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Published
20 hours ago •
cypress-io
cypress-io
Memory leak in long running single test
Current behavior:
Currently if a test runs the same actions repetitively over a long period of time, the memory of the cypress process increases until it crashes. (headless mode, video off, numTestsKeptInMemory 0) The sample to reproduce runs 15 minutes increasing the memory ~300MB. (the longer the run the more memory is used..)
Desired behavior:
Performance tests should be possible with cypress, without increasing memory and crashing.
Steps to reproduce: (app code and test code)
Config cypress.json
{
"baseUrl": "http://localhost:8080/",
"defaultCommandTimeout": 60000,
"viewportWidth": 1280,
"viewportHeight": 720,
"numTestsKeptInMemory": 0,
"video": false
}
Cypress test
describe('memory dummy test', () => {
const endTime = Date.now() + 60000 * 15;
before('visit', () => {
cy.visit('/memory-test.html');
});
it('should test', () => {
const test = () => {
cy.get('#testinput').clear().type('hello world');
cy.wait(2000);
cy.then(() => {
if (Date.now() < endTime) test();
});
};
test();
});
});
Simple static html site
<!DOCTYPE html>
<html lang="en">
<head>
</head>
<body>
<input id="testinput">
</body>
</html>
Versions
Cypress 3.2.0 / 3.5.0 / 3.6.0 Windows 10
