Initial Vexta Core v0.1.0 release

test/functional/rpc_dumptxoutset.py

@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+# Copyright (c) 2019-2021 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 generation of UTXO snapshots using `dumptxoutset`.
+"""
+
+from test_framework.blocktools import (
+    COINBASE_MATURITY,
+    COINBASE_MATURITY_2,
+)
+from test_framework.test_framework import DigiByteTestFramework
+from test_framework.util import assert_equal, assert_raises_rpc_error
+
+import hashlib
+from pathlib import Path
+
+
+class DumptxoutsetTest(DigiByteTestFramework):
+    def set_test_params(self):
+        self.setup_clean_chain = True
+        self.num_nodes = 1
+
+    def run_test(self):
+        """Test a trivial usage of the dumptxoutset RPC command."""
+        node = self.nodes[0]
+        mocktime = node.getblockheader(node.getblockhash(0))['time'] + 1
+        node.setmocktime(mocktime)
+        self.generate(node, COINBASE_MATURITY_2)
+
+        FILENAME = 'txoutset.dat'
+        out = node.dumptxoutset(FILENAME)
+        expected_path = Path(node.datadir) / self.chain / FILENAME
+
+        assert expected_path.is_file()
+
+        assert_equal(out['coins_written'], 100)
+        assert_equal(out['base_height'], 100)
+        assert_equal(out['path'], str(expected_path))
+        # Blockhash should be deterministic based on mocked time.
+        assert_equal(
+            out['base_hash'],
+            '4d9497f470fcf05bdcc7f3402d5cc3070a33fa8f3effb117074ad07bb09e7f72')
+
+        with open(str(expected_path), 'rb') as f:
+            digest = hashlib.sha256(f.read()).hexdigest()
+            # UTXO snapshot hash should be deterministic based on mocked time.
+            assert_equal(
+                digest, 'f202ed83b2e0b29019d7090d29ec90d89014923f80f433af0a1b82ec0577c43c')
+
+        # Specifying a path to an existing file will fail.
+        assert_raises_rpc_error(
+            -8, '{} already exists'.format(FILENAME),  node.dumptxoutset, FILENAME)
+
+if __name__ == '__main__':
+    DumptxoutsetTest().main()