Unison tests keep failing saying the "tests timed out"

Programming Unison
1

I had solved the alergies exercise but when i try submitting the code the tests time out even though my solution doesn’t have any performance bottlenecks, at least as far as i can tell. I do use recursion, though i don’t expect it to be a problem.

Here is my solution

allergies.allergicTo : Text -> Nat -> Boolean
allergies.allergicTo allergen score =
  List.contains allergen (allergies.list score)

allergies.list : Nat -> [Text]
allergies.list = cases
  x | x >= 256 -> 
        match x 
          |> Nat.toFloat
          |> Float.logBase 2.0
          |> Float.floor
          |> Float.pow 2.0
          |> Float.toNat with
        Some y -> list (x - y)
        None -> []

  x | x >= 128 -> "cats" +: list (x - 128)
  x | x >= 64 -> "pollen" +: list (x - 64)
  x | x >= 32 -> "chocolate" +: list (x - 32)
  x | x >= 16 -> "tomatoes" +: list (x - 16)
  x | x >= 8 -> "strawberries" +: list (x - 8)
  x | x >= 4 -> "shellfish" +: list (x - 4)
  x | x >= 2 -> "peanuts" +: list (x - 2)
  x | x >= 1 -> "eggs" +: list (x - 1)
  _ -> []

I have tested the code locally and all of the tests pass

screenshot of tests being run via the ucm
screenshot of tests being run via the ucm990×981 187 KB

I am using the exercism cli to submit my answers.

So is my solution really slow or is the unison test runner unreliable?
Thanks in advance for anybody willing to answer.

2

(cc @rlmark :slight_smile:)

1 Like
3

I had a similar problem. If you haven’t already, try submitting your solution again with an extended timeout?

exercism submit --timeout 100

4

The --timeout flag doesn’t change the test runner timeout.

» exercism submit --help
Submit your solution to an Exercism exercise.

...

Global Flags:
      --timeout int    override the default HTTP timeout (seconds)
5

Thanks @IsaacG. I suggested --timeout because it appears to work for me.

I’ll post again when I’ve submitted a few more Unison exercises with and without the extended timeout.

6

I’ve submitted enough Unison exercises now to confirm that it was beginners luck and --timeout doesn’t affect whether tests time out.

7

I had the same happen on the Hello, World! example, so I don’t think it’s related to the content of the submissions themselves?

8

With hello world, it is unlikely that it is caused by the contents. It’ll be the tool that we use to run tests (the test runner). @rlmark are there avenues for improvement we can use? For example upgrading to later versions?

9

Hmm, apologies for the delay; I was not getting email pings before. I’ll likely have some more time to look at the timeout issue next week. Upgrading the Exercism track to a new version of Unison is definitely a thing we can try!

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