public void testGetMinTransaction() throws Exception {
LinkedList list = new LinkedList();
for (int i = 0; i < 100; i++) {
TestClientTransaction tx = new TestClientTransaction();
tx.sequenceID = new SequenceID(i);
tx.txID = new TransactionID(i);
tx.txnType = TxnType.NORMAL;
list.add(tx);
writer.addTransaction(tx);
}
writer.wait4AllTxns2Serialize();
assertSame(
((ClientTransaction) list.getFirst()).getSequenceID(), writer.getMinTransactionSequence());
// remove some from the middle and make sure the min is constant
for (int i = 50; i < 55; i++) {
ClientTransaction tx = (ClientTransaction) list.remove(i);
writer.removeTransaction(tx.getTransactionID());
assertSame(
((ClientTransaction) list.getFirst()).getSequenceID(),
writer.getMinTransactionSequence());
}
// now remove the leastmost transaction and make sure the min increases.
for (Iterator i = list.iterator(); i.hasNext(); ) {
ClientTransaction tx = (ClientTransaction) i.next();
assertSame(
((ClientTransaction) list.getFirst()).getSequenceID(),
writer.getMinTransactionSequence());
i.remove();
writer.removeTransaction(tx.getTransactionID());
}
}
