💅 noExportsInTest treats source code as test files when using in-source testing

[chrisvander]

Environment information

CLI:
  Version:                      1.7.3
  Color support:                true

Platform:
  CPU Architecture:             aarch64
  OS:                           macos

Environment:
  BIOME_LOG_DIR:                unset
  NO_COLOR:                     unset
  TERM:                         "xterm-256color"
  JS_RUNTIME_VERSION:           "v18.19.1"
  JS_RUNTIME_NAME:              "node"
  NODE_PACKAGE_MANAGER:         "pnpm/8.15.4"

Biome Configuration:
  Status:                       Loaded successfully
  Formatter disabled:           false
  Linter disabled:              false
  Organize imports disabled:    false
  VCS disabled:                 false

Linter:
  Recommended:                  true
  All:                          false
  Rules:                        a11y/useValidAnchor = "off"
                                complexity/noForEach = "off"
                                nursery/useSortedClasses = "error"
                                performance/noAccumulatingSpread = "off"
                                style/noNonNullAssertion = "off"

Workspace:
  Open Documents:               0

Rule name

noExportsInTest

Playground link

https://biomejs.dev/playground/?indentStyle=space&files.main.tsx=ZQB4AHAAbwByAHQAIABjAG8AbgBzAHQAIAB0AGUAcwB0ACAAPQAgACIAYQBiAGMAZABlAGYAIgAKAAoAaQBmACAAKABpAG0AcABvAHIAdAAuAG0AZQB0AGEALgB2AGkAdABlAHMAdAApACAAewAKACAAIABjAG8AbgBzAHQAIAB7ACAAZABlAHMAYwByAGkAYgBlACwAIABlAHgAcABlAGMAdAAgAH0AIAA9ACAAaQBtAHAAbwByAHQALgBtAGUAdABhAC4AdgBpAHQAZQBzAHQACgAgACAAZABlAHMAYwByAGkAYgBlACgAIgBhACAAdABlAHMAdAAiACwAIAAoACkAIAA9AD4AIAB7AAoAIAAgACAAIABlAHgAcABlAGMAdAAoAHQAZQBzAHQAKQAuAHQAbwBFAHEAdQBhAGwAKAAiAGEAYgBjAGQAZQBmACIAKQAKACAAIAB9ACkACgB9AAoA

Expected result

When using in-source testing with Vitest, Biome detects those source code files as test files and errors on any exports inside of those files.

Code of Conduct

• I agree to follow Biome's Code of Conduct