r1

test/functional/rpc_blockchain.py

@@ -0,0 +1,109 @@
+#!/usr/bin/env python3
+# Copyright (c) 2014-2017 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test RPCs related to blockchainstate.
+
+Test the following RPCs:
+    - getblockchaininfo
+    - gettxoutsetinfo
+    - getdifficulty
+    - getbestblockhash
+    - getblockhash
+    - getblockheader
+    - getchaintxstats
+    - getnetworkhashps
+    - verifychain
+
+Tests correspond to code in rpc/blockchain.cpp.
+"""
+
+from decimal import Decimal
+import http.client
+import subprocess
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import (
+    assert_equal,
+    assert_greater_than,
+    assert_greater_than_or_equal,
+    assert_raises,
+    assert_raises_rpc_error,
+    assert_is_hex_string,
+    assert_is_hash_string,
+)
+
+class BlockchainTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.num_nodes = 1
+        self.extra_args = [['-stopatheight=207', '-prune=1']]
+
+    def run_test(self):
+        #self._test_getblockchaininfo()
+        self._test_gettxoutsetinfo()
+        self._test_getblockheader()
+        #self._test_getdifficulty()
+        self.nodes[0].verifychain(0)
+
+    def _test_getblockchaininfo(self):
+        self.log.info("Test getblockchaininfo")
+
+        keys = [
+            'bestblockhash',
+            'blocks',
+            'chain',
+            'chainwork',
+            'difficulty',
+            'headers',
+            'verificationprogress',
+            'warnings',
+        ]
+        res = self.nodes[0].getblockchaininfo()
+        # result should have these additional pruning keys if manual pruning is enabled
+        assert_equal(sorted(res.keys()), sorted(keys))
+    def _test_gettxoutsetinfo(self):
+        node = self.nodes[0]
+        res = node.gettxoutsetinfo()
+
+        assert_equal(res['total_amount'], Decimal('50000.00000000'))
+        assert_equal(res['transactions'], 200)
+        assert_equal(res['height'], 200)
+        assert_equal(res['txouts'], 200)
+        assert_equal(res['bytes_serialized'], 14073),
+        assert_equal(len(res['bestblock']), 64)
+        assert_equal(len(res['hash_serialized']), 64)
+
+    def _test_getblockheader(self):
+        node = self.nodes[0]
+
+        assert_raises_rpc_error(-5, "Block not found",
+                              node.getblockheader, "nonsense")
+
+        besthash = node.getbestblockhash()
+        secondbesthash = node.getblockhash(199)
+        header = node.getblockheader(besthash)
+
+        assert_equal(header['hash'], besthash)
+        assert_equal(header['height'], 200)
+        assert_equal(header['confirmations'], 1)
+        assert_equal(header['previousblockhash'], secondbesthash)
+        assert_is_hex_string(header['chainwork'])
+        assert_is_hash_string(header['hash'])
+        assert_is_hash_string(header['previousblockhash'])
+        assert_is_hash_string(header['merkleroot'])
+        assert_is_hash_string(header['bits'], length=None)
+        assert isinstance(header['time'], int)
+        #assert isinstance(header['mediantime'], int)
+        assert isinstance(header['nonce'], int)
+        assert isinstance(header['version'], int)
+        #assert isinstance(int(header['versionHex'], 16), int)
+        assert isinstance(header['difficulty'], Decimal)
+
+    def _test_getdifficulty(self):
+        difficulty = self.nodes[0].getdifficulty()
+        # 1 hash in 2 should be valid, so difficulty should be 1/2**31
+        # binary => decimal => binary math is why we do this check
+        assert abs(difficulty * 2**31 - 1) < 0.0001
+
+if __name__ == '__main__':
+    BlockchainTest().main()