Initial rebrand: @polkadot -> @pezkuwi (3 packages)

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

Packages:
- @pezkuwi/dev (build tools, linting, CI scripts)
- @pezkuwi/dev-test (test runner)
- @pezkuwi/dev-ts (TypeScript build)

Upstream: polkadot-js/dev v0.83.3

packages/dev-test/src/util.ts

@@ -0,0 +1,57 @@
+// Copyright 2017-2025 @polkadot/dev-test authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { BaseFn, BaseObj, StubFn } from './types.js';
+
+/**
+ * Extends an existing object with the additional function if they
+ * are not already existing.
+ */
+export function enhanceObj <T extends BaseObj | BaseFn, X> (obj: T, extra: X) {
+  Object
+    .entries(extra as Record<string, unknown>)
+    .forEach(([key, value]) => {
+      (obj as Record<string, unknown>)[key] ??= value;
+    });
+
+  return obj as T & Omit<X, keyof T>;
+}
+
+/**
+ * @internal
+ *
+ * A helper to create a stub object based wite the stub creator supplied
+ */
+function createStub <N extends readonly string[]> (keys: N, creator: (key: string) => StubFn) {
+  return keys.reduce<Record<string, StubFn>>((obj, key) => {
+    obj[key] ??= creator(key);
+
+    return obj;
+  }, {}) as unknown as { [K in N[number]]: StubFn };
+}
+
+/**
+ * Extends a given object with the named functions if they do not
+ * already exist on the object.
+ *
+ * @type {StubObjFn}
+ */
+export function stubObj <N extends readonly string[]> (objName: string, keys: N, alts?: Record<string, string>) {
+  return createStub(keys, (key) => () => {
+    const alt = alts?.[key];
+
+    throw new Error(`${objName}.${key} has not been implemented${alt ? ` (Use ${alt} instead)` : ''}`);
+  });
+}
+
+/**
+ * Extends a given object with the named functions if they do not
+ * already exist on the object.
+ *
+ * @type {StubObjFn}
+ */
+export function warnObj <N extends readonly string[]> (objName: string, keys: N) {
+  return createStub(keys, (key) => () => {
+    console.warn(`${objName}.${key} has been implemented as a noop`);
+  });
+}