Add hashFinalSaplingRoot to getblocktemplate

qa/rpc-tests/getblocktemplate.py

@@ -4,8 +4,8 @@
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import initialize_chain_clean, start_nodes, \
-    connect_nodes_bi
+from test_framework.util import assert_equal, connect_nodes_bi, \
+    initialize_chain_clean, start_nodes
 
 
 class GetBlockTemplateTest(BitcoinTestFramework):
@@ -49,11 +49,16 @@ class GetBlockTemplateTest(BitcoinTestFramework):
 
         # Test 5: General checks
         tmpl = node.getblocktemplate()
-        assert(len(tmpl['noncerange']) == 16)
+        assert_equal(16, len(tmpl['noncerange']))
 
         # Test 6: coinbasetxn checks
         assert('foundersreward' in tmpl['coinbasetxn'])
         assert(tmpl['coinbasetxn']['required'])
 
+        # Test 7: hashFinalSaplingRoot checks
+        assert('finalsaplingroothash' in tmpl)
+        finalsaplingroothash = '3e49b5f954aa9d3545bc6c37744661eea48d7c34e3000d82b7f0010c30f4c2fb'
+        assert_equal(finalsaplingroothash, tmpl['finalsaplingroothash'])
+
 if __name__ == '__main__':
     GetBlockTemplateTest().main()

src/rpcmining.cpp

@@ -447,9 +447,10 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp)
 
             "\nResult:\n"
             "{\n"
-            "  \"version\" : n,                    (numeric) The block version\n"
+            "  \"version\" : n,                     (numeric) The block version\n"
             "  \"previousblockhash\" : \"xxxx\",    (string) The hash of current highest block\n"
-            "  \"transactions\" : [                (array) contents of non-coinbase transactions that should be included in the next block\n"
+            "  \"finalsaplingroothash\" : \"xxxx\", (string) The hash of the final sapling root\n"
+            "  \"transactions\" : [                 (array) contents of non-coinbase transactions that should be included in the next block\n"
             "      {\n"
             "         \"data\" : \"xxxx\",          (string) transaction data encoded in hexadecimal (byte-for-byte)\n"
             "         \"hash\" : \"xxxx\",          (string) hash/id encoded in little-endian hexadecimal\n"
@@ -706,6 +707,7 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp)
     result.push_back(Pair("capabilities", aCaps));
     result.push_back(Pair("version", pblock->nVersion));
     result.push_back(Pair("previousblockhash", pblock->hashPrevBlock.GetHex()));
+    result.push_back(Pair("finalsaplingroothash", pblock->hashFinalSaplingRoot.GetHex()));
     result.push_back(Pair("transactions", transactions));
     if (coinbasetxn) {
         assert(txCoinbase.isObject());