From ea221577dff12199ff6562e946da920f5387fc6e Mon Sep 17 00:00:00 2001
From: pythcoiner <pythcoiner@proton.me>
Date: Wed, 15 Jul 2026 01:31:37 -0400
Subject: [PATCH] bip-138 add test vectors for sorting and deduplication

---
 bip-0138/test_vectors/derivation_path.json    | 10 ++++++++++
 bip-0138/test_vectors/individual_secrets.json | 17 +++++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/bip-0138/test_vectors/derivation_path.json b/bip-0138/test_vectors/derivation_path.json
index c7c4093f..10349244 100644
--- a/bip-0138/test_vectors/derivation_path.json
+++ b/bip-0138/test_vectors/derivation_path.json
@@ -59,6 +59,16 @@
     "paths": ["m/0", "m/1"],
     "expected": "0201000000000100000001"
   },
+  {
+    "description": "Unsorted paths are sorted when encoded",
+    "paths": ["m/84'/0'/0'/2'", "m/0/1'/2/3'"],
+    "expected": "0204000000008000000100000002800000030480000054800000008000000080000002"
+  },
+  {
+    "description": "Duplicate paths are deduplicated",
+    "paths": ["m/1", "m/0", "m/1"],
+    "expected": "0201000000000100000001"
+  },
   {
     "description": "BIP-44 account 0: m/44'/0'/0'",
     "paths": ["m/44'/0'/0'"],
diff --git a/bip-0138/test_vectors/individual_secrets.json b/bip-0138/test_vectors/individual_secrets.json
index cfe0ee78..ff4e7b36 100644
--- a/bip-0138/test_vectors/individual_secrets.json
+++ b/bip-0138/test_vectors/individual_secrets.json
@@ -14,6 +14,23 @@
     ],
     "expected": "0201010101010101010101010101010101010101010101010101010101010101010202020202020202020202020202020202020202020202020202020202020202"
   },
+  {
+    "description": "Unsorted secrets are sorted when encoded",
+    "secrets": [
+      "0202020202020202020202020202020202020202020202020202020202020202",
+      "0101010101010101010101010101010101010101010101010101010101010101"
+    ],
+    "expected": "0201010101010101010101010101010101010101010101010101010101010101010202020202020202020202020202020202020202020202020202020202020202"
+  },
+  {
+    "description": "Duplicate secrets are deduplicated",
+    "secrets": [
+      "0202020202020202020202020202020202020202020202020202020202020202",
+      "0101010101010101010101010101010101010101010101010101010101010101",
+      "0202020202020202020202020202020202020202020202020202020202020202"
+    ],
+    "expected": "0201010101010101010101010101010101010101010101010101010101010101010202020202020202020202020202020202020202020202020202020202020202"
+  },
   {
     "description": "Three secrets with different patterns",
     "secrets": [