How to test with toBrowser()?

[aarreedd]

I am using streamDownload() and toBrowser() to download a CSV. I am trying to write a test that verifies a CSV was downloaded and checks the file contents.

However, toBrowser() appears to call exit() which aborts the rest of the request.

simple-excel/src/SimpleExcelWriter.php

Line 230 in 9e7f872

public function toBrowser()

Maybe this is outside of the scope of this package, but is there a way to test a download worked?