Interface ...UserConfig incorrectly extends interface ...UserConfig

[1EDExg0ffyXfTEqdIUAYNZGnCeajIxMWd2vaQeP]

Describe the bug

When executing tsc, I get the following error:

node_modules/vitest/dist/config.d.ts:75:11 - error TS2430: Interface 'import("/mnt/c/XXX/node_modules/vitest/dist/config").UserConfig' incorrectly extends interface 'import("/mnt/c/XXX/node_modules/vite/dist/node/index").UserConfig'.
  Types of property 'test' are incompatible.
    Type 'InlineConfig | undefined' is not assignable to type 'InlineConfig'.
      Type 'undefined' is not assignable to type 'InlineConfig'.

75 interface UserConfig extends UserConfig$2 {
             ~~~~~~~~~~

Reproduction

https://stackblitz.com/edit/vitest-dev-vitest-bqveyc

System Info

WSL

  System:
    OS: Linux 4.4 Ubuntu 22.10 22.10 (Kinetic Kudu)
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
    Memory: 9.21 GB / 31.65 GB
    Container: Yes
    Shell: 5.2.2 - /bin/bash
  Binaries:
    Node: 19.9.0 - /usr/bin/node
    Yarn: 1.22.19 - /usr/bin/yarn
    npm: 9.6.3 - /usr/bin/npm
  npmPackages:
    @vitejs/plugin-react: ^3.1.0 => 3.1.0 
    @vitest/coverage-c8: ^0.30.1 => 0.30.1 
    vite: ^4.2.1 => 4.2.1 
    vitest: ^0.30.1 => 0.30.1

Used Package Manager

npm

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[stackblitz]

Start a new pull request in StackBlitz Codeflow.

• vitest-dev-vitest-bqveyc (Open reproduction)

[1EDExg0ffyXfTEqdIUAYNZGnCeajIxMWd2vaQeP]

The error goes away if exactOptionalPropertyTypes is set to false.

[1EDExg0ffyXfTEqdIUAYNZGnCeajIxMWd2vaQeP]

I think this is simply a mismatch between

vitest/packages/vitest/src/config.ts

Line 5 in f3c3607

test?: ViteUserConfig['test']

and

vitest/packages/vitest/src/types/vite.ts

Line 10 in f3c3607

test?: VitestInlineConfig

[sheremet-va]

I think this is simply a mismatch between

Check your package lock. You have several Vite versions installed.

[1EDExg0ffyXfTEqdIUAYNZGnCeajIxMWd2vaQeP]

Good idea, but I don't think that is the case:

$ npm ls --all | grep vite
├─┬ @vitejs/plugin-react@4.0.0
│ └── vite@4.3.4 deduped
├─┬ @vitest/coverage-c8@0.30.1
│ └── vitest@0.30.1 deduped
├─┬ vite-plugin-svgr@3.1.0
│ └── vite@4.3.4 deduped
├─┬ vite@4.3.4
├─┬ vitest-fetch-mock@0.2.2
│ └── vitest@0.30.1 deduped
├─┬ vitest@0.30.1
│ ├── UNMET OPTIONAL DEPENDENCY @vitest/browser@*
│ ├─┬ @vitest/expect@0.30.1
│ │ ├── @vitest/spy@0.30.1 deduped
│ │ ├── @vitest/utils@0.30.1 deduped
│ ├─┬ @vitest/runner@0.30.1
│ │ ├── @vitest/utils@0.30.1 deduped
│ ├─┬ @vitest/snapshot@0.30.1
│ ├─┬ @vitest/spy@0.30.1
│ ├── UNMET OPTIONAL DEPENDENCY @vitest/ui@*
│ ├─┬ @vitest/utils@0.30.1
│ ├─┬ vite-node@0.30.1
│ │ └── vite@4.3.4 deduped
│ ├── vite@4.3.4 deduped

[1EDExg0ffyXfTEqdIUAYNZGnCeajIxMWd2vaQeP]

It seems to me like the typings of vite are included in types-c3c9754d.d.ts, but I'm not sure why.

[sheremet-va]

I don't see any errors in your reproduction.

[github-actions]

Hello @1EDExg0ffyXfTEqdIUAYNZGnCeajIxMWd2vaQeP. Please provide a minimal reproduction using a GitHub repository or StackBlitz. Issues marked with need reproduction will be closed if they have no activity within 3 days.

[sheremet-va]

Can reproduce it now, you left the comment in tsconfig.

[1EDExg0ffyXfTEqdIUAYNZGnCeajIxMWd2vaQeP]

Sadly, the issue doesn't seem to be fixed. I updated the stackblitz to 0.31.0, but tsc still gives two errors:

node_modules/vitest/dist/config.d.ts:75:11 - error TS2430: Interface 'import("/home/projects/vitest-dev-vitest-bqveyc/node_modules/vitest/dist/config").UserConfig' incorrectly extends interface 'import("/home/projects/vitest-dev-vitest-bqveyc/node_modules/vite/dist/node/index").UserConfig'.
  Types of property 'test' are incompatible.
    Type 'InlineConfig | undefined' is not assignable to type 'InlineConfig'.
      Type 'undefined' is not assignable to type 'InlineConfig'.

75 interface UserConfig extends UserConfig$2 {
             ~~~~~~~~~~

node_modules/vitest/dist/config.d.ts:78:11 - error TS2430: Interface 'UserWorkspaceConfig' incorrectly extends interface 'UserConfig'.
  Types of property 'test' are incompatible.
    Type 'ProjectConfig | undefined' is not assignable to type 'InlineConfig'.
      Type 'undefined' is not assignable to type 'InlineConfig'.

78 interface UserWorkspaceConfig extends UserConfig$2 {
             ~~~~~~~~~~~~~~~~~~~


Found 2 errors in the same file, starting at: node_modules/vitest/dist/config.d.ts:75

[elektronik2k5]

I can confirm: the issue happens to me too with vitest@0.31.0.

[sheremet-va]

Should be fixed in 0.31.1