSupportTester.isMasterNode());
122             
123   }
124
125   public void testStopOnlyNode() throws Exception JavaDoc
126   {
127     singletonSupportTester.start();
128     
129     // register DRM Listener is expected to call back
130 singletonSupportTester.__isDRMMasterReplica__ = true;
131     singletonSupportTester.partitionTopologyChanged( new ArrayList JavaDoc(2), 1);
132
133     // test whether it was elected for master
134 assertTrue("expected to become master", singletonSupportTester.isMasterNode());
135     
136     singletonSupportTester.stop();
137     
138     // register DRM Listener is expected to call back
139 singletonSupportTester.__isDRMMasterReplica__ = false;
140     // since the only node (this one) in the partition is now removed, the replicants list should be empty
141 singletonSupportTester.partitionTopologyChanged(new ArrayList JavaDoc(0), 1);
142     
143     assertTrue("expected to have made a call to _stopOldMater(), thus become slave", !singletonSupportTester.isMasterNode() );
144     
145     assertEquals("method not invoked as expected",
146       singletonSupportTester.__invokationStack__.pop(), "stopSingleton");
147       
148   }
149   
150 }
151
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