From f4e3820504664457cd03a90790b2876b244373b6 Mon Sep 17 00:00:00 2001
From: Charly Chevalier <charlyy.chevalier@gmail.com>
Date: Wed, 9 Oct 2024 14:30:20 +0200
Subject: [PATCH] feat: add `KnownCaipNamespace.Bip122` for Bitcoin family
 (#213)

Adding a new known CAIP namespace for Bitcoin.

You can find a proper BIP-122 CAIP 2 identifier here:
-
https://github.com/ChainAgnostic/CAIPs/blob/main/CAIPs/caip-2.md#test-cases

We could also update the for `KnownCaipNamespaces` to match those test
cases but the test as-is seems good enough AND future-proof too.
---
 src/caip-types.test.ts | 5 +----
 src/caip-types.ts      | 2 ++
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/caip-types.test.ts b/src/caip-types.test.ts
index d610f0e88..16d4958ec 100644
--- a/src/caip-types.test.ts
+++ b/src/caip-types.test.ts
@@ -295,10 +295,7 @@ describe('toCaipChainId', () => {
   it.each(Object.values(KnownCaipNamespace))(
     'treats %s as a valid namespace',
     (namespace) => {
-      const reference = '1';
-      expect(toCaipChainId(namespace, reference)).toBe(
-        `${namespace}:${reference}`,
-      );
+      expect(isCaipNamespace(namespace)).toBe(true);
     },
   );
 
diff --git a/src/caip-types.ts b/src/caip-types.ts
index 361aa60d6..037179ace 100644
--- a/src/caip-types.ts
+++ b/src/caip-types.ts
@@ -54,6 +54,8 @@ export type CaipAccountAddress = Infer<typeof CaipAccountAddressStruct>;
 
 /** Known CAIP namespaces. */
 export enum KnownCaipNamespace {
+  /** BIP-122 (Bitcoin) compatible chains. */
+  Bip122 = 'bip122',
   /** EIP-155 compatible chains. */
   Eip155 = 'eip155',
   Wallet = 'wallet',