Feature Proposal: Keyboard shortcut to run the nth failing test in watch mode

🚀 Feature Proposal

In watch mode, run the nth failed test by typing a string that matches this pattern: /\d+f/.

Motivation

Two motivations

1. Easy navigation to the failing test you want to tackle first when faced with a number of them, without having to copy paste the test name
2. When refactoring, oftentimes many tests will fail simultaneously. If the output is particularly noisy it can be more useful to run a single failing test. In these noisy output scenarios it can sometimes also be hard to find the names of tests in the output, so having an easy way to just pick off the first failing test would be nice

Example

• Test run shows n failing tests
• Typing 1f will rerun the test suite, but scoped to the first of the failing tests
• Hitting enter will rerun just this test
• Hitting f returns to all tests mode (same as normal f behaviour)
• Typing {n}f. where n is an integer will switch to running the nth failed test

Pitch

Relying on copying and pasting strings from reams of console output isn’t the kind of slick, sophisticated developer experience I expected when I first tried jest. I think you should aim to make running single tests as simple as any of the other keyboard nav filtration options

[SimenB]

I like this idea! What about adding it as part of typeahead, with it just filtering failing tests?

[github-actions[bot]]

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