add simple unittest for fundrawtransaction (increase test coverage)

Author: jonasschnelli

Diff for: src/test/rpc_wallet_tests.cpp

@@ -177,6 +177,12 @@ BOOST_AUTO_TEST_CASE(rpc_wallet)
     Array arr = retValue.get_array();
     BOOST_CHECK(arr.size() > 0);
     BOOST_CHECK(CBitcoinAddress(arr[0].get_str()).Get() == demoAddress.Get());
+    
+    /*********************************
+     * 	     fundrawtransaction
+     *********************************/
+    BOOST_CHECK_THROW(CallRPC("fundrawtransaction 28z"), runtime_error);
+    BOOST_CHECK_THROW(CallRPC("fundrawtransaction 01000000000180969800000000001976a91450ce0a4b0ee0ddeb633da85199728b940ac3fe9488ac00000000"), runtime_error);
 }