Add getmininginfo functional test

Github-Pull: #11150
Rebased-From: 4f2905b76b

test/functional/mining.py

@@ -4,16 +4,18 @@
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test mining RPCs
 
+- getmininginfo
 - getblocktemplate proposal mode
 - submitblock"""
 
-from binascii import b2a_hex
 import copy
+from binascii import b2a_hex
+from decimal import Decimal
 
 from test_framework.blocktools import create_coinbase
-from test_framework.test_framework import BitcoinTestFramework
 from test_framework.mininode import CBlock
-from test_framework.util import *
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import assert_equal, assert_raises_jsonrpc
 
 def b2x(b):
     return b2a_hex(b).decode('ascii')
@@ -33,6 +35,18 @@ class MiningTest(BitcoinTestFramework):
 
     def run_test(self):
         node = self.nodes[0]
+
+        self.log.info('getmininginfo')
+        mining_info = node.getmininginfo()
+        assert_equal(mining_info['blocks'], 200)
+        assert_equal(mining_info['chain'], 'regtest')
+        assert_equal(mining_info['currentblocksize'], 0)
+        assert_equal(mining_info['currentblocktx'], 0)
+        assert_equal(mining_info['currentblockweight'], 0)
+        assert_equal(mining_info['difficulty'], Decimal('4.656542373906925E-10'))
+        assert_equal(mining_info['networkhashps'], Decimal('0.003333333333333334'))
+        assert_equal(mining_info['pooledtx'], 0)
+
         # Mine a block to leave initial block download
         node.generate(1)
         tmpl = node.getblocktemplate()