Run transformations on all *-in.R files in a test directory and compare them with their *-out.R counterpart.
test_collection(test, sub_test = NULL, write_back = TRUE, write_tree = TRUE, transformer, ...)
| test | The test to run. It corresponds to a folder name in tests/testthat. |
|---|---|
| sub_test | A regex pattern to further reduce the amount of test files
to be tested in the test. |
| write_back | Whether the results of the transformation should be written to the output file. |
| write_tree | Whether or not the tree structure of the test should be computed and written to a file. |
| transformer | A function to apply to the content of |
| ... | Parameters passed to transformer function. |
Each file name that matches test and sub_test and ends with
"-in.R" is considered as an input to test. Its counterpart,
the reference to compare it against is the *-out.R file. It is constructed
by taking the substring of the *-in.R file before the
first dash and adding -out.R. This allows for multiple in.R files to
share one out.R file. You could have one_line-out.R as the reference to
compare one_line-random-something-stuff-in.R and
one_line-random-but-not-so-much-in.R.
This also implies that -out.R files cannot have more than one dash in their name, i.e. just the one before out.R.