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-rwxr-xr-xtest/functional/feature_assumeutxo.py35
1 files changed, 31 insertions, 4 deletions
diff --git a/test/functional/feature_assumeutxo.py b/test/functional/feature_assumeutxo.py
index 658eea0a0e..0edd9af680 100755
--- a/test/functional/feature_assumeutxo.py
+++ b/test/functional/feature_assumeutxo.py
@@ -21,7 +21,6 @@ Interesting test cases could be loading an assumeutxo snapshot file with:
Interesting starting states could be loading a snapshot when the current chain tip is:
- TODO: An ancestor of snapshot block
-- TODO: Not an ancestor of the snapshot block but has less work
- TODO: The snapshot block
- TODO: A descendant of the snapshot block
- TODO: Not an ancestor or a descendant of the snapshot block and has more work
@@ -51,18 +50,19 @@ class AssumeutxoTest(BitcoinTestFramework):
def set_test_params(self):
"""Use the pregenerated, deterministic chain up to height 199."""
- self.num_nodes = 3
+ self.num_nodes = 4
self.rpc_timeout = 120
self.extra_args = [
[],
["-fastprune", "-prune=1", "-blockfilterindex=1", "-coinstatsindex=1"],
["-persistmempool=0","-txindex=1", "-blockfilterindex=1", "-coinstatsindex=1"],
+ []
]
def setup_network(self):
"""Start with the nodes disconnected so that one can generate a snapshot
including blocks the other hasn't yet seen."""
- self.add_nodes(3)
+ self.add_nodes(4)
self.start_nodes(extra_args=self.extra_args)
def test_invalid_snapshot_scenarios(self, valid_snapshot_path):
@@ -204,6 +204,29 @@ class AssumeutxoTest(BitcoinTestFramework):
assert_raises_rpc_error(-32603, "Unable to load UTXO snapshot", node.loadtxoutset, dump_output_path)
self.restart_node(0, extra_args=self.extra_args[0])
+ def test_snapshot_in_a_divergent_chain(self, dump_output_path):
+ n0 = self.nodes[0]
+ n3 = self.nodes[3]
+ assert_equal(n0.getblockcount(), FINAL_HEIGHT)
+ assert_equal(n3.getblockcount(), START_HEIGHT)
+
+ self.log.info("Check importing a snapshot where current chain-tip is not an ancestor of the snapshot block but has less work")
+ # Generate a divergent chain in n3 up to 298
+ self.generate(n3, nblocks=99, sync_fun=self.no_op)
+ assert_equal(n3.getblockcount(), SNAPSHOT_BASE_HEIGHT - 1)
+
+ # Try importing the snapshot and assert its success
+ loaded = n3.loadtxoutset(dump_output_path)
+ assert_equal(loaded['base_height'], SNAPSHOT_BASE_HEIGHT)
+ normal, snapshot = n3.getchainstates()["chainstates"]
+ assert_equal(normal['blocks'], START_HEIGHT + 99)
+ assert_equal(snapshot['blocks'], SNAPSHOT_BASE_HEIGHT)
+
+ # Now lets sync the nodes and wait for the background validation to finish
+ self.connect_nodes(0, 3)
+ self.sync_blocks(nodes=(n0, n3))
+ self.wait_until(lambda: len(n3.getchainstates()['chainstates']) == 1)
+
def run_test(self):
"""
Bring up two (disconnected) nodes, mine some new blocks on the first,
@@ -215,6 +238,7 @@ class AssumeutxoTest(BitcoinTestFramework):
n0 = self.nodes[0]
n1 = self.nodes[1]
n2 = self.nodes[2]
+ n3 = self.nodes[3]
self.mini_wallet = MiniWallet(n0)
@@ -265,6 +289,7 @@ class AssumeutxoTest(BitcoinTestFramework):
# block.
n1.submitheader(block)
n2.submitheader(block)
+ n3.submitheader(block)
# Ensure everyone is seeing the same headers.
for n in self.nodes:
@@ -455,7 +480,7 @@ class AssumeutxoTest(BitcoinTestFramework):
self.connect_nodes(0, 2)
self.wait_until(lambda: n2.getchainstates()['chainstates'][-1]['blocks'] == FINAL_HEIGHT)
- self.sync_blocks()
+ self.sync_blocks(nodes=(n0, n2))
self.log.info("Ensuring background validation completes")
self.wait_until(lambda: len(n2.getchainstates()['chainstates']) == 1)
@@ -492,6 +517,8 @@ class AssumeutxoTest(BitcoinTestFramework):
self.connect_nodes(0, 2)
self.wait_until(lambda: n2.getblockcount() == FINAL_HEIGHT)
+ self.test_snapshot_in_a_divergent_chain(dump_output['path'])
+
@dataclass
class Block:
hash: str