Pow: Speedup tests by reducing password hashing rounds

[jmpressman]

When using pbkdf2_elixir (https://github.com/riverrun/pbkdf2_elixir) there is a way to speed up testing by adding the following line to config/test.exs:

config :pbkdf2_elixir, :rounds, 1

Is there a way to similarly reduce the hashing rounds during tests with Pow? I have done a cursory check of the documentation, open issues, and closed issues but did not find any indication that there is a way to do this.

[Schultzer]

If you look at this line, the same is going on here.

https://github.com/danschultzer/pow/blob/9c720e0950593502f78e1377d2d469e915a62ad2/config/test.exs#L17

[jmpressman]

Ah indeed. Is this a default behavior then? The only reason I ask is that my tests are running quite slowly. Considering they are fairly basic, I figured it likely had to do with password hashing seeing as I create a user for the tests.

[Schultzer]

I cannot answer your question. I have no idea how your environment or tests are setup.

You could try adding that line in your test config and tweak the iteration to see if it changes anything.

[jmpressman]

That was exactly what needed to be done! For those who may run into this down the road...

Add the following to _your project's_ config/test.exs:

config :pow, Pow.Ecto.Schema.Password, iterations: 1

Just because Pow's internal tests are configured this way does not mean your project's tests are! Thanks @Schultzer, closing the issue now.

[dkuku]

@jmpressman this works when I add it in config.exs but not when in test.exs

ok sorry - I added it to test but seeded in dev. Works fine when added to dev

[miXwui]

I'm using bcrypt_elixir instead of the default pbkdf2_elixir and tried adding

config :pow, Pow.Ecto.Schema.Password, iterations: 1

to config/test.exs and it didn't work.

However, adding

config :bcrypt_elixir, :log_rounds, 4

from Step 3 in https://github.com/riverrun/bcrypt_elixir#installation works.

Hopefully this helps someone, but I'm assuming @danschultzer that config :pow, Pow.Ecto.Schema.Password, iterations: 1 only works when using Pow's default pbkdf?

[danschultzer]

@miXwui Correct, that config only applies to the default password hashing module in Pow.