getdown/src/getdown/core/src/test/java/com/threerings/getdown/cache/GarbageCollectorTest.java

   1 //
   2 // Getdown - application installer, patcher and launcher
   3 // Copyright (C) 2004-2018 Getdown authors
   4 // https://github.com/threerings/getdown/blob/master/LICENSE
   5
   6 package com.threerings.getdown.cache;
   7
   8 import java.io.File;
   9 import java.io.IOException;
  10 import java.util.concurrent.TimeUnit;
  11
  12 import org.junit.*;
  13 import org.junit.rules.TemporaryFolder;
  14
  15 import static org.junit.Assert.*;
  16 import static org.junit.Assume.assumeTrue;
  17
  18 /**
  19  * Validates that cache garbage is collected and deleted correctly.
  20  */
  21 public class GarbageCollectorTest
  22 {
  23     @Before public void setupFiles () throws IOException
  24     {
  25         _cachedFile = _folder.newFile("abc123.jar");
  26         _lastAccessedFile = _folder.newFile("abc123.jar" + ResourceCache.LAST_ACCESSED_FILE_SUFFIX);
  27     }
  28
  29     @Test public void shouldDeleteCacheEntryIfRetentionPeriodIsReached ()
  30     {
  31         gcNow();
  32         assertFalse(_cachedFile.exists());
  33         assertFalse(_lastAccessedFile.exists());
  34     }
  35
  36     @Test public void shouldDeleteCacheFolderIfFolderIsEmpty ()
  37     {
  38         gcNow();
  39         assertFalse(_folder.getRoot().exists());
  40     }
  41
  42     private void gcNow() {
  43         GarbageCollector.collect(_folder.getRoot(), -1);
  44     }
  45
  46     @Test public void shouldKeepFilesInCacheIfRententionPeriodIsNotReached ()
  47     {
  48         GarbageCollector.collect(_folder.getRoot(), TimeUnit.DAYS.toMillis(1));
  49         assertTrue(_cachedFile.exists());
  50         assertTrue(_lastAccessedFile.exists());
  51     }
  52
  53     @Test public void shouldDeleteCachedFileIfLastAccessedFileIsMissing ()
  54     {
  55         assumeTrue(_lastAccessedFile.delete());
  56         gcNow();
  57         assertFalse(_cachedFile.exists());
  58     }
  59
  60     @Test public void shouldDeleteLastAccessedFileIfCachedFileIsMissing ()
  61     {
  62         assumeTrue(_cachedFile.delete());
  63         gcNow();
  64         assertFalse(_lastAccessedFile.exists());
  65     }
  66
  67     @Rule public TemporaryFolder _folder = new TemporaryFolder();
  68
  69     private File _cachedFile;
  70     private File _lastAccessedFile;
  71 }