Context
HomeDBManager lacks of direct tests, which makes hard to make rework or refactorations.
Proposed solution
Specifically here, I introduce tests which call exposed UsersManager methods directly and check their result.
Also:
I removed updateUserName which seems to me useless (updateUser does the same work)
Taking a look at the getUserByLogin methods, it appears that Typescirpt infers it returns a Promise<User|null> while in no case it may resolve a nullish value, therefore I have forced to return a Promise<User> and have changed the call sites to reflect the change.
Related issues
I make this change for then working on #870
Summary:
This moves some more tests to core that would be useful for ANCT,
which had been stuck in grist-saas due to some entanglements with
sendgrid and billing. For sendgrid, I've moved around just enough
material to permit the tests to run mostly unchanged. Ideally
the interface to a notification system would be generalized, but
that's a bigger project.
Test Plan:
checked that tests are likely to run as expected
in core using preview laid out by ./buildtools/build_core.sh
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D4149
