Initial Vexta Core v0.1.0 release

test/functional/rpc_invalidateblock.py

@@ -0,0 +1,88 @@
+#!/usr/bin/env python3
+# Copyright (c) 2014-2021 The DigiByte Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test the invalidateblock RPC."""
+
+from test_framework.test_framework import DigiByteTestFramework
+from test_framework.address import ADDRESS_BCRT1_UNSPENDABLE_DESCRIPTOR
+from test_framework.util import (
+    assert_equal,
+)
+
+
+class InvalidateTest(DigiByteTestFramework):
+    def set_test_params(self):
+        self.setup_clean_chain = True
+        self.num_nodes = 3
+
+    def setup_network(self):
+        self.setup_nodes()
+
+    def run_test(self):
+        self.log.info("Make sure we repopulate setBlockIndexCandidates after InvalidateBlock:")
+        self.log.info("Mine 4 blocks on Node 0")
+        self.generate(self.nodes[0], 4, sync_fun=self.no_op)
+        assert_equal(self.nodes[0].getblockcount(), 4)
+        besthash_n0 = self.nodes[0].getbestblockhash()
+
+        self.log.info("Mine competing 6 blocks on Node 1")
+        self.generate(self.nodes[1], 6, sync_fun=self.no_op)
+        assert_equal(self.nodes[1].getblockcount(), 6)
+
+        self.log.info("Connect nodes to force a reorg")
+        self.connect_nodes(0, 1)
+        self.sync_blocks(self.nodes[0:2])
+        assert_equal(self.nodes[0].getblockcount(), 6)
+        badhash = self.nodes[1].getblockhash(2)
+
+        self.log.info("Invalidate block 2 on node 0 and verify we reorg to node 0's original chain")
+        self.nodes[0].invalidateblock(badhash)
+        assert_equal(self.nodes[0].getblockcount(), 4)
+        assert_equal(self.nodes[0].getbestblockhash(), besthash_n0)
+
+        self.log.info("Make sure we won't reorg to a lower work chain:")
+        self.connect_nodes(1, 2)
+        self.log.info("Sync node 2 to node 1 so both have 6 blocks")
+        self.sync_blocks(self.nodes[1:3])
+        assert_equal(self.nodes[2].getblockcount(), 6)
+        self.log.info("Invalidate block 5 on node 1 so its tip is now at 4")
+        self.nodes[1].invalidateblock(self.nodes[1].getblockhash(5))
+        assert_equal(self.nodes[1].getblockcount(), 4)
+        self.log.info("Invalidate block 3 on node 2, so its tip is now 2")
+        self.nodes[2].invalidateblock(self.nodes[2].getblockhash(3))
+        assert_equal(self.nodes[2].getblockcount(), 2)
+        self.log.info("..and then mine a block")
+        self.generate(self.nodes[2], 1, sync_fun=self.no_op)
+        self.log.info("Verify all nodes are at the right height")
+        self.wait_until(lambda: self.nodes[2].getblockcount() == 3, timeout=5)
+        self.wait_until(lambda: self.nodes[0].getblockcount() == 4, timeout=5)
+        self.wait_until(lambda: self.nodes[1].getblockcount() == 4, timeout=5)
+
+        self.log.info("Verify that we reconsider all ancestors as well")
+        blocks = self.generatetodescriptor(self.nodes[1], 10, ADDRESS_BCRT1_UNSPENDABLE_DESCRIPTOR, sync_fun=self.no_op)
+        assert_equal(self.nodes[1].getbestblockhash(), blocks[-1])
+        # Invalidate the two blocks at the tip
+        self.nodes[1].invalidateblock(blocks[-1])
+        self.nodes[1].invalidateblock(blocks[-2])
+        assert_equal(self.nodes[1].getbestblockhash(), blocks[-3])
+        # Reconsider only the previous tip
+        self.nodes[1].reconsiderblock(blocks[-1])
+        # Should be back at the tip by now
+        assert_equal(self.nodes[1].getbestblockhash(), blocks[-1])
+
+        self.log.info("Verify that we reconsider all descendants")
+        blocks = self.generatetodescriptor(self.nodes[1], 10, ADDRESS_BCRT1_UNSPENDABLE_DESCRIPTOR, sync_fun=self.no_op)
+        assert_equal(self.nodes[1].getbestblockhash(), blocks[-1])
+        # Invalidate the two blocks at the tip
+        self.nodes[1].invalidateblock(blocks[-2])
+        self.nodes[1].invalidateblock(blocks[-4])
+        assert_equal(self.nodes[1].getbestblockhash(), blocks[-5])
+        # Reconsider only the previous tip
+        self.nodes[1].reconsiderblock(blocks[-4])
+        # Should be back at the tip by now
+        assert_equal(self.nodes[1].getbestblockhash(), blocks[-1])
+
+
+if __name__ == '__main__':
+    InvalidateTest().main()