((AWSResource) resource).setAWSResourceState("available");
Date lastDetachTime = new Date(now.minusDays(ageThreshold + 1).getMillis());
String metaTag = VolumeTaggingMonkey.makeMetaTag(null, null, lastDetachTime);
resource.setTag(JanitorMonkey.JANITOR_META_TAG, metaTag);
int retentionDays = 4;
OldDetachedVolumeRule rule = new OldDetachedVolumeRule(new TestMonkeyCalendar(),
ageThreshold, retentionDays);
resource.setTag(JanitorMonkey.JANITOR_TAG, "donotmark");
Assert.assertTrue(rule.isValid(resource));
Assert.assertNull(resource.getExpectedTerminationTime());
}