Support for domino

[cscott]

jsdom is painfully slow and has native dependencies. It would be great if jest would support using the domino DOM implementation instead: https://github.com/fgnass/domino

[jeffmo]

Having something faster than jsdom does sound intriguing -- this is worth looking into (I hadn't seen it before).

Even if we were to switch though, we'd still want to be able to run tests in Contextify contexts/Realms (so we can quickly and cheaply dispose/construct new ones) -- so I think a native dependency there would continue to be necessary for the foreseeable future

[KyleAMathews]

Perhaps use Karma?

Agree about switching off JSDOM. Test runs wildly vary in time from 2-20 seconds even for very simple 1 test files.

[ghost]

Thank you for reporting this issue and appreciate your patience. We've notified the core team for an update on this issue. We're looking for a response within the next 30 days or the issue may be closed.

[cpojer]

This should be possible by providing the testEnvironment_EXPERIMENTAL config option. I'm going to close this because it isn't on Jest's roadmap but I will most certainly welcome contributions to Jest around this. See the JSDOMEnvironment and NodeEnvironment for examples.

[github-actions]

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