Check for body in the reponse before to read it

[jmaspons]

If the response has no body, write and empty file
FIX #35

[nealrichardson]

Thanks. This seems reasonable. Would you mind adding a test that covers this case?

[jmaspons]

Yes, I would like to add a test. Could you give me an example about how to simulate and empty response? I've seen that webfakes is used but I have no experience with it

[nealrichardson]

httr2::response() makes responses, and as it turns out, with no arguments specified, the body will be empty. So you could test that save_response() can write that to a tempfile, and probably should test that we can read it back in with load_response().

[jmaspons]

Tests added, @nealrichardson

[nealrichardson]

One minor suggestion but otherwise this looks good, thank you! Once I merge #38, can you rebase and add a NEWS bullet for this fix?

[jmaspons]

Ready to merge, @nealrichardson

[nealrichardson]

Thanks again!