Haskell-ide-engine: hie doesn't load test dependencies from package.yaml

[ghost]

Environment

OS: Ubuntu 18.04.4 LTS (Bionic Beaver)
hie: Version 1.1, Git revision c584f9821cf348907305706faf8b945899409811 (3811 commits) x86_64 ghc-8.6.5
stack: Version 2.1.3, Git revision 636e3a759d51127df2b62f90772def126cdf6d1f (7735 commits) x86_64 hpack-0.31.2
IDE: VS Code

VS Code Problems

Could not load module ‘Test.Hspec’
It is a member of the hidden package ‘hspec-2.7.1’.
You can run ‘:set -package hspec’ to expose it.
(Note: this unloads all the modules in the current scope.)
Use -v to see a list of the files searched for.

Could not load module ‘Test.QuickCheck’
It is a member of the hidden package ‘QuickCheck-2.13.2’.
You can run ‘:set -package QuickCheck’ to expose it.
(Note: this unloads all the modules in the current scope.)
Use -v to see a list of the files searched for.

Reproduce

1. create a new stack project, $ stack new my-project
2. change stack.yaml's resolver to resolver: lts-14.0
3. edit test/Spec.hs (from https://hspec.github.io/)

import           Test.Hspec
import           Test.QuickCheck
import           Control.Exception              ( evaluate )

main :: IO ()
main = hspec $ do
  describe "Prelude.head" $ do
    it "returns the first element of a list" $ do
      head [23 ..] `shouldBe` (23 :: Int)

    it "returns the first element of an *arbitrary* list" $ property $ \x xs ->
      head (x : xs) == (x :: Int)

    it "throws an exception if used with an empty list" $ do
      evaluate (head []) `shouldThrow` anyException

1. add test dependencies to package.yaml

  tests:
    my-project-test:
      main:                Spec.hs
      source-dirs:         test
      ghc-options:
      - -threaded
      - -rtsopts
      - -with-rtsopts=-N
      dependencies:
      - my-project
+     - hspec
+     - QuickCheck

1. create hie.yaml

cradle:
  stack:
    - path: "./app/"
      component: "my-project"
    - path: "./src/"
      component: "my-project"
    - path: "./test/"
      component: "my-project"
    - path: "./Setup.hs"
      component: "Cabal"

dependencies:
  - package.yaml

1. Open VS Code and got the errors

[jneira]

@koowashi Hi! I think this is a manifestation of #1564: try to build the project with stack build --test --no-run-tests and reload the project to check if the error is gone.
I've just tested a similar configuration and it seems once that stack has built the project with stack build --test the module is loaded succesfully even after a stack clean.
stack needs to build the dependencies in the global cache (in the $(stack path --snapshot-install-root) directory) and the error only is reproduced for me if i delete taht dir.

[ghost]

stack build --test --no-run-tests succeeded, but VSCode errors are not gone.
stack test is done correctly.

$ stack test
my-project> test (suite: my-project-test)


Prelude.head
  returns the first element of a list
  returns the first element of an *arbitrary* list
    +++ OK, passed 100 tests.
  throws an exception if used with an empty list

Finished in 0.0015 seconds
3 examples, 0 failures

I suspect my hie.yaml is wrong.
If I change hie.yaml like below, HIE can load Test.Hspec (but not Test.QuickCheck).

      - path: "./test/"
-       component: "my-project"
+       component: "hspec"

[fendor]

Your component looks wrong.
use stack ide targets to find the components of your project. Should be something like `myproject:test:myproject-tests

[ghost]

hie.yaml cradle: stack: - path: "./app/" component: "my-project:exe:my-project-exe" - path: "./src/" component: "my-project:lib" - path: "./test/" component: "my-project:test:my-project-test" - path: "./Setup.hs" component: "Cabal"

the errors have gone!