Many browser windows open when running tests

[YuriKopshev]

Many browser windows open when running tests

[tmilar]

this is the default and expected behavior, to be able to run multiple tests in parallel.

If you don't want or need it, you can use --runInBand option, which will instead run tests serially, opening only 1 window/tab at a time. This is also a good idea for low resource environments like CI.

[gregberge]

Hello @YuriKopshev, @tmilar is right, --runInBand is the correct way to run tests in the same browser. You can also adjust the number of tests running in parallel in Jest config.

[YuriKopshev]

Thanks guys for your answers.
Yes, using the -i flag solves the issue. But if you look at my screencast attached to the question, then it seems to me that opening so many browsers for 3 tests does not look normal. At the same time, as I wrote above, there were no such problems in earlier versions of jest-puppeteer.
And the main problem is that you can’t find the right one among the huge number of tabs, where you can see how your tests are going! This is the main problem that caused me to ask the question.