/**
* check that the cache is immutable by changing the data passed in the constructor and returned
* from methods.
*
* @throws TimeStampedCacheException
*/
@Test
public void testImmutable() throws TimeStampedCacheException {
// setup
List<AbsoluteDate> actuals;
List<AbsoluteDate> expecteds = new ArrayList<AbsoluteDate>(data);
AbsoluteDate different = date.shiftedBy(-50);
// actions + verify
// check constructor
data.set(0, different);
Assert.assertArrayEquals(cache.getAll().toArray(), expecteds.toArray());
// check getAll
actuals = cache.getAll();
try {
actuals.set(0, different);
} catch (UnsupportedOperationException e) {
// exception ok
}
Assert.assertArrayEquals(cache.getAll().toArray(), expecteds.toArray());
// check getNeighbors
actuals = cache.getNeighbors(date);
try {
actuals.set(0, different);
} catch (UnsupportedOperationException e) {
// exception ok
}
Assert.assertArrayEquals(cache.getAll().toArray(), expecteds.toArray());
}
/** check {@link ImmutableTimeStampedCache#emptyCache()}. */
@Test
public void testEmptyCache() {
// setup
cache = ImmutableTimeStampedCache.emptyCache();
// actions + verify
try {
cache.getNeighbors(date);
Assert.fail("Expected Exception");
} catch (TimeStampedCacheException e) {
// expected
}
try {
cache.getEarliest();
Assert.fail("Expected Exception");
} catch (IllegalStateException e) {
// expected
}
try {
cache.getLatest();
Assert.fail("Expected Exception");
} catch (IllegalStateException e) {
// expected
}
Assert.assertEquals(cache.getAll().size(), 0);
Assert.assertEquals(cache.getNeighborsSize(), 0);
}
/** check {@link ImmutableTimeStampedCache#getAll()} */
@Test
public void testGetAll() {
Assert.assertArrayEquals(cache.getAll().toArray(), data.toArray());
}