Archiver seems leaking memory in Jest tests just by importing it

[voroshkov]

Running Jest tests on my project I noticed a constant memory consumption growth. A short investigation revealed that if I comment out the archiver import statement, memory gets released after each tests set execution.
Here's the simple setup that reproduces the issue:

There's a set of 20 test files, each having the same code:

// my_test1.e2e.js, my_test2.e2e.js ...

import archiver from 'archiver';

describe(`describe`, () => {
    // make sure to collect garbage before each test (run node with --expose-gc option)
    beforeEach(() => global.gc());
    // introducing a timeout to watch for memory growth
    test('test', async () => await new Promise(r => setTimeout(r, 3000)));
});

Jest config is as simple as:

// jest.config.e2e.js

module.exports = {
    // The test environment that will be used for testing
    testEnvironment: 'node',

    // The glob patterns Jest uses to detect test files
    testMatch: ['**/__tests__/**/my_test*.e2e.js'],
};

Run the tests with the following command (use --runInBand to make Jest run all tests subsequently in a single node process):

node --expose-gc node_modules/jest/bin/jest --config="jest.config.e2e.js" --runInBand

Result:

And here's the Node process monitoring results captured while running the tests. It clearly shows that memory allocation grows with each subsequent tests set execution:

And here's what I have after commenting out the import archiver from 'archiver'; statement in all test files:

[voroshkov]

This seems to be the issue in graceful-fs, which had been fixed 11 days ago: isaacs/node-graceful-fs#137

You just need to update the dependency in package.json

[oleksiygontariownit]

Any update on this issue?