1846510 - Improve IndexedDB idle maintenance testing

Status: NEW

(Core :: Storage: IndexedDB, task, P3)

Description

[Jari Jalkanen]

IndexedDB idle maintenance is tested in the test_idle_maintenance.js test by writing some data to a datastore, then removing it and sending a fake signal which should trigger the idle maintenance. The problems with this timing based test are that

• the write may not have started or is ongoing when the idle maintenance is triggered
• there's not enough data written that any maintenance is actually done
• the write or the maintenance may be ongoing when the expectations are checked at the end

It would be good to find a more robust way to test this feature, and cover

• the expected idle maintenance flow
• the cases when the maintenance gets interrupted by shutdown
• the case when maintenance is interrupted by IndexedDB requests
• the case when there are not enough threads
• database/disk hangs
  and many more.