diff --git a/tests/test_phase4.cpp b/tests/test_phase4.cpp
index e2d663b..e2db731 100644
--- a/tests/test_phase4.cpp
+++ b/tests/test_phase4.cpp
@@ -5573,6 +5573,12 @@ void testConsoleInputModel()
     auto args = dragonx::ui::ParseConsoleCommandArgs("z_sendmany \"from addr\" [{\"address\":\"zs\",\"amount\":1.25}] true");
     EXPECT_EQ(args.size(), static_cast<size_t>(4));
     EXPECT_EQ(args[1], std::string("from addr"));
+    // An explicitly-quoted empty argument must be preserved (not dropped), otherwise
+    // later positional RPC params silently shift by one (F14-1).
+    auto emptyArgs = dragonx::ui::ParseConsoleCommandArgs("walletpassphrase \"\" 60");
+    EXPECT_EQ(emptyArgs.size(), static_cast<size_t>(3));
+    EXPECT_EQ(emptyArgs[1], std::string(""));
+    EXPECT_EQ(emptyArgs[2], std::string("60"));
     auto call = dragonx::ui::BuildConsoleRpcCall("setgenerate true 4");
     EXPECT_TRUE(call.valid);
     EXPECT_EQ(call.method, std::string("setgenerate"));