diff options
Diffstat (limited to 'qa/rpc-tests/sendheaders.py')
| -rwxr-xr-x | qa/rpc-tests/sendheaders.py | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/qa/rpc-tests/sendheaders.py b/qa/rpc-tests/sendheaders.py index 6ab17d59b3..c3f3180b6b 100755 --- a/qa/rpc-tests/sendheaders.py +++ b/qa/rpc-tests/sendheaders.py @@ -63,6 +63,21 @@ e. Announce 16 more headers that build on that fork. Expect: getdata request for 14 more blocks. f. Announce 1 more header that builds on that fork. Expect: no response. + +Part 5: Test handling of headers that don't connect. +a. Repeat 10 times: + 1. Announce a header that doesn't connect. + Expect: getheaders message + 2. Send headers chain. + Expect: getdata for the missing blocks, tip update. +b. Then send 9 more headers that don't connect. + Expect: getheaders message each time. +c. Announce a header that does connect. + Expect: no response. +d. Announce 49 headers that don't connect. + Expect: getheaders message each time. +e. Announce one more that doesn't connect. + Expect: disconnect. ''' class BaseNode(NodeConnCB): @@ -77,6 +92,8 @@ class BaseNode(NodeConnCB): self.last_getdata = None self.sleep_time = 0.05 self.block_announced = False + self.last_getheaders = None + self.disconnected = False def clear_last_announcement(self): with mininode_lock: @@ -127,6 +144,12 @@ class BaseNode(NodeConnCB): def on_pong(self, conn, message): self.last_pong = message + def on_getheaders(self, conn, message): + self.last_getheaders = message + + def on_close(self, conn): + self.disconnected = True + # Test whether the last announcement we received had the # right header or the right inv # inv and headers should be lists of block hashes @@ -178,6 +201,11 @@ class BaseNode(NodeConnCB): self.sync(test_function, timeout) return + def wait_for_getheaders(self, timeout=60): + test_function = lambda: self.last_getheaders != None + self.sync(test_function, timeout) + return + def wait_for_getdata(self, hash_list, timeout=60): if hash_list == []: return @@ -186,6 +214,11 @@ class BaseNode(NodeConnCB): self.sync(test_function, timeout) return + def wait_for_disconnect(self, timeout=60): + test_function = lambda: self.disconnected + self.sync(test_function, timeout) + return + def send_header_for_blocks(self, new_blocks): headers_message = msg_headers() headers_message.headers = [ CBlockHeader(b) for b in new_blocks ] @@ -510,6 +543,78 @@ class SendHeadersTest(BitcoinTestFramework): print("Part 4: success!") + # Now deliver all those blocks we announced. + [ test_node.send_message(msg_block(x)) for x in blocks ] + + print("Part 5: Testing handling of unconnecting headers") + # First we test that receipt of an unconnecting header doesn't prevent + # chain sync. + for i in range(10): + test_node.last_getdata = None + blocks = [] + # Create two more blocks. + for j in range(2): + blocks.append(create_block(tip, create_coinbase(height), block_time)) + blocks[-1].solve() + tip = blocks[-1].sha256 + block_time += 1 + height += 1 + # Send the header of the second block -> this won't connect. + with mininode_lock: + test_node.last_getheaders = None + test_node.send_header_for_blocks([blocks[1]]) + test_node.wait_for_getheaders(timeout=1) + test_node.send_header_for_blocks(blocks) + test_node.wait_for_getdata([x.sha256 for x in blocks]) + [ test_node.send_message(msg_block(x)) for x in blocks ] + test_node.sync_with_ping() + assert_equal(int(self.nodes[0].getbestblockhash(), 16), blocks[1].sha256) + + blocks = [] + # Now we test that if we repeatedly don't send connecting headers, we + # don't go into an infinite loop trying to get them to connect. + MAX_UNCONNECTING_HEADERS = 10 + for j in range(MAX_UNCONNECTING_HEADERS+1): + blocks.append(create_block(tip, create_coinbase(height), block_time)) + blocks[-1].solve() + tip = blocks[-1].sha256 + block_time += 1 + height += 1 + + for i in range(1, MAX_UNCONNECTING_HEADERS): + # Send a header that doesn't connect, check that we get a getheaders. + with mininode_lock: + test_node.last_getheaders = None + test_node.send_header_for_blocks([blocks[i]]) + test_node.wait_for_getheaders(timeout=1) + + # Next header will connect, should re-set our count: + test_node.send_header_for_blocks([blocks[0]]) + + # Remove the first two entries (blocks[1] would connect): + blocks = blocks[2:] + + # Now try to see how many unconnecting headers we can send + # before we get disconnected. Should be 5*MAX_UNCONNECTING_HEADERS + for i in range(5*MAX_UNCONNECTING_HEADERS - 1): + # Send a header that doesn't connect, check that we get a getheaders. + with mininode_lock: + test_node.last_getheaders = None + test_node.send_header_for_blocks([blocks[i%len(blocks)]]) + test_node.wait_for_getheaders(timeout=1) + + # Eventually this stops working. + with mininode_lock: + self.last_getheaders = None + test_node.send_header_for_blocks([blocks[-1]]) + + # Should get disconnected + test_node.wait_for_disconnect() + with mininode_lock: + self.last_getheaders = True + + print("Part 5: success!") + # Finally, check that the inv node never received a getdata request, # throughout the test assert_equal(inv_node.last_getdata, None) |