Merged docker-utils and delta tests into a single test suite. They are
now ran as part of the integration tests using the real engine.
Change-type: patch
This commit also changes the test:integration command to run integration
tests as different processes. This allows to avoid any test leaking into
each-other because of the use of singletons. This however has the side
effect of tests being slower, but that is a forcing function to refactor
the code.
Update-lock tests now use the actual filesystem for testing, instead of
relying on stubs and spies.
This commit also fixes a small bug with update-lock that would cause a
`PromiseRejectionHandledWarning` when the lock callback would throw.
This sets up the new `test/unit` and `test/integration` folders
and starts classification of some of the test files.
Note that unit tests include, `fs-utils` and `system-info` tests.
While these tests interact with the filesystem, the implementation
of these modules is simple enough, and the tests are fast enough to
allow these tests to fall under the `unit` test category (according to
test/README)
Change-type: patch
