Initial rebrand: @polkadot -> @pezkuwi (14 packages)

- Package namespace: @polkadot/* -> @pezkuwi/*
- Repository: polkadot-js/common -> pezkuwichain/pezkuwi-common
- Author: Pezkuwi Team <team@pezkuwichain.io>

Core packages:
- @pezkuwi/util (utilities)
- @pezkuwi/util-crypto (crypto primitives)
- @pezkuwi/keyring (account management)
- @pezkuwi/networks (chain metadata)
- @pezkuwi/hw-ledger (Ledger hardware wallet)
- @pezkuwi/x-* (10 polyfill packages)

Total: 14 packages
Upstream: polkadot-js/common v14.0.1

packages/util/src/memoize.spec.ts

@@ -0,0 +1,79 @@
+// Copyright 2017-2025 @polkadot/util authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+/// <reference types="@polkadot/dev-test/globals.d.ts" />
+
+import { memoize } from './index.js';
+
+describe('memoize', (): void => {
+  it('returns actual values', (): void => {
+    const fn = memoize(() => 5);
+
+    expect(fn()).toEqual(5);
+  });
+
+  it('caches executions', (): void => {
+    const spy = jest.fn((a: number, b: number) => a + b);
+    const fn = memoize(spy);
+
+    expect(fn(2, 4)).toEqual(6);
+    expect(fn(2, 4)).toEqual(6);
+
+    expect(spy).toHaveBeenCalledTimes(1);
+
+    expect(fn(4, 2)).toEqual(6);
+
+    expect(spy).toHaveBeenCalledTimes(2);
+  });
+
+  it('does unmemoize', (): void => {
+    const spy = jest.fn((a: number, b: number) => a + b);
+    const fn = memoize(spy);
+
+    expect(fn(2, 4)).toEqual(6);
+    expect(fn(4, 2)).toEqual(6);
+    expect(spy).toHaveBeenCalledTimes(2);
+
+    fn.unmemoize(2, 4);
+
+    expect(fn(2, 4)).toEqual(6);
+    expect(fn(4, 2)).toEqual(6);
+    expect(spy).toHaveBeenCalledTimes(3);
+  });
+
+  it('manages separate instances', (): void => {
+    let instanceId = 'a';
+    const spy = jest.fn((a: number, b: number) => a + b);
+    const fn = memoize(spy, { getInstanceId: () => instanceId });
+
+    expect(fn(1, 3)).toEqual(4);
+
+    instanceId = 'b';
+
+    expect(fn(1, 3)).toEqual(4);
+    expect(spy).toHaveBeenCalledTimes(2);
+
+    instanceId = 'a';
+
+    expect(fn(1, 3)).toEqual(4);
+    expect(spy).toHaveBeenCalledTimes(2);
+
+    instanceId = 'b';
+    fn.unmemoize(1, 3);
+
+    expect(fn(1, 3)).toEqual(4);
+    expect(spy).toHaveBeenCalledTimes(3);
+
+    instanceId = 'a';
+    fn.unmemoize(1, 3);
+
+    expect(fn(1, 3)).toEqual(4);
+    expect(spy).toHaveBeenCalledTimes(4);
+  });
+
+  it('normalizes BigInt values as well', (): void => {
+    const fn = memoize((a: bigint, b: bigint) => a + b);
+
+    expect(fn(1n, 2n).toString()).toEqual('3');
+  });
+});