Custom threshold for test time warning/errors

🚀 Feature Proposal

Provide a custom way to set the thresholds for when the time in the logged output is highlighted (red, for example, when a suite/test takes a long time).

Even a way to turn these warning colors off would be useful.

Motivation

Some tests are known to take a long time (e.g. spinning up databases, testing database operations), and it’d be nice to not be warned with those colors when running tests.

Example

In the config, some options like timeWarningThreshold where the user could specify the threshold themselves. Or, disabledTimeWarnings to turn them off completely.

[sylvain-hamel]

I use jest to drive selenium tests and it reports a test that takes 12 seconds as being slow (the duration is highlighted in red). In this context 12 seconds is fine.

In jest.config.js I’d like an option to change the default

  slowTestDurationThreshold: 30

The value is hardcoded at 5 seconds at the moment. https://github.com/facebook/jest/blob/b4897796bcbcb972234ef699b3e9e0f6b8724132/packages/jest-reporters/src/get_result_header.js#L44-L46

https://stackoverflow.com/questions/54893177/jest-threshold-for-a-test-to-be-reported-as-slow

[SimenB]

Released in 26.2.0