@memlab/api
Version:
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JavaScript
;
/**
* 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.
*
* @format
* @oncall memory_lab
*/
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
const core_1 = require("@memlab/core");
class TestObject {
constructor() {
this.arr1 = [1, 2, 3];
this.arr2 = ['1', '2', '3'];
}
}
test('memory test', () => __awaiter(void 0, void 0, void 0, function* () {
core_1.config.muteConsole = true;
let obj = new TestObject();
// get a heap snapshot of the current program state
let heap = yield (0, core_1.takeNodeMinimalHeap)();
// call some function that may add references to obj
// rabbitHole()
expect(heap.hasObjectWithClassName('TestObject')).toBe(true);
// eslint-disable-next-line @typescript-eslint/no-unused-vars
obj = null;
heap = yield (0, core_1.takeNodeMinimalHeap)();
// if rabbitHole does not add new references, the obj can be GCed
expect(heap.hasObjectWithClassName('TestObject')).toBe(false);
}), 60000);