Java TestUtils.createFakeBlock方法代码示例

import com.google.bitcoin.utils.TestUtils; //导入方法依赖的package包/类
@Test
public void singleDownloadPeer2() throws Exception {
    // Check that we don't attempt multiple simultaneous block chain downloads, when adding a new peer in the
    // middle of an existing chain download.
    // Create a couple of peers.
    peerGroup.startAndWait();

    // Create a couple of peers.
    InboundMessageQueuer p1 = connectPeer(1);

    // Set up a little block chain.
    Block b1 = TestUtils.createFakeBlock(blockStore).block;
    Block b2 = TestUtils.makeSolvedTestBlock(b1);
    Block b3 = TestUtils.makeSolvedTestBlock(b2);

    // Expect a zero hash getblocks on p1. This is how the process starts.
    peerGroup.startBlockChainDownload(new AbstractPeerEventListener() {
    });
    GetBlocksMessage getblocks = (GetBlocksMessage) outbound(p1);
    assertEquals(Sha256Hash.ZERO_HASH, getblocks.getStopHash());
    // We give back an inv with some blocks in it.
    InventoryMessage inv = new InventoryMessage(params);
    inv.addBlock(b1);
    inv.addBlock(b2);
    inv.addBlock(b3);
    
    inbound(p1, inv);
    assertTrue(outbound(p1) instanceof GetDataMessage);
    // We hand back the first block.
    inbound(p1, b1);
    // Now we successfully connect to another peer. There should be no messages sent.
    InboundMessageQueuer p2 = connectPeer(2);
    Message message = (Message)outbound(p2);
    assertNull(message == null ? "" : message.toString(), message);
    peerGroup.stop();
}
 

import com.google.bitcoin.utils.TestUtils; //导入方法依赖的package包/类
@Test
public void singleDownloadPeer1() throws Exception {
    // Check that we don't attempt to retrieve blocks on multiple peers.
    peerGroup.startAndWait();

    // Create a couple of peers.
    FakeChannel p1 = connectPeer(1);
    FakeChannel p2 = connectPeer(2);
    assertEquals(2, peerGroup.numConnectedPeers());

    // Set up a little block chain. We heard about b1 but not b2 (it is pending download). b3 is solved whilst we
    // are downloading the chain.
    Block b1 = TestUtils.createFakeBlock(blockStore).block;
    blockChain.add(b1);
    Block b2 = TestUtils.makeSolvedTestBlock(b1);
    Block b3 = TestUtils.makeSolvedTestBlock(b2);

    // Peer 1 and 2 receives an inv advertising a newly solved block.
    InventoryMessage inv = new InventoryMessage(params);
    inv.addBlock(b3);
    // Only peer 1 tries to download it.
    inbound(p1, inv);
    
    assertTrue(outbound(p1) instanceof GetDataMessage);
    assertNull(outbound(p2));
    // Peer 1 goes away, peer 2 becomes the download peer and thus queries the remote mempool.
    closePeer(peerOf(p1));
    // Peer 2 fetches it next time it hears an inv (should it fetch immediately?).
    inbound(p2, inv);
    assertTrue(outbound(p2) instanceof GetDataMessage);
    peerGroup.stop();
}
 

import com.google.bitcoin.utils.TestUtils; //导入方法依赖的package包/类
@Test
public void singleDownloadPeer2() throws Exception {
    // Check that we don't attempt multiple simultaneous block chain downloads, when adding a new peer in the
    // middle of an existing chain download.
    // Create a couple of peers.
    peerGroup.startAndWait();

    // Create a couple of peers.
    FakeChannel p1 = connectPeer(1);

    // Set up a little block chain.
    Block b1 = TestUtils.createFakeBlock(blockStore).block;
    Block b2 = TestUtils.makeSolvedTestBlock(b1);
    Block b3 = TestUtils.makeSolvedTestBlock(b2);

    // Expect a zero hash getblocks on p1. This is how the process starts.
    peerGroup.startBlockChainDownload(new AbstractPeerEventListener() {
    });
    GetBlocksMessage getblocks = (GetBlocksMessage) outbound(p1);
    assertEquals(Sha256Hash.ZERO_HASH, getblocks.getStopHash());
    // We give back an inv with some blocks in it.
    InventoryMessage inv = new InventoryMessage(params);
    inv.addBlock(b1);
    inv.addBlock(b2);
    inv.addBlock(b3);
    
    inbound(p1, inv);
    assertTrue(outbound(p1) instanceof GetDataMessage);
    // We hand back the first block.
    inbound(p1, b1);
    // Now we successfully connect to another peer. There should be no messages sent.
    FakeChannel p2 = connectPeer(2);
    Message message = (Message)outbound(p2);
    assertNull(message == null ? "" : message.toString(), message);
    peerGroup.stop();
}
 

import com.google.bitcoin.utils.TestUtils; //导入方法依赖的package包/类
@Test
public void singleDownloadPeer1() throws Exception {
    // Check that we don't attempt to retrieve blocks on multiple peers.
    peerGroup.startAndWait();

    // Create a couple of peers.
    InboundMessageQueuer p1 = connectPeer(1);
    InboundMessageQueuer p2 = connectPeer(2);
    assertEquals(2, peerGroup.numConnectedPeers());

    // Set up a little block chain. We heard about b1 but not b2 (it is pending download). b3 is solved whilst we
    // are downloading the chain.
    Block b1 = TestUtils.createFakeBlock(blockStore).block;
    blockChain.add(b1);
    Block b2 = TestUtils.makeSolvedTestBlock(b1);
    Block b3 = TestUtils.makeSolvedTestBlock(b2);

    // Peer 1 and 2 receives an inv advertising a newly solved block.
    InventoryMessage inv = new InventoryMessage(params);
    inv.addBlock(b3);
    // Only peer 1 tries to download it.
    inbound(p1, inv);
    pingAndWait(p1);
    
    assertTrue(outbound(p1) instanceof GetDataMessage);
    assertNull(outbound(p2));
    // Peer 1 goes away, peer 2 becomes the download peer and thus queries the remote mempool.
    final SettableFuture<Void> p1CloseFuture = SettableFuture.create();
    peerOf(p1).addEventListener(new AbstractPeerEventListener() {
        @Override
        public void onPeerDisconnected(Peer peer, int peerCount) {
            p1CloseFuture.set(null);
        }
    });
    closePeer(peerOf(p1));
    p1CloseFuture.get();
    // Peer 2 fetches it next time it hears an inv (should it fetch immediately?).
    inbound(p2, inv);
    assertTrue(outbound(p2) instanceof GetDataMessage);
    peerGroup.stop();
}