private BerkeleyDBTempTargetRepository createTempTargetRepository() {
final File tmp = Files.createTempDir();
final BerkeleyDBTempTargetRepository targets = new BerkeleyDBTempTargetRepository(tmp);
targets.start();
assertTrue(targets.isRunning());
return targets;
}
public void testNoGenerations() {
final BerkeleyDBTempTargetRepository targets = createTempTargetRepository();
try {
assertNull(targets.getOldGeneration(0));
assertNull(targets.getNewGeneration(0));
assertFalse(targets.copyOldToNewGeneration(0, new ArrayList<Long>()));
targets.nextGeneration();
} finally {
targets.stop();
}
}
public void testRotation() {
final BerkeleyDBTempTargetRepository targets = createTempTargetRepository();
try {
assertEquals(targets.locateOrStoreImpl(new MockTempTarget("Foo")), UniqueId.of("Tmp", "0"));
final long t = System.nanoTime();
assertEquals(targets.locateOrStoreImpl(new MockTempTarget("Bar")), UniqueId.of("Tmp", "1"));
assertTrue(targets.copyOldToNewGeneration(0, new ArrayList<Long>()));
targets.nextGeneration();
assertEquals(targets.locateOrStoreImpl(new MockTempTarget("Cow")), UniqueId.of("Tmp", "2"));
assertTrue(targets.copyOldToNewGeneration(t, new ArrayList<Long>()));
targets.nextGeneration();
assertNull(targets.getOldGeneration(0));
assertEquals(targets.getOldGeneration(1), new MockTempTarget("Bar"));
assertEquals(targets.getOldGeneration(2), new MockTempTarget("Cow"));
} finally {
targets.stop();
}
}
