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

   1 /*
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   3  * and other copyright owners as documented in the project's IP log.
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  43
  44 package org.eclipse.jgit.lib;
  45
  46 public class WindowCacheReconfigureTest extends RepositoryTestCase {
  47         public void testConfigureCache_PackedGitLimit_0() {
  48                 try {
  49                         final WindowCacheConfig cfg = new WindowCacheConfig();
  50                         cfg.setPackedGitLimit(0);
  51                         WindowCache.reconfigure(cfg);
  52                         fail("incorrectly permitted PackedGitLimit = 0");
  53                 } catch (IllegalArgumentException e) {
  54                         //
  55                 }
  56         }
  57
  58         public void testConfigureCache_PackedGitWindowSize_0() {
  59                 try {
  60                         final WindowCacheConfig cfg = new WindowCacheConfig();
  61                         cfg.setPackedGitWindowSize(0);
  62                         WindowCache.reconfigure(cfg);
  63                         fail("incorrectly permitted PackedGitWindowSize = 0");
  64                 } catch (IllegalArgumentException e) {
  65                         assertEquals("Invalid window size", e.getMessage());
  66                 }
  67         }
  68
  69         public void testConfigureCache_PackedGitWindowSize_512() {
  70                 try {
  71                         final WindowCacheConfig cfg = new WindowCacheConfig();
  72                         cfg.setPackedGitWindowSize(512);
  73                         WindowCache.reconfigure(cfg);
  74                         fail("incorrectly permitted PackedGitWindowSize = 512");
  75                 } catch (IllegalArgumentException e) {
  76                         assertEquals("Invalid window size", e.getMessage());
  77                 }
  78         }
  79
  80         public void testConfigureCache_PackedGitWindowSize_4097() {
  81                 try {
  82                         final WindowCacheConfig cfg = new WindowCacheConfig();
  83                         cfg.setPackedGitWindowSize(4097);
  84                         WindowCache.reconfigure(cfg);
  85                         fail("incorrectly permitted PackedGitWindowSize = 4097");
  86                 } catch (IllegalArgumentException e) {
  87                         assertEquals("Window size must be power of 2", e.getMessage());
  88                 }
  89         }
  90
  91         public void testConfigureCache_PackedGitOpenFiles_0() {
  92                 try {
  93                         final WindowCacheConfig cfg = new WindowCacheConfig();
  94                         cfg.setPackedGitOpenFiles(0);
  95                         WindowCache.reconfigure(cfg);
  96                         fail("incorrectly permitted PackedGitOpenFiles = 0");
  97                 } catch (IllegalArgumentException e) {
  98                         assertEquals("Open files must be >= 1", e.getMessage());
  99                 }
 100         }
 101
 102         public void testConfigureCache_PackedGitWindowSizeAbovePackedGitLimit() {
 103                 try {
 104                         final WindowCacheConfig cfg = new WindowCacheConfig();
 105                         cfg.setPackedGitLimit(1024);
 106                         cfg.setPackedGitWindowSize(8192);
 107                         WindowCache.reconfigure(cfg);
 108                         fail("incorrectly permitted PackedGitWindowSize > PackedGitLimit");
 109                 } catch (IllegalArgumentException e) {
 110                         assertEquals("Window size must be < limit", e.getMessage());
 111                 }
 112         }
 113
 114         public void testConfigureCache_Limits1() {
 115                 // This test is just to force coverage over some lower bounds for
 116                 // the table. We don't want the table to wind up with too small
 117                 // of a size. This is highly dependent upon the table allocation
 118                 // algorithm actually implemented in WindowCache.
 119                 //
 120                 final WindowCacheConfig cfg = new WindowCacheConfig();
 121                 cfg.setPackedGitLimit(6 * 4096 / 5);
 122                 cfg.setPackedGitWindowSize(4096);
 123                 WindowCache.reconfigure(cfg);
 124         }
 125 }