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1
17 package org.apache.log.output.test;
18
19 import java.io.File  ;
20 import java.io.IOException ;
21 import junit.framework.TestCase;
22 import org.apache.log.output.io.rotate.RevolvingFileStrategy;
23
24
29 public final class RevolvingFileStrategyTestCase
30 extends TestCase
31 {
32 private static final int OLD_AGE = 100000000;
33 private static final int YOUNG_AGE = -100000000;
34
35 private final File m_baseFile;
36 private final long m_now = System.currentTimeMillis();
37
38 public RevolvingFileStrategyTestCase( final String name )
39 throws IOException
40 {
41 super( name );
42
43 m_baseFile = ( new File ( "build/testdata/log" ) ).getCanonicalFile();
44 m_baseFile.getParentFile().mkdirs();
45 }
46
47 private void deleteFiles( final int maxRotation )
48 throws IOException
49 {
50 for( int i = 0; i <= maxRotation; i++ )
51 {
52 final File file = new File ( getFilename( i ) );
53 if( file.exists() && !file.delete() )
54 {
55 throw new IOException ( "Failed to delete file " + file );
56 }
57 }
58 }
59
60 private String getFilename( int i )
61 {
62 return m_baseFile.toString() + ".00000" + i;
63 }
64
65 private void createFile( final int rotation, final long age )
66 throws IOException
67 {
68 final File file = new File ( getFilename( rotation ) );
69 if( !file.createNewFile() )
70 {
71 throw new IOException ( "Failed to create file " + file );
72 }
73 final long time = m_now - age;
74 file.setLastModified( time );
75 }
76
77 public void testNew()
78 throws Exception
79 {
80 deleteFiles( 9 );
81
82 final RevolvingFileStrategy strategy =
83 new RevolvingFileStrategy( m_baseFile, 9 );
84
85 assertEquals( "rotation", 0, strategy.getCurrentRotation() );
86 }
87
88 public void testRotationExisting()
89 throws Exception
90 {
91 deleteFiles( 9 );
92 createFile( 0, 0 );
93
94 final RevolvingFileStrategy strategy =
95 new RevolvingFileStrategy( m_baseFile, 9 );
96
97 assertEquals( "rotation", 1, strategy.getCurrentRotation() );
98 }
99
100 public void testRotationExisting2()
101 throws Exception
102 {
103 deleteFiles( 9 );
104 createFile( 0, 0 );
105 createFile( 1, 0 );
106 createFile( 2, 0 );
107 createFile( 3, 0 );
108 createFile( 4, 0 );
109
110 final RevolvingFileStrategy strategy =
111 new RevolvingFileStrategy( m_baseFile, 9 );
112
113 assertEquals( "rotation", 5, strategy.getCurrentRotation() );
114 }
115
116 public void testRotationExistingWithMissing()
117 throws Exception
118 {
119 deleteFiles( 9 );
120 createFile( 0, 0 );
121 createFile( 4, 0 );
122
123 final RevolvingFileStrategy strategy =
124 new RevolvingFileStrategy( m_baseFile, 9 );
125
126 assertEquals( "rotation", 5, strategy.getCurrentRotation() );
127 }
128
129 public void testRotationExistingWithOlderLower()
130 throws Exception
131 {
132 deleteFiles( 9 );
133 createFile( 0, OLD_AGE ); createFile( 4, 0 );
135
136 final RevolvingFileStrategy strategy =
137 new RevolvingFileStrategy( m_baseFile, 9 );
138
139 assertEquals( "rotation", 5, strategy.getCurrentRotation() );
140 }
141
142 public void testRotationExistingWithOlderHigher()
143 throws Exception
144 {
145 deleteFiles( 9 );
146 createFile( 0, 0 );
147 createFile( 4, OLD_AGE );
148
149 final RevolvingFileStrategy strategy =
150 new RevolvingFileStrategy( m_baseFile, 9 );
151
152 assertEquals( "rotation", 5, strategy.getCurrentRotation() );
153 }
154
155 public void testFullRotation()
156 throws Exception
157 {
158 deleteFiles( 9 );
159 createFile( 0, 0 );
160 createFile( 1, 0 );
161 createFile( 2, 0 );
162 createFile( 3, 0 );
163 createFile( 4, 0 );
164 createFile( 5, 0 );
165 createFile( 6, 0 );
166 createFile( 7, 0 );
167 createFile( 8, 0 );
168 createFile( 9, 0 );
169
170 final RevolvingFileStrategy strategy =
171 new RevolvingFileStrategy( m_baseFile, 9 );
172
173 assertEquals( "rotation", 0, strategy.getCurrentRotation() );
174 }
175
176 public void testFullRotationWithOlder()
177 throws Exception
178 {
179 deleteFiles( 9 );
180 createFile( 0, 0 );
181 createFile( 1, 0 );
182 createFile( 2, 0 );
183 createFile( 3, 0 );
184 createFile( 4, 0 );
185 createFile( 5, 0 );
186 createFile( 6, 0 );
187 createFile( 7, OLD_AGE );
188 createFile( 8, 0 );
189 createFile( 9, 0 );
190
191 final RevolvingFileStrategy strategy =
192 new RevolvingFileStrategy( m_baseFile, 9 );
193
194 assertEquals( "rotation", 7, strategy.getCurrentRotation() );
195 }
196 }
197 |
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