@Test public void freshCurrentKeys() throws Exception { int numKeys = ((group.getLookaheadSize() + group.getLookaheadThreshold()) * 2) // * 2 because of internal/external + 1 // keys issued + 3 /* account key + int/ext parent keys */; assertEquals(numKeys, group.numKeys()); assertEquals(2 * numKeys, group.getBloomFilterElementCount()); ECKey r1 = group.currentKey(KeyChain.KeyPurpose.RECEIVE_FUNDS); assertEquals(numKeys, group.numKeys()); assertEquals(2 * numKeys, group.getBloomFilterElementCount()); ECKey i1 = new ECKey(); group.importKeys(i1); numKeys++; assertEquals(numKeys, group.numKeys()); assertEquals(2 * numKeys, group.getBloomFilterElementCount()); ECKey r2 = group.currentKey(KeyChain.KeyPurpose.RECEIVE_FUNDS); assertEquals(r1, r2); ECKey c1 = group.currentKey(KeyChain.KeyPurpose.CHANGE); assertNotEquals(r1, c1); ECKey r3 = group.freshKey(KeyChain.KeyPurpose.RECEIVE_FUNDS); assertNotEquals(r1, r3); ECKey c2 = group.freshKey(KeyChain.KeyPurpose.CHANGE); assertNotEquals(r3, c2); // Current key has not moved and will not under marked as used. ECKey r4 = group.currentKey(KeyChain.KeyPurpose.RECEIVE_FUNDS); assertEquals(r2, r4); ECKey c3 = group.currentKey(KeyChain.KeyPurpose.CHANGE); assertEquals(c1, c3); // Mark as used. Current key is now different. group.markPubKeyAsUsed(r4.getPubKey()); ECKey r5 = group.currentKey(KeyChain.KeyPurpose.RECEIVE_FUNDS); assertNotEquals(r4, r5); }