test: add tests to instantiate2 address prediction

Author: dalechyn

package.json

@@ -9,6 +9,7 @@
     "changeset:release": "turbo build && changeset publish",
     "changeset:version": "changeset version && pnpm install --lockfile-only",
     "cjs:release": "node -r esbuild-register ./scripts/cjs.ts",
+    "test": "vitest",
     "format": "biome format . --write",
     "lint": "biome check .",
     "lint:fix": "pnpm lint --apply",
@@ -48,5 +49,9 @@
   "simple-git-hooks": {
     "pre-commit": "pnpm format && pnpm lint:fix && git add -u"
   },
-  "packageManager": "[email protected]"
+  "packageManager": "[email protected]",
+  "dependencies": {
+    "happy-dom": "^13.3.8",
+    "vitest": "^1.2.2"
+  }
 }

packages/core/package.json

@@ -93,11 +93,6 @@
     },
     "./package.json": "./package.json"
   },
-  "files": [
-    "/clients",
-    "/utils",
-    "/legacy",
-    "/dist"
-  ],
+  "files": ["/clients", "/utils", "/legacy", "/dist"],
   "sideEffects": false
 }

packages/core/src/utils/account-factory/get-instantiate2-account-address.test.ts

@@ -0,0 +1,27 @@
+import { describe, expect, it } from 'vitest'
+import { stringToAccountId } from '../account-id'
+import { getInstantiate2AccountAddress } from './get-instantiate2-account-address' // Update the path to your logic file
+
+describe('getInstantiate2AccountAddress', () => {
+  it('returns the correct address', async () => {
+    const address = 'juno1jzyqffltm2s5wxmnjyze5hzrpcady0gmltw6ka'
+    const accountFactoryAddress =
+      'juno1qtl43hzk7xd9xly9wc4qxnmtjmj0hdtymsnldsl736yh7vnfm3ys7t4a4y'
+    const checksum = new Uint8Array([
+      1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8, 1,
+      2, 3, 4, 5, 6, 7, 8,
+    ])
+    const accountId = stringToAccountId('juno-5', 'juno')
+
+    const result = await getInstantiate2AccountAddress(
+      address,
+      accountFactoryAddress,
+      checksum,
+      accountId,
+    )
+
+    expect(result).toBe(
+      'juno1m8lz9cru30zugeas5tx9245kn6w4rv92y7t96gvcsl0ktve378tqkv60qs',
+    )
+  })
+})

packages/core/src/utils/account-factory/get-instantiate2-account-address.ts

@@ -3,11 +3,15 @@ import { bech32 } from 'bech32'
 import { AccountId, accountIdToString } from '../account-id'
 
 async function getSalt(accountId: AccountId) {
+  const encoder = new TextEncoder()
   const hash = await crypto.subtle.digest(
-    'sha256',
-    new TextEncoder().encode(accountIdToString(accountId)),
+    'SHA-256',
+    encoder.encode(accountIdToString(accountId)),
   )
-  return new Uint8Array(hash)
+  return new Uint8Array([
+    ...new Uint8Array(hash),
+    ...encoder.encode('abstract'),
+  ])
 }
 
 export async function getInstantiate2AccountAddress(