* Add TTY check and argument to disable it (#50603)
* Fix formatting
* add changelog
* rename flag and updated help description
* add tests for tty check
* replace deprecated uses of assertRaisesRegexp to assertRaisesRegex
* fix yaml syntax
* shorten line 79
* Revert "replace deprecated uses of assertRaisesRegexp to assertRaisesRegex"
This reverts commit cea5fe1655.
* change back to assertRaisesRegexp