Testing (outside of a package)

This is a small example of testing outside of a package environment. You'll find the following files:

├── README.md
├── app.R
├── app.Rproj
├── modules.R
├── utils.R
└──  tests/
      ├── testthat/
      │   └── test-mod_abc_server.R
      └── testthat.R

3 directories, 7 files

Testing module server functions

app.R and tests/testthat/test-mod_abc_server.R show how shiny::testServer() works in an application with modules.

The tests/testthat.R file contains the code to run the tests:

library(testthat)
source("app.R")
test_dir(path = "tests/testthat/")
testthat::test_file("tests/testthat/test-mod_abc_server.R")

Note that this is currently set to test the application with modules.

Testing shiny server function

For more information on testing outside of the package environment, see this discussion on GitHub: r-lib/testthat#659