This is an old revision of the document!
OHDSI unit testing for R follows the standard R practice using test_that: A folder named 'tests' is created in the root of the package, and this folder contains
The file 'testthat.R' should have the following content:
library(testthat) library(<package name>) test_check("<package name>")
The sub-folder 'testthat` should contain one or more R scripts whose file name starts with 'test-' (e.g. 'test-connection.R'. Each file should contain one or more `test_that` blocks, for example
test_that("Function x returns 2", { expect_equal(x(), 2) })
Unit tests are triggered when
Your collaborators will appreciate it if you make sure the package passes check before pushing changes to the repository.
We use codecov in combination with the covr package to measure which lines of codes are covered by at least one unit test. Two additions need to be made to .travis.yml to enable code coverage: