org.spearce.jgit.test/tst/org/spearce/jgit/lib/WindowCacheReconfigureTest.java

   1 /*
   2  * Copyright (C) 2009, 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,
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  30  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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  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.lib;
  39
  40 public class WindowCacheReconfigureTest extends RepositoryTestCase {
  41         public void testConfigureCache_PackedGitLimit_0() {
  42                 try {
  43                         final WindowCacheConfig cfg = new WindowCacheConfig();
  44                         cfg.setPackedGitLimit(0);
  45                         WindowCache.reconfigure(cfg);
  46                         fail("incorrectly permitted PackedGitLimit = 0");
  47                 } catch (IllegalArgumentException e) {
  48                         //
  49                 }
  50         }
  51
  52         public void testConfigureCache_PackedGitWindowSize_0() {
  53                 try {
  54                         final WindowCacheConfig cfg = new WindowCacheConfig();
  55                         cfg.setPackedGitWindowSize(0);
  56                         WindowCache.reconfigure(cfg);
  57                         fail("incorrectly permitted PackedGitWindowSize = 0");
  58                 } catch (IllegalArgumentException e) {
  59                         assertEquals("Invalid window size", e.getMessage());
  60                 }
  61         }
  62
  63         public void testConfigureCache_PackedGitWindowSize_512() {
  64                 try {
  65                         final WindowCacheConfig cfg = new WindowCacheConfig();
  66                         cfg.setPackedGitWindowSize(512);
  67                         WindowCache.reconfigure(cfg);
  68                         fail("incorrectly permitted PackedGitWindowSize = 512");
  69                 } catch (IllegalArgumentException e) {
  70                         assertEquals("Invalid window size", e.getMessage());
  71                 }
  72         }
  73
  74         public void testConfigureCache_PackedGitWindowSize_4097() {
  75                 try {
  76                         final WindowCacheConfig cfg = new WindowCacheConfig();
  77                         cfg.setPackedGitWindowSize(4097);
  78                         WindowCache.reconfigure(cfg);
  79                         fail("incorrectly permitted PackedGitWindowSize = 4097");
  80                 } catch (IllegalArgumentException e) {
  81                         assertEquals("Window size must be power of 2", e.getMessage());
  82                 }
  83         }
  84
  85         public void testConfigureCache_PackedGitOpenFiles_0() {
  86                 try {
  87                         final WindowCacheConfig cfg = new WindowCacheConfig();
  88                         cfg.setPackedGitOpenFiles(0);
  89                         WindowCache.reconfigure(cfg);
  90                         fail("incorrectly permitted PackedGitOpenFiles = 0");
  91                 } catch (IllegalArgumentException e) {
  92                         assertEquals("Open files must be >= 1", e.getMessage());
  93                 }
  94         }
  95
  96         public void testConfigureCache_PackedGitWindowSizeAbovePackedGitLimit() {
  97                 try {
  98                         final WindowCacheConfig cfg = new WindowCacheConfig();
  99                         cfg.setPackedGitLimit(1024);
 100                         cfg.setPackedGitWindowSize(8192);
 101                         WindowCache.reconfigure(cfg);
 102                         fail("incorrectly permitted PackedGitWindowSize > PackedGitLimit");
 103                 } catch (IllegalArgumentException e) {
 104                         assertEquals("Window size must be < limit", e.getMessage());
 105                 }
 106         }
 107
 108         public void testConfigureCache_Limits1() {
 109                 // This test is just to force coverage over some lower bounds for
 110                 // the table. We don't want the table to wind up with too small
 111                 // of a size. This is highly dependent upon the table allocation
 112                 // algorithm actually implemented in WindowCache.
 113                 //
 114                 final WindowCacheConfig cfg = new WindowCacheConfig();
 115                 cfg.setPackedGitLimit(6 * 4096 / 5);
 116                 cfg.setPackedGitWindowSize(4096);
 117                 WindowCache.reconfigure(cfg);
 118         }
 119 }