public long decr(String key, long delta, long initValue) {
try {
return memcachedClient.decr(key, delta, initValue);
} catch (Exception e) {
throw new IllegalStateException(e.getMessage(), e);
}
}
public void testDecr() throws Exception {
assertEquals(0, memcachedClient.decr("a", 5));
assertTrue(memcachedClient.set("a", 0, "100"));
assertEquals(50, memcachedClient.decr("a", 50));
assertEquals(46, memcachedClient.decr("a", 4));
// test decr with initValue
memcachedClient.delete("a");
assertEquals(100, memcachedClient.decr("a", 5, 100));
assertEquals(50, memcachedClient.decr("a", 50));
assertEquals(46, memcachedClient.decr("a", 4));
// test decr with initValue and expire time
memcachedClient.delete("a");
assertEquals(1, memcachedClient.decr("a", 5, 1, 1000, 1));
Thread.sleep(2000);
assertNull(memcachedClient.get("a"));
// blank key
new BlankKeyChecker() {
@Override
public void call() throws Exception {
memcachedClient.decr("", 0, 1);
}
}.check();
// null key
new BlankKeyChecker() {
@Override
public void call() throws Exception {
memcachedClient.decr((String) null, 0, 1);
}
}.check();
// invalid key
new InValidKeyChecker() {
@Override
public void call() throws Exception {
memcachedClient.decr("test\r\n", 0, 1);
}
}.check();
new InValidKeyChecker() {
@Override
public void call() throws Exception {
memcachedClient.decr("test test2", 0, 1);
}
}.check();
// key is too long
new TooLongKeyChecker(memcachedClient) {
@Override
public void call() throws Exception {
int keyLength = memcachedClient.getProtocol() == Protocol.Text ? 256 : 65536;
StringBuilder sb = new StringBuilder();
for (int i = 0; i < keyLength; i++) {
sb.append(i);
}
memcachedClient.decr(sb.toString(), 0, 1);
}
}.check();
}