How to reset emulator DB before each test?

Question

I'm running tests with the gcloud datastore emulator for node.
I want to reset the db before each test.

Is there a quick way like a 'drop' command or something I can use in a beforeEach block ?

Lucretialucretius

Answer 1

Just simply remove the db file. Usually, it is ~/.config/gcloud/emulators/datastore/WEB-INF/appengine-generated/local_db.bin.

Yemane

How can I do that in a beforeEach block with mocha ? I'm not sure that will work while the emulator is already up. It expects some file to exist during session. – Lucretialucretius

Just delete the file, you can use del or rimraf for that. Tested it, I can delete local_db.bin while emulator is running, and it works fine. – Yemane

ok thanks ! Since I want to do it in a beforeEach block, I used node fs module – Lucretialucretius

Answer 2

You could also send a POST /reset request to the emulator, mentioned here.

Carolincarolina