@memlab/api
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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 });
/* eslint-disable @typescript-eslint/ban-ts-comment */
const index_1 = require("../../index");
const E2ETestSettings_1 = require("./lib/E2ETestSettings");
beforeEach(E2ETestSettings_1.testSetup);
function inject() {
// @ts-ignore
window.injectHookForLink4 = () => {
const arr = [];
for (let i = 0; i < 10000; ++i) {
arr.push('duplicated string value' + (i % 1));
}
// @ts-ignore
window.__injectedValue = arr;
};
}
test('String analysis works as expected', () => __awaiter(void 0, void 0, void 0, function* () {
const result = yield (0, index_1.warmupAndTakeSnapshots)({
scenario: E2ETestSettings_1.scenario,
evalInBrowserAfterInitLoad: inject,
});
// test analysis from auto loading
let analysis = new index_1.StringAnalysis();
yield analysis.run();
let dupStrings = analysis.getTopDuplicatedStringsInCount();
expect(dupStrings[0].n).toBe(10000);
expect(dupStrings[0].str).toBe('duplicated string value0');
// test analysis from file
const snapshotFile = result.getSnapshotFiles().pop();
analysis = new index_1.StringAnalysis();
yield analysis.analyzeSnapshotFromFile(snapshotFile);
dupStrings = analysis.getTopDuplicatedStringsInCount();
expect(dupStrings[0].n).toBe(10000);
expect(dupStrings[0].str).toBe('duplicated string value0');
// expect incorrect use of heap analysis to throw
const snapshotDir = result.getSnapshotFileDir();
analysis = new index_1.StringAnalysis();
expect(() => __awaiter(void 0, void 0, void 0, function* () { return yield analysis.analyzeSnapshotsInDirectory(snapshotDir); })).rejects.toThrowError();
}), E2ETestSettings_1.testTimeout);
test('analyze function works as expected', () => __awaiter(void 0, void 0, void 0, function* () {
const result = yield (0, index_1.warmupAndTakeSnapshots)({
scenario: E2ETestSettings_1.scenario,
evalInBrowserAfterInitLoad: inject,
});
// test analysis from auto loading
const analysis = new index_1.StringAnalysis();
yield (0, index_1.analyze)(result, analysis);
const dupStrings = analysis.getTopDuplicatedStringsInCount();
expect(dupStrings[0].n).toBe(10000);
expect(dupStrings[0].str).toBe('duplicated string value0');
}), E2ETestSettings_1.testTimeout);