[tests] Tidy up receivedby.py

- Fix flake8 warnings
- Remove the useless get_sub_array_from_array() function
- Reduce runtime for receivedby.py by about half by only using two nodes

test/functional/receivedby.py

@@ -3,34 +3,21 @@
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the listreceivedbyaddress RPC."""
+from decimal import Decimal
 
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import *
-
-def get_sub_array_from_array(object_array, to_match):
-    '''
-        Finds and returns a sub array from an array of arrays.
-        to_match should be a unique idetifier of a sub array
-    '''
-    for item in object_array:
-        all_match = True
-        for key,value in to_match.items():
-            if item[key] != value:
-                all_match = False
-        if not all_match:
-            continue
-        return item
-    return []
+from test_framework.util import assert_array_result, assert_equal
 
 class ReceivedByTest(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 2
-        self.enable_mocktime()
 
     def run_test(self):
-        '''
-        listreceivedbyaddress Test
-        '''
+        # Generate block to get out of IBD
+        self.nodes[0].generate(1)
+
+        self.log.info("listreceivedbyaddress Test")
+
         # Send from node 0 to 1
         addr = self.nodes[1].getnewaddress()
         txid = self.nodes[0].sendtoaddress(addr, 0.1)
@@ -60,9 +47,8 @@ class ReceivedByTest(BitcoinTestFramework):
                             {"address": addr},
                             {"address": addr, "account": "", "amount": 0, "confirmations": 0, "txids": []})
 
-        '''
-            getreceivedbyaddress Test
-        '''
+        self.log.info("getreceivedbyaddress Test")
+
         # Send from node 0 to 1
         addr = self.nodes[1].getnewaddress()
         txid = self.nodes[0].sendtoaddress(addr, 0.1)
@@ -70,30 +56,24 @@ class ReceivedByTest(BitcoinTestFramework):
 
         # Check balance is 0 because of 0 confirmations
         balance = self.nodes[1].getreceivedbyaddress(addr)
-        if balance != Decimal("0.0"):
-            raise AssertionError("Wrong balance returned by getreceivedbyaddress, %0.2f"%(balance))
+        assert_equal(balance, Decimal("0.0"))
 
         # Check balance is 0.1
         balance = self.nodes[1].getreceivedbyaddress(addr, 0)
-        if balance != Decimal("0.1"):
-            raise AssertionError("Wrong balance returned by getreceivedbyaddress, %0.2f"%(balance))
+        assert_equal(balance, Decimal("0.1"))
 
         # Bury Tx under 10 block so it will be returned by the default getreceivedbyaddress
         self.nodes[1].generate(10)
         self.sync_all()
         balance = self.nodes[1].getreceivedbyaddress(addr)
-        if balance != Decimal("0.1"):
-            raise AssertionError("Wrong balance returned by getreceivedbyaddress, %0.2f"%(balance))
+        assert_equal(balance, Decimal("0.1"))
+
+        self.log.info("listreceivedbyaccount + getreceivedbyaccount Test")
 
-        '''
-            listreceivedbyaccount + getreceivedbyaccount Test
-        '''
         # set pre-state
         addrArr = self.nodes[1].getnewaddress()
         account = self.nodes[1].getaccount(addrArr)
-        received_by_account_json = get_sub_array_from_array(self.nodes[1].listreceivedbyaccount(),{"account":account})
-        if len(received_by_account_json) == 0:
-            raise AssertionError("No accounts found in node")
+        received_by_account_json = [r for r in self.nodes[1].listreceivedbyaccount() if r["account"] == account][0]
         balance_by_account = self.nodes[1].getreceivedbyaccount(account)
 
         txid = self.nodes[0].sendtoaddress(addr, 0.1)
@@ -106,8 +86,7 @@ class ReceivedByTest(BitcoinTestFramework):
 
         # getreceivedbyaddress should return same balance because of 0 confirmations
         balance = self.nodes[1].getreceivedbyaccount(account)
-        if balance != balance_by_account:
-            raise AssertionError("Wrong balance returned by getreceivedbyaccount, %0.2f"%(balance))
+        assert_equal(balance, balance_by_account)
 
         self.nodes[1].generate(10)
         self.sync_all()
@@ -118,23 +97,18 @@ class ReceivedByTest(BitcoinTestFramework):
 
         # getreceivedbyaddress should return updates balance
         balance = self.nodes[1].getreceivedbyaccount(account)
-        if balance != balance_by_account + Decimal("0.1"):
-            raise AssertionError("Wrong balance returned by getreceivedbyaccount, %0.2f"%(balance))
+        assert_equal(balance, balance_by_account + Decimal("0.1"))
 
         # Create a new account named "mynewaccount" that has a 0 balance
         self.nodes[1].getaccountaddress("mynewaccount")
-        received_by_account_json = get_sub_array_from_array(self.nodes[1].listreceivedbyaccount(0,True),{"account":"mynewaccount"})
-        if len(received_by_account_json) == 0:
-            raise AssertionError("No accounts found in node")
+        received_by_account_json = [r for r in self.nodes[1].listreceivedbyaccount(0, True) if r["account"] == "mynewaccount"][0]
 
         # Test includeempty of listreceivedbyaccount
-        if received_by_account_json["amount"] != Decimal("0.0"):
-            raise AssertionError("Wrong balance returned by listreceivedbyaccount, %0.2f"%(received_by_account_json["amount"]))
+        assert_equal(received_by_account_json["amount"], Decimal("0.0"))
 
         # Test getreceivedbyaccount for 0 amount accounts
         balance = self.nodes[1].getreceivedbyaccount("mynewaccount")
-        if balance != Decimal("0.0"):
-            raise AssertionError("Wrong balance returned by getreceivedbyaccount, %0.2f"%(balance))
+        assert_equal(balance, Decimal("0.0"))
 
 if __name__ == '__main__':
     ReceivedByTest().main()