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authorWinnie Hellmann <winnie@gitlab.com>2019-06-25 15:28:33 +0000
committerMarcia Ramos <marcia@gitlab.com>2019-06-25 15:28:33 +0000
commit4a125e97ccd9adf1007e20f3e7415d973d02486f (patch)
treec909264c6fe77afa2ececb44a8fa2a5f9844922a
parentc0b1ae19c3d5b01f4daccba826bdedbebc7aa42e (diff)
downloadgitlab-ce-4a125e97ccd9adf1007e20f3e7415d973d02486f.tar.gz
Clarify that Jest does not use Webpack (docs)
-rw-r--r--doc/development/testing_guide/frontend_testing.md2
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/development/testing_guide/frontend_testing.md b/doc/development/testing_guide/frontend_testing.md
index 4c9d1684c00..3949f61d4d4 100644
--- a/doc/development/testing_guide/frontend_testing.md
+++ b/doc/development/testing_guide/frontend_testing.md
@@ -28,6 +28,8 @@ we need to solve before being able to use Jest for all our needs.
- Jest runs in a Node.js environment, not in a browser. Support for running Jest tests in a browser [is planned](https://gitlab.com/gitlab-org/gitlab-ce/issues/58205).
- Because Jest runs in a Node.js environment, it uses [jsdom](https://github.com/jsdom/jsdom) by default.
+- Jest does not have access to Webpack loaders or aliases.
+ The aliases used by Jest are defined in its [own config](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/jest.config.js).
- All calls to `setTimeout` and `setInterval` are mocked away. See also [Jest Timer Mocks](https://jestjs.io/docs/en/timer-mocks).
- `rewire` is not required because Jest supports mocking modules. See also [Manual Mocks](https://jestjs.io/docs/en/manual-mocks).
- The following will cause tests to fail in Jest: