add CI pipeline with lint, test, build

node_modules/jest-leak-detector/LICENSE

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+MIT License
+
+Copyright (c) Meta Platforms, Inc. and affiliates.
+Copyright Contributors to the Jest project.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

node_modules/jest-leak-detector/README.md

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+# jest-leak-detector
+
+Module for verifying whether an object has been garbage collected or not.
+
+Internally creates a weak reference to the object, and forces garbage collection to happen. If the reference is gone, it meant no one else was pointing to the object.
+
+## Example
+
+```javascript
+(async function () {
+  let reference = {};
+  let isLeaking;
+
+  const detector = new LeakDetector(reference, {
+    shouldGenerateV8HeapSnapshot: true,
+  });
+
+  // Reference is held in memory.
+  isLeaking = await detector.isLeaking();
+  console.log(isLeaking); // true
+
+  // We destroy the only reference to the object.
+  reference = null;
+
+  // Reference is gone.
+  isLeaking = await detector.isLeaking();
+  console.log(isLeaking); // false
+})();
+```

node_modules/jest-leak-detector/build/index.d.ts

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+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+declare class LeakDetector {
+  private _isReferenceBeingHeld;
+  private _shouldGenerateV8HeapSnapshot;
+  private readonly _finalizationRegistry?;
+  constructor(value: unknown, opt?: LeakDetectorOptions);
+  isLeaking(): Promise<boolean>;
+  private _runGarbageCollector;
+}
+export default LeakDetector;
+
+declare interface LeakDetectorOptions {
+  shouldGenerateV8HeapSnapshot: boolean;
+}

node_modules/jest-leak-detector/build/index.js

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+/*!
+ * /**
+ *  * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *  *
+ *  * This source code is licensed under the MIT license found in the
+ *  * LICENSE file in the root directory of this source tree.
+ *  * /
+ */
+/******/ (() => { // webpackBootstrap
+/******/ 	"use strict";
+var __webpack_exports__ = {};
+// This entry needs to be wrapped in an IIFE because it uses a non-standard name for the exports (exports).
+(() => {
+var exports = __webpack_exports__;
+
+
+Object.defineProperty(exports, "__esModule", ({
+  value: true
+}));
+exports["default"] = void 0;
+function _nodeUtil() {
+  const data = require("node:util");
+  _nodeUtil = function () {
+    return data;
+  };
+  return data;
+}
+function _nodeV() {
+  const data = require("node:v8");
+  _nodeV = function () {
+    return data;
+  };
+  return data;
+}
+function _nodeVm() {
+  const data = require("node:vm");
+  _nodeVm = function () {
+    return data;
+  };
+  return data;
+}
+function _getType() {
+  const data = require("@jest/get-type");
+  _getType = function () {
+    return data;
+  };
+  return data;
+}
+function _prettyFormat() {
+  const data = require("pretty-format");
+  _prettyFormat = function () {
+    return data;
+  };
+  return data;
+}
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+/// <reference lib="es2021.WeakRef" />
+
+const tick = (0, _nodeUtil().promisify)(setImmediate);
+class LeakDetector {
+  _isReferenceBeingHeld;
+  _shouldGenerateV8HeapSnapshot;
+  _finalizationRegistry;
+  constructor(value, opt) {
+    if ((0, _getType().isPrimitive)(value)) {
+      throw new TypeError(['Primitives cannot leak memory.', `You passed a ${typeof value}: <${(0, _prettyFormat().format)(value)}>`].join(' '));
+    }
+
+    // When `_finalizationRegistry` is GCed the callback we set will no longer be called,
+    this._finalizationRegistry = new FinalizationRegistry(() => {
+      this._isReferenceBeingHeld = false;
+    });
+    this._finalizationRegistry.register(value, undefined);
+    this._isReferenceBeingHeld = true;
+    this._shouldGenerateV8HeapSnapshot = opt?.shouldGenerateV8HeapSnapshot ?? true;
+
+    // Ensure value is not leaked by the closure created by the "weak" callback.
+    value = null;
+  }
+  async isLeaking() {
+    this._runGarbageCollector();
+
+    // wait some ticks to allow GC to run properly, see https://github.com/nodejs/node/issues/34636#issuecomment-669366235
+    for (let i = 0; i < 10; i++) {
+      await tick();
+    }
+    if (this._isReferenceBeingHeld) {
+      if (this._shouldGenerateV8HeapSnapshot) {
+        // Triggering a heap snapshot is more aggressive than just calling `global.gc()`,
+        // but it's also quite slow. Only do it if we still think we're leaking.
+        // See: https://github.com/nodejs/node/pull/48510#issuecomment-1719289759
+        (0, _nodeV().getHeapSnapshot)();
+      }
+      for (let i = 0; i < 10; i++) {
+        await tick();
+      }
+    }
+    return this._isReferenceBeingHeld;
+  }
+  _runGarbageCollector() {
+    const isGarbageCollectorHidden = globalThis.gc == null;
+
+    // GC is usually hidden, so we have to expose it before running.
+    (0, _nodeV().setFlagsFromString)('--expose-gc');
+    (0, _nodeVm().runInNewContext)('gc')();
+
+    // The GC was not initially exposed, so let's hide it again.
+    if (isGarbageCollectorHidden) {
+      (0, _nodeV().setFlagsFromString)('--no-expose-gc');
+    }
+  }
+}
+exports["default"] = LeakDetector;
+})();
+
+module.exports = __webpack_exports__;
+/******/ })()
+;

node_modules/jest-leak-detector/build/index.mjs

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+import cjsModule from './index.js';
+
+export default cjsModule.default;

node_modules/jest-leak-detector/package.json

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+{
+  "name": "jest-leak-detector",
+  "version": "30.4.1",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jestjs/jest.git",
+    "directory": "packages/jest-leak-detector"
+  },
+  "license": "MIT",
+  "main": "./build/index.js",
+  "types": "./build/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./build/index.d.ts",
+      "require": "./build/index.js",
+      "import": "./build/index.mjs",
+      "default": "./build/index.js"
+    },
+    "./package.json": "./package.json"
+  },
+  "dependencies": {
+    "@jest/get-type": "30.1.0",
+    "pretty-format": "30.4.1"
+  },
+  "devDependencies": {
+    "@types/node": "*"
+  },
+  "engines": {
+    "node": "^18.14.0 || ^20.0.0 || ^22.0.0 || >=24.0.0"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "gitHead": "b3b4a09ed3005369dacc7466d1d2122797283785"
+}