Filipe Silva 739e5a4f53 test: add integration test for side effects (#29329)
This new tests keeps track of the known side effects for Angular ES modules.

PR Close #29329
2019-05-16 12:08:49 -07:00

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This test checks if the side effects for loading Angular packages have changed using <https://github.com/filipesilva/check-side-effects>.
Running `yarn test` will check all ES modules listed in `side-effects.json`.
Running `yarn update` will update any changed side effects.
To add a new ES module to this test, add a new entry in `side-effects.json`.
Usually the ESM and FESM should have the same output, but retained objects that were renamed during the flattening step will leave behind a different name.