testthat: try_again – R documentation

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try_again

Try evaluating an expressing multiple times until it succeeds.

Try evaluating an expressing multiple times until it succeeds.

try_again(times, code)

`times`	Maximum number of attempts.
`code`	Code to evaluate

third_try <- local({
  i <- 3
  function() {
    i <<- i - 1
    if (i > 0) fail(paste0("i is ", i))
  }
})
try_again(3, third_try())

Unit Testing for R

v3.0.2

MIT + file LICENSE

Authors

Hadley Wickham [aut, cre], RStudio [cph, fnd], R Core team [ctb] (Implementation of utils::recover())

Initial release