Create new isControlledAddress helper

packages/wasm/src/address.test.ts

@@ -1,6 +1,6 @@
 import { describe, expect, it } from 'vitest';
 import { generateSpendKey, getAddressByIndex, getFullViewingKey } from './keys';
-import { getAddressIndexByAddress } from './address';
+import { getAddressIndexByAddress, isControlledAddress } from './address';
 import { bech32ToAddress } from '@penumbra-zone/bech32/src/address';
 import { Address } from '@buf/penumbra-zone_penumbra.bufbuild_es/penumbra/core/keys/v1/keys_pb';
 
@@ -29,4 +29,26 @@ describe('address', () => {
       expect(getAddressIndexByAddress(fullViewingKey, address)).toBeUndefined();
     });
   });
+
+  describe('isControlledAddress()', () => {
+    it('returns true if the address is controlled', () => {
+      const spendKey = generateSpendKey(seedPhrase);
+      const fullViewingKey = getFullViewingKey(spendKey);
+      const address = getAddressByIndex(fullViewingKey, 1);
+
+      expect(isControlledAddress(fullViewingKey, address)).toBe(true);
+    });
+
+    it('returns false if the address is not controlled', () => {
+      const spendKey = generateSpendKey(seedPhrase);
+      const fullViewingKey = getFullViewingKey(spendKey);
+      const address = new Address({
+        inner: bech32ToAddress(
+          'penumbra1ftmn2a3hf8pxe0e48es8u9rqhny4xggq9wn2caxcjnfwfhwr5s0t3y6nzs9gx3ty5czd0sd9ssfgjt2pcxrq93yvgk2gu3ynmayuwgddkxthce8l445v8x6v07y2sjd8djcr6v',
+        ),
+      });
+
+      expect(isControlledAddress(fullViewingKey, address)).toBe(false);
+    });
+  });
 });

packages/wasm/src/address.ts

@@ -16,3 +16,6 @@ export const getAddressIndexByAddress = (
   const res = is_controlled_address(fullViewingKey, bech32Address(address)) as JsonValue;
   return res ? AddressIndex.fromJson(res) : undefined;
 };
+
+export const isControlledAddress = (fullViewingKey: string, address: Address): boolean =>
+  Boolean(is_controlled_address(fullViewingKey, bech32Address(address)));