Run tests when test file is saved

[joshua-clarify]

Clear and concise description of the problem

Support running tests on save

Suggested solution

The equivalent of this config from vscode-jest

"jest.runMode": {
  "type": "on-save",
  "testFileOnly": true,
}

I think this is a good balance of performance vs convenience.

Even better is if it runs corresponding tests
i.e. saving src/utils.ts run src/utils.test.ts

Alternative

No response

Additional context

No response

Validations

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• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[MilanKovacic]

This is already supported, take a look at Continuous run option (the eye icon).

[joshua-clarify]

For some reason I can't get it to work. Nothing runs when I hit save