org.spearce.jgit.test/tst/org/spearce/jgit/dircache/DirCacheBasicTest.java

   1 /*
   2  * Copyright (C) 2008, Google Inc.
   3  *
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or
   7  * without modification, are permitted provided that the following
   8  * conditions are met:
   9  *
  10  * - Redistributions of source code must retain the above copyright
  11  *   notice, this list of conditions and the following disclaimer.
  12  *
  13  * - Redistributions in binary form must reproduce the above
  14  *   copyright notice, this list of conditions and the following
  15  *   disclaimer in the documentation and/or other materials provided
  16  *   with the distribution.
  17  *
  18  * - Neither the name of the Git Development Community nor the
  19  *   names of its contributors may be used to endorse or promote
  20  *   products derived from this software without specific prior
  21  *   written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  24  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  25  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  26  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  28  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  29  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  30  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  31  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  32  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  33  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  35  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 package org.spearce.jgit.dircache;
  39
  40 import java.io.File;
  41
  42 import org.spearce.jgit.lib.RepositoryTestCase;
  43
  44 public class DirCacheBasicTest extends RepositoryTestCase {
  45         public void testReadMissing_RealIndex() throws Exception {
  46                 final File idx = new File(db.getDirectory(), "index");
  47                 assertFalse(idx.exists());
  48
  49                 final DirCache dc = DirCache.read(db);
  50                 assertNotNull(dc);
  51                 assertEquals(0, dc.getEntryCount());
  52         }
  53
  54         public void testReadMissing_TempIndex() throws Exception {
  55                 final File idx = new File(db.getDirectory(), "tmp_index");
  56                 assertFalse(idx.exists());
  57
  58                 final DirCache dc = DirCache.read(idx);
  59                 assertNotNull(dc);
  60                 assertEquals(0, dc.getEntryCount());
  61         }
  62
  63         public void testLockMissing_RealIndex() throws Exception {
  64                 final File idx = new File(db.getDirectory(), "index");
  65                 final File lck = new File(db.getDirectory(), "index.lock");
  66                 assertFalse(idx.exists());
  67                 assertFalse(lck.exists());
  68
  69                 final DirCache dc = DirCache.lock(db);
  70                 assertNotNull(dc);
  71                 assertFalse(idx.exists());
  72                 assertTrue(lck.exists());
  73                 assertEquals(0, dc.getEntryCount());
  74
  75                 dc.unlock();
  76                 assertFalse(idx.exists());
  77                 assertFalse(lck.exists());
  78         }
  79
  80         public void testLockMissing_TempIndex() throws Exception {
  81                 final File idx = new File(db.getDirectory(), "tmp_index");
  82                 final File lck = new File(db.getDirectory(), "tmp_index.lock");
  83                 assertFalse(idx.exists());
  84                 assertFalse(lck.exists());
  85
  86                 final DirCache dc = DirCache.lock(idx);
  87                 assertNotNull(dc);
  88                 assertFalse(idx.exists());
  89                 assertTrue(lck.exists());
  90                 assertEquals(0, dc.getEntryCount());
  91
  92                 dc.unlock();
  93                 assertFalse(idx.exists());
  94                 assertFalse(lck.exists());
  95         }
  96
  97         public void testWriteEmptyUnlock_RealIndex() throws Exception {
  98                 final File idx = new File(db.getDirectory(), "index");
  99                 final File lck = new File(db.getDirectory(), "index.lock");
 100                 assertFalse(idx.exists());
 101                 assertFalse(lck.exists());
 102
 103                 final DirCache dc = DirCache.lock(db);
 104                 assertEquals(0, lck.length());
 105                 dc.write();
 106                 assertEquals(12 + 20, lck.length());
 107
 108                 dc.unlock();
 109                 assertFalse(idx.exists());
 110                 assertFalse(lck.exists());
 111         }
 112
 113         public void testWriteEmptyCommit_RealIndex() throws Exception {
 114                 final File idx = new File(db.getDirectory(), "index");
 115                 final File lck = new File(db.getDirectory(), "index.lock");
 116                 assertFalse(idx.exists());
 117                 assertFalse(lck.exists());
 118
 119                 final DirCache dc = DirCache.lock(db);
 120                 assertEquals(0, lck.length());
 121                 dc.write();
 122                 assertEquals(12 + 20, lck.length());
 123
 124                 assertTrue(dc.commit());
 125                 assertTrue(idx.exists());
 126                 assertFalse(lck.exists());
 127                 assertEquals(12 + 20, idx.length());
 128         }
 129
 130         public void testWriteEmptyReadEmpty_RealIndex() throws Exception {
 131                 final File idx = new File(db.getDirectory(), "index");
 132                 final File lck = new File(db.getDirectory(), "index.lock");
 133                 assertFalse(idx.exists());
 134                 assertFalse(lck.exists());
 135                 {
 136                         final DirCache dc = DirCache.lock(db);
 137                         dc.write();
 138                         assertTrue(dc.commit());
 139                         assertTrue(idx.exists());
 140                 }
 141                 {
 142                         final DirCache dc = DirCache.read(db);
 143                         assertEquals(0, dc.getEntryCount());
 144                 }
 145         }
 146
 147         public void testWriteEmptyLockEmpty_RealIndex() throws Exception {
 148                 final File idx = new File(db.getDirectory(), "index");
 149                 final File lck = new File(db.getDirectory(), "index.lock");
 150                 assertFalse(idx.exists());
 151                 assertFalse(lck.exists());
 152                 {
 153                         final DirCache dc = DirCache.lock(db);
 154                         dc.write();
 155                         assertTrue(dc.commit());
 156                         assertTrue(idx.exists());
 157                 }
 158                 {
 159                         final DirCache dc = DirCache.lock(db);
 160                         assertEquals(0, dc.getEntryCount());
 161                         assertTrue(idx.exists());
 162                         assertTrue(lck.exists());
 163                         dc.unlock();
 164                 }
 165         }
 166
 167         public void testBuildThenClear() throws Exception {
 168                 final DirCache dc = DirCache.read(db);
 169
 170                 final String[] paths = { "a.", "a.b", "a/b", "a0b" };
 171                 final DirCacheEntry[] ents = new DirCacheEntry[paths.length];
 172                 for (int i = 0; i < paths.length; i++)
 173                         ents[i] = new DirCacheEntry(paths[i]);
 174
 175                 final DirCacheBuilder b = dc.builder();
 176                 for (int i = 0; i < ents.length; i++)
 177                         b.add(ents[i]);
 178                 b.finish();
 179
 180                 assertEquals(paths.length, dc.getEntryCount());
 181                 dc.clear();
 182                 assertEquals(0, dc.getEntryCount());
 183         }
 184
 185 }