Plugin package tests previously ran only on Linux, so Windows-
specific failures were never caught. Run them in CI and make the
affected tests portable across platforms.
Signed-off-by: Ville Vesilehto <ville@vesilehto.fi>
Enable the usetesting linter in golangci.yml configuration to
enforce proper testing practices. Replace manual temporary
directory and file creation with t.TempDir() in test files.
This improves test reliability by ensuring proper cleanup and
follows Go testing best practices.
Signed-off-by: Ville Vesilehto <ville@vesilehto.fi>
Avoid Go 1.20 test error by not attempting to close the testing temp
file unless there was an error in Read().
* Use a CreateTemp() to create unique test files.
* Defer the deletion of the temp file.
Woarkaround for: https://github.com/golang/go/issues/59938
Signed-off-by: SuperQ <superq@gmail.com>
