Treat dumb terminals as noninteractive

[nickserv]

Summary

Fixes #5236 and related issues outside of Emacs. Essentially, the issue is that isInteractive only checks process.stdin.isTTY and CI environment variables, but it should treat a shell with TERM set to dumb as noninteractive even if is has a TTY (not all TTYs support interactive escape codes). Note that while Emacs' Compilation mode supports interactive comint processes with a prefix argument, it is still not supported with this Jest patch (for example jest --watch will ignore input).

Test plan

• yarn test packages/jest-util/src/__tests__/is_interactive.test.js passes
• Running yarn link and jest in another project in Emacs successfully hides mode escape codes (though is an extra �[999D right after the last PASS line that I can't figure out how to remove, I'd appreciate feedback)

[codecov-io]

Codecov Report

Merging #5237 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #5237   +/-   ##
=======================================
  Coverage   61.18%   61.18%           
=======================================
  Files         202      202           
  Lines        6765     6765           
  Branches        3        4    +1     
=======================================
  Hits         4139     4139           
  Misses       2625     2625           
  Partials        1        1

Impacted Files	Coverage Δ
packages/jest-util/src/is_interative.js	100% <ø> (ø)	⬆️

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[SimenB]

Feels like there should exist some module which has this logic already

[nickserv]

I had the same feeling, but I couldn't find one that specifically checks for a dumb terminal without doing other stuff. For example supports-color takes into account if a terminal is dumb but it's coupled with color related features that we don't want to check in this case.

[cpojer]

Thanks for submitting a well detailed issues and PR to Jest to fix an issue you were running into!

[github-actions]

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