Added feature_keva.py functional test case.

src/rpc/rpckeva_nonwallet.cpp

@@ -77,7 +77,10 @@ UniValue keva_get(const JSONRPCRequest& request)
     }
   }
 
-  return ValtypeToString(value);
+  UniValue obj(UniValue::VOBJ);
+  obj.pushKV("key", keyStr);
+  obj.pushKV("value", ValtypeToString(value));
+  return obj;
 }
 
 /**

src/wallet/rpckeva.cpp

@@ -100,13 +100,10 @@ UniValue keva_namespace(const JSONRPCRequest& request)
   LogPrintf("keva_namespace: namespace=%s, displayName=%s, tx=%s\n",
              kevaNamespaceBase58.c_str(), displayNameStr.c_str(), txid.c_str());
 
-  UniValue res(UniValue::VARR);
   UniValue obj(UniValue::VOBJ);
   obj.pushKV("txid", txid);
   obj.pushKV("namespaceId", kevaNamespaceBase58);
-  res.push_back(obj);
+  return obj;
-
-  return res;
 }
 
 UniValue keva_list_namespaces(const JSONRPCRequest& request)
@@ -282,7 +279,9 @@ UniValue keva_put(const JSONRPCRequest& request)
                      KEVA_LOCKED_AMOUNT, false, wtx, coinControl);
 
   keyName.KeepKey();
-  return wtx.GetHash().GetHex();
+  UniValue obj(UniValue::VOBJ);
+  obj.pushKV("txid", wtx.GetHash().GetHex());
+  return obj;
 }
 
 UniValue keva_delete(const JSONRPCRequest& request)
@@ -379,7 +378,9 @@ UniValue keva_delete(const JSONRPCRequest& request)
     keyName.KeepKey();
   }
 
-  return wtx.GetHash().GetHex();
+  UniValue obj(UniValue::VOBJ);
+  obj.pushKV("txid", wtx.GetHash().GetHex());
+  return obj;
 }
 
 UniValue keva_pending(const JSONRPCRequest& request)

test/functional/feature_keva.py

@@ -0,0 +1,96 @@
+#!/usr/bin/env python3
+# Copyright (c) 2016-2017 The Bitcoin Core developers
+# Copyright (c) 2018-2019 The Kevacoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test the Key-Value Store."""
+
+from test_framework.blocktools import witness_script, send_to_witness
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import *
+from test_framework.authproxy import JSONRPCException
+from io import BytesIO
+import re
+
+
+class KevaTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.setup_clean_chain = True
+        self.num_nodes = 3
+
+    def setup_network(self):
+        super().setup_network()
+        connect_nodes(self.nodes[0], 2)
+        self.sync_all()
+
+    def run_test(self):
+        self.nodes[0].generate(161) #block 161
+        response = self.nodes[0].keva_namespace('first_namespace')
+        namespaceId = response['namespaceId']
+
+        self.log.info("Test basic put and get operations")
+        key = 'First Key'
+        value = 'This is the first value!'
+        self.nodes[0].keva_put(namespaceId, key, value)
+        response = self.nodes[0].keva_pending()
+        assert(response[0]['op'] == 'keva_namespace')
+        assert(response[1]['op'] == 'keva_put')
+        response = self.nodes[0].keva_get(namespaceId, key)
+        assert(response['value'] == value)
+
+        self.nodes[0].generate(1)
+        response = self.nodes[0].keva_pending()
+        assert(len(response) == 0)
+
+        self.log.info("Test batch of put operations without exceeding the mempool chain limit")
+        prefix = 'first-set-of-keys-'
+        for i in range(24):
+            key = prefix + str(i)
+            value = ('value-' + str(i) + '-') * 300
+            self.nodes[0].keva_put(namespaceId, key, value)
+
+        response = self.nodes[0].keva_pending()
+        assert(len(response) == 24)
+
+        self.nodes[0].generate(1)
+        response = self.nodes[0].keva_pending()
+        assert(len(response) == 0)
+
+        # This will throw "too-long-mempool-chain" exception
+        self.log.info("Test batch of put operations that exceeds the mempool chain limit")
+        throwException = False
+        secondPrefix = 'second-set-of-keys-'
+        try:
+            for i in range(30):
+                key = secondPrefix + '|' + str(i)
+                value = '-value-' * 320 + '|' + str(i)
+                self.nodes[0].keva_put(namespaceId, key, value)
+        except JSONRPCException:
+            throwException = True
+
+        assert(throwException)
+
+        self.nodes[0].generate(1)
+        response = self.nodes[0].keva_pending()
+        assert(len(response) == 0)
+
+        self.log.info("Verify keva_filter works properly")
+        response = self.nodes[0].keva_filter(namespaceId, secondPrefix)
+        assert(len(response) == 25)
+
+        for i in range(25):
+            m = re.search('\|(\d+)', response[i]['key'])
+            keyId = m.group(0)
+            m = re.search('\|(\d+)', response[i]['value'])
+            valueId = m.group(0)
+            assert(keyId == valueId)
+
+        self.log.info("Test keva_delete")
+        keyToDelete = secondPrefix + '|13'
+        self.nodes[0].keva_delete(namespaceId, keyToDelete)
+        self.nodes[0].generate(1)
+        response = self.nodes[0].keva_get(namespaceId, keyToDelete)
+        assert(response['value'] == '')
+
+if __name__ == '__main__':
+    KevaTest().main()

test/functional/test_runner.py

@@ -80,6 +80,8 @@ BASE_SCRIPTS= [
     'rpc_rawtransaction.py',
     'wallet_address_types.py',
     'feature_reindex.py',
+    # vv Tests Key-Value store vv
+    'feature_keva.py',
     # vv Tests less than 30s vv
     'wallet_keypool_topup.py',
     'interface_zmq.py',