expicit set UniValue type to avoid empty values

src/test/rpc_tests.cpp

@@ -19,9 +19,9 @@ using namespace json_spirit;
 Array
 createArgs(int nRequired, const char* address1=NULL, const char* address2=NULL)
 {
-    Array result;
+    UniValue result(UniValue::VARR);
     result.push_back(nRequired);
-    Array addresses;
+    UniValue addresses(UniValue::VARR);
     if (address1) addresses.push_back(address1);
     if (address2) addresses.push_back(address2);
     result.push_back(addresses);

src/test/script_tests.cpp

@@ -296,7 +296,7 @@ public:
     Array GetJSON()
     {
         DoPush();
-        Array array;
+        UniValue array(UniValue::VARR);
         array.push_back(FormatScript(spendTx.vin[0].scriptSig));
         array.push_back(FormatScript(creditTx.vout[0].scriptPubKey));
         array.push_back(FormatScriptFlags(flags));