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prefer-correct-test-file-name

added in: 1.6.0
warning
Pro+
preset: recommended

Warns if a file within /test folder contains a main function, but the file name doesn't end with _test.dart.

Example​

❌ Bad:

some_file.dart
// LINT: Test file name must end with '_test.dart'. Try renaming it.
void main() {
  ...
}

✅ Good:

some_file_test.dart
void main() {
  ...
}
some_other_file.dart
void helperFunction() {
  ...
}