Add test coverage enforcement via Jest config (#4590)
Add test coverage enforcement via Jest config (#4590)

Signed-off-by: brendon.caulkins <68ebe54cd5a1160aaec649c935395fe649ab889d@gmail.com>

Co-authored-by: Shimi <91d179157e4fb8ed4d1a2fb40c584b1ced338ef7@gmail.com>
HewlettPackard/grommet,HewlettPackard/grommet,grommet/grommet,grommet/grommet,grommet/grommet,HewlettPackard/grommet