LockTestUncommittedReads


1   package org.apache.ojb.otm;
2   
3   /**
4    * This is the TestSuite based on the ODMG locking documentation
5    */
6   import org.apache.ojb.otm.lock.isolation.TransactionIsolation;
7   import org.apache.ojb.otm.lock.isolation.ReadUncommittedIsolation;
8   
9   public class LockTestUncommittedReads extends LockTestBase
10  {
11      private static Class   CLASS = LockTestUncommittedReads.class;
12  
13      public LockTestUncommittedReads(String   name)
14      {
15          super(name);
16      }
17  
18      protected TransactionIsolation newIsolation()
19      {
20          return new ReadUncommittedIsolation();
21      }
22  
23      /**
24       * Test 1
25       */
26      public void testSingleReadLock()
27      {
28          assertTrue(readLock(_tx1));
29      }
30  
31      /**
32       * Test3
33       */
34      public void testReadThenWrite()
35      {
36          assertTrue(readLock(_tx1));
37          assertTrue(writeLock(_tx1));
38      }
39  
40      /**
41       * Test 4
42       */
43      public void testSingleWriteLock()
44      {
45          assertTrue(writeLock(_tx1));
46      }
47  
48      /**
49       * Test 5
50       */
51      public void testWriteThenRead()
52      {
53          assertTrue(writeLock(_tx1));
54          assertTrue(readLock(_tx1));
55      }
56  
57      /**
58       * Test 6
59       */
60      public void testMultipleReadLock()
61      {
62          assertTrue(readLock(_tx1));
63          assertTrue(readLock(_tx2));
64      }
65  
66      /**
67       * Test 8
68       */
69      public void testWriteWithExistingReader()
70      {
71          assertTrue(readLock(_tx1));
72          assertTrue(writeLock(_tx2));
73      }
74  
75      /**
76       * Test 10
77       */
78      public void testWriteWithMultipleReaders()
79      {
80          assertTrue(readLock(_tx1));
81          assertTrue(readLock(_tx2));
82          assertTrue(writeLock(_tx2));
83      }
84  
85      /**
86       * Test 12
87       */
88      public void testWriteWithMultipleReadersOn1()
89      {
90          assertTrue(readLock(_tx1));
91          assertTrue(readLock(_tx2));
92          assertTrue(writeLock(_tx1));
93      }
94  
95      /**
96       * Test 13
97       */
98      public void testReadWithExistingWriter()
99      {
100         assertTrue(writeLock(_tx1));
101         assertTrue(readLock(_tx2));
102     }
103 
104     /**
105      * Test 14
106      */
107     public void testMultipleWriteLock()
108     {
109         assertTrue(writeLock(_tx1));
110         assertTrue(!writeLock(_tx2));
111     }
112 
113     /**
114      * Test 15
115      */
116     public void testReleaseReadLock()
117     {
118         assertTrue(readLock(_tx1));
119         assertTrue(releaseLock(_tx1));
120         assertTrue(writeLock(_tx2));
121     }
122 
123     /**
124      * Test 17
125      */
126     public void testReleaseWriteLock()
127     {
128         assertTrue(writeLock(_tx1));
129         assertTrue(releaseLock(_tx1));
130         assertTrue(writeLock(_tx2));
131     }
132 
133     /**
134      * Test 18
135      */
136     public void testReadThenRead()
137     {
138         assertTrue(readLock(_tx1));
139         assertTrue(readLock(_tx1));
140     }
141 
142     public static void main(String  [] args)
143     {
144         String  [] arr = {CLASS.getName()};
145         junit.textui.TestRunner.main(arr);
146     }
147 }
148
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