test_collection: Run a collection of tests
In lorenzwalthert/stylermd: Style Markdown text

Run transformations on all *-in files in a test directory and compare them with their *-out counterpart.

test_collection(test, sub_test = NULL, write_back = TRUE,
  write_tree = FALSE, transformer, pattern = paste0(if
  (!is.null(sub_test)) paste0("^", sub_test, ".*"),
  "\\-in\\.*(txt|Rmd)*$"), pattern_suffix, ...)

`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. `sub_test` must match the beginning of file names in tests/testthat. `NULL` matches all files.
`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. Note that this needs R >= 3.2 (see `set_arg_write_tree()`. If the argument is set to `NA`, the function determines whether R >= 3.2 is in use and if so, trees will be written.
`transformer`	A function to apply to the content of `in_item`.
`...`	Parameters passed to transformer function.

Each file name that matches test and sub_test and ends with "-in" is considered as an input to test. Its counterpart, the reference to compare it against is the *-out file. It is constructed by taking the substring of the *-in.R file before the first dash and adding -out.

lorenzwalthert/stylermd documentation built on May 5, 2019, 1:36 a.m.