packrat/lib/x86_64-w64-mingw32/3.6.1/rlang/tests/testthat/test-cnd.R

In jmcascalheira/LGMIberiaCluster: Research compendium for the paper "Human adaptations and palaeoenvironmental record during the Last Glacial Maximum in the Iberian Peninsula"

context("cnd")

test_that("cnd() constructs all fields", {
  cond <- cnd("cnd_class", message = "cnd message")
  expect_identical(conditionMessage(cond), "cnd message")
  expect_is(cond, "cnd_class")
})

test_that("cnd() throws with unnamed fields", {
  expect_error(cnd("class", "msg", 10), "must have named data fields")
})

test_that("restarts are established", {
  with_restarts(foo = function() {}, expect_true(rst_exists("foo")))
})

test_that("restarting() handlers pass along all requested arguments", {
  signal_foo <- function() {
    signal("", "foo", foo_field = "foo_field")
  }
  fn <- function() {
    with_handlers(signal_foo(), foo = restart_handler)
  }

  restart_handler <- restarting("rst_foo",
    a = "a",
    splice(list(b = "b")),
    .fields = c(field_arg = "foo_field")
  )

  rst_foo <- function(a, b, field_arg) {
    expect_equal(list(a, b, field_arg), list("a", "b", "foo_field"))
  }
  with_restarts(fn(), rst_foo = rst_foo)
})

test_that("cnd_type() detects condition type", {
  expect_error(cnd_type(list()), "not a condition object")
  expect_error(cnd_type(mtcars), "not a condition object")
  expect_error(cnd_type(env()), "not a condition object")
  expect_identical(cnd_type(cnd("foo")), "condition")
  expect_identical(cnd_type(message_cnd()), "message")
  expect_identical(cnd_type(warning_cnd()), "warning")
  expect_identical(cnd_type(error_cnd()), "error")
  expect_identical(cnd_type(catch_cnd(interrupt())), "interrupt")
})

test_that("bare conditions must be subclassed", {
  expect_error(cnd(), "must be subclassed")
  expect_error(signal(""), "must be subclassed")
})