From 598625c2aa765e37a7aaa91295abce7bf5a42ed6 Mon Sep 17 00:00:00 2001
From: jonny rhea <jonathan.rhea@gmail.com>
Date: Mon, 3 Nov 2025 20:31:25 -0600
Subject: [PATCH] core/vm: add missing immediate operand tests

---
 core/vm/instructions_test.go | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/core/vm/instructions_test.go b/core/vm/instructions_test.go
index 65792a39f5..e6a3405f6a 100644
--- a/core/vm/instructions_test.go
+++ b/core/vm/instructions_test.go
@@ -1094,6 +1094,21 @@ func TestEIP8024_Execution(t *testing.T) {
 			codeHex: "600060016002e801", // (n,m=2,3 need at least 4 items have 3)
 			wantErr: true,
 		},
+		{
+			name:    "MISSING_IMMEDIATE_DUPN",
+			codeHex: "e6", // no operand
+			wantErr: true,
+		},
+		{
+			name:    "MISSING_IMMEDIATE_SWAPN",
+			codeHex: "e7", // no operand
+			wantErr: true,
+		},
+		{
+			name:    "MISSING_IMMEDIATE_EXCHANGE",
+			codeHex: "e8", // no operand
+			wantErr: true,
+		},
 	}
 
 	for _, tc := range tests {