source("helper/helper.R")

if (exists("hasName", envir = getNamespace("utils"))) {
  f = get("hasName", envir = getNamespace("utils"))
  expect_same = makeCompareFun(f, backports:::hasName)

  x = list(1, a = 12, bbb = 99)
  expect_same(x, "a")
  expect_same(x, "c")
  expect_same(x, "bbb")
  expect_same(x, "b")
}