22 Caching HTTP requests
Record HTTP calls and replay them
22.1 Package documentation
Check out https://docs.ropensci.org/vcr/ for documentation on vcr functions.
22.3 Basic usage
https://docs.ropensci.org/vcr/articles/vcr.html ## vcr enabled testing {#vcr-enabled-testing}
22.3.1 check vs. test
TLDR: Run
devtools::test()before runningdevtools::check()for recording your cassettes.
When running tests or checks of your whole package, note that you’ll get different results with
devtools::check() (check button of RStudio build pane) vs. devtools::test() (test button of RStudio build pane). This arises because devtools::check() runs in a
temporary directory and files created (vcr cassettes) are only in that temporary directory and
thus don’t persist after devtools::check() exits.
However, devtools::test() does not run in a temporary directory, so files created (vcr
cassettes) are in whatever directory you’re running it in.
Alternatively, you can run devtools::test_file() (or the “Run test” button in RStudio) to create your vcr cassettes one test file at a time.
22.3.2 CI sites: GitHub Actions, Appveyor, etc.
Refer to the security chapter.