diff options
| -rw-r--r-- | doc/development/testing_guide/frontend_testing.md | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/doc/development/testing_guide/frontend_testing.md b/doc/development/testing_guide/frontend_testing.md index 7dc89a3fcdb..91004bf177d 100644 --- a/doc/development/testing_guide/frontend_testing.md +++ b/doc/development/testing_guide/frontend_testing.md @@ -20,9 +20,18 @@ We have started to migrate frontend tests to the [Jest](https://jestjs.io) testi Jest tests can be found in `/spec/frontend` and `/ee/spec/frontend` in EE. -It is not yet a requirement to use Jest. You can view the -[epic](https://gitlab.com/groups/gitlab-org/-/epics/873) of issues -we need to solve before being able to use Jest for all our needs. +### When should I use Jest over Karma? + +If you need to update an existing Karma test file (found in `spec/javascripts`), you do not +need to migrate the whole spec to Jest. Simply updating the Karma spec to test your change +is fine. It is probably more appropriate to migrate to Jest in a separate merge request. + +If you need to create a new test file, we strongly recommend creating one in Jest. This will +help support our migration and we think you'll love using Jest. + +As always, please use discretion. Jest solves a lot of issues we experienced in Karma and +provides a better developer experience, however there are potentially unexpected issues +which could arise (especially with testing against browser specific features). ### Differences to Karma |