@memlab/core
Version:
memlab core libraries
97 lines (96 loc) • 4.1 kB
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());
});
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const Config_1 = __importDefault(require("../../lib/Config"));
const NodeHeap_1 = require("../../lib/NodeHeap");
beforeEach(() => {
Config_1.default.isTest = true;
});
const timeout = 5 * 60 * 1000;
test('Capture current node heap snapshot', () => __awaiter(void 0, void 0, void 0, function* () {
// eslint-disable-next-line @typescript-eslint/no-unused-vars
const object = { 'memlab-test-heap-property': 'memlab-test-heap-value' };
const heap = yield (0, NodeHeap_1.takeNodeMinimalHeap)();
expect(heap.hasObjectWithPropertyName('memlab-test-heap-property')).toBe(true);
}), timeout);
test('Nullified Object should not exist in heap', () => __awaiter(void 0, void 0, void 0, function* () {
let object = {
'memlab-test-heap-property': 'memlab-test-heap-value',
};
// eslint-disable-next-line @typescript-eslint/no-unused-vars
object = null;
const heap = yield (0, NodeHeap_1.takeNodeMinimalHeap)();
expect(heap.hasObjectWithPropertyName('memlab-test-heap-property')).toBe(false);
}), timeout);
test('Strongly referenced object should exist in heap', () => __awaiter(void 0, void 0, void 0, function* () {
class TestClass2 {
constructor() {
this.p1 = 'memlab-property-value-3';
}
}
class TestClass1 {
constructor(o) {
this.set = new Set();
this.set.add(o);
}
}
function buildTest() {
return new TestClass1(new TestClass2());
}
// eslint-disable-next-line @typescript-eslint/no-unused-vars
const object = buildTest();
const heap = yield (0, NodeHeap_1.takeNodeMinimalHeap)();
expect(heap.hasObjectWithClassName('TestClass1')).toBe(true);
expect(heap.hasObjectWithClassName('TestClass2')).toBe(true);
}), timeout);
test('Weakly referenced object should not exist in heap', () => __awaiter(void 0, void 0, void 0, function* () {
class TestClass4 {
constructor() {
this.p1 = 'memlab-property-value-3';
}
}
class TestClass3 {
constructor(o) {
this.set = new WeakSet();
this.set.add(o);
}
}
function buildTest() {
return new TestClass3(new TestClass4());
}
// eslint-disable-next-line @typescript-eslint/no-unused-vars
const object = buildTest();
const heap = yield (0, NodeHeap_1.takeNodeMinimalHeap)();
expect(heap.hasObjectWithClassName('TestClass3')).toBe(true);
expect(heap.hasObjectWithClassName('TestClass4')).toBe(false);
}), timeout);
test('Check annotated objects', () => __awaiter(void 0, void 0, void 0, function* () {
const o1 = {};
let o2 = {};
(0, NodeHeap_1.tagObject)(o1, 'memlab-mark-1');
(0, NodeHeap_1.tagObject)(o2, 'memlab-mark-2');
o2 = null;
const heap = yield (0, NodeHeap_1.takeNodeMinimalHeap)();
expect(heap.hasObjectWithTag('memlab-mark-1')).toBe(true);
expect(heap.hasObjectWithTag('memlab-mark-2')).toBe(false);
}), timeout);