R/test-helpers.R

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local_devtools_package <- function(path, ..., env = parent.frame()) {
  pkgload::load_all(path, ..., quiet = TRUE)
  defer(pkgload::unload(pkgload::pkg_name(path)), scope = env)
}

defer <- function(expr, scope = parent.frame()) {
  expr <- enquo(expr)

  call <- expr(on.exit(rlang::eval_tidy(!!expr), add = TRUE))
  eval_bare(call, scope)

  invisible()
}