Top jest issues

Jest snapshot and CSS modules

jest matchers arent exposed to be extended

Testing exported modules in the same file

Ability to report coverage on untested files.

Have a mode to print out a line for each test that's run

import jest functions instead of having globals

[Question] Is Jest a good fit for backend unit tests?

New snapshot was not written. The update flag must be explicitly passed to write a new snapshot. This is likely because this test is run in a continuous integration (CI) environment in which snapshots are not written by default.

Use Lolex as implementation for fake timers

Enhancement Discussion Help Wanted

Calls to Math are several orders of magnitude slower than when run outside of Jest

Discussion Help Wanted