test_that("vld_range", {
  expect_true(vld_range(numeric(0)))
  expect_true(vld_range(numeric(0), c(1, 1)))
  expect_true(vld_range(NA_real_))
  expect_true(vld_range(1))
  expect_true(vld_range(1:3 / 3))
  expect_true(vld_range(numeric(0), 1L))

  expect_false(vld_range(-1))
  expect_true(vld_range(c(-1, -1), c(-2, -1)))
  expect_true(vld_range(c(NA, 1), 1:2))
})

test_that("chk_range", {
  expect_identical(chk_range(1), 1)
  expect_invisible(chk_range(1))

  expect_chk_error(chk_range(-1), "^`-1` must be between 0 and 1, not -1[.]$")
  expect_chk_error(chk_range(c(-1, NA)), "^`c[(]-1, NA[)]` must have values between 0 and 1[.]$")
  expect_chk_error(chk_range(2, c(1, 1)), "^`2` must be 1, not 2[.]$")
  expect_chk_error(chk_range(c(2, 1), c(1, 1)), "^`c[(]2, 1[)]` must have values of 1[.]$")
  expect_chk_error(chk_range(2, c(1, 1), x_name = 1), "^1 must be 1, not 2[.]$")

  expect_chk_error(chk_range(-1, inclusive = FALSE), "^`-1` must be between 0 and 1 exclusive, not -1[.]$")
  expect_chk_error(chk_range(c(-1, NA), inclusive = FALSE), "^`c[(]-1, NA[)]` must have values between 0 and 1 exclusive[.]$")
  expect_chk_error(chk_range(2, c(1, 1), inclusive = FALSE), "^`2` must be between 1 and 1 exclusive, not 2[.]$")
  expect_chk_error(chk_range(c(2, 1), c(1, 1), inclusive = FALSE), "^`c[(]2, 1[)]` must have values between 1 and 1 exclusive[.]$")
  expect_chk_error(chk_range(2, c(3, 4), inclusive = FALSE, x_name = 1), "^1 must be between 3 and 4 exclusive, not 2[.]$")
})

test_that("vld_lt", {
  expect_true(vld_lt(numeric(0)))
  expect_true(vld_lt(NA))
  expect_true(vld_lt(-1))
  expect_true(vld_lt(c(-1, -Inf)))
  expect_false(vld_lt(0))
  expect_false(vld_lt(1))
})

test_that("chk_lt", {
  expect_identical(chk_lt(-1), -1)
  expect_invisible(chk_lt(-1))
  expect_chk_error(chk_lt(1), "^`1` must be less than 0, not 1[.]$")
  expect_chk_error(chk_lt(c(1, -1)), "^`c[(]1, -1[)]` must have values less than 0[.]$")
  expect_chk_error(chk_lt(1, x_name = -1), "^-1 must be less than 0, not 1[.]$")
})

test_that("vld_lte", {
  expect_true(vld_lte(numeric(0)))
  expect_true(vld_lte(NA))
  expect_true(vld_lte(-1))
  expect_true(vld_lte(c(-1, -Inf)))
  expect_true(vld_lte(0))
  expect_false(vld_lte(1))
})

test_that("chk_lte", {
  expect_identical(chk_lte(-1), -1)
  expect_invisible(chk_lte(-1))
  expect_chk_error(chk_lte(1), "^`1` must be less than or equal to 0, not 1[.]$")
  expect_chk_error(chk_lte(c(1, -1)), "^`c[(]1, -1[)]` must have values less than or equal to 0[.]$")
  expect_chk_error(chk_lte(1, x_name = "0"), "^0 must be less than or equal to 0, not 1[.]$")
})

test_that("vld_gt", {
  expect_true(vld_gt(numeric(0)))
  expect_true(vld_gt(NA))
  expect_true(vld_gt(1))
  expect_true(vld_gt(c(1, Inf)))
  expect_false(vld_gt(0))
  expect_false(vld_gt(-1))
})

test_that("chk_gt", {
  expect_identical(chk_gt(1), 1)
  expect_invisible(chk_gt(1))
  expect_chk_error(chk_gt(-1), "^`-1` must be greater than 0, not -1[.]$")
  expect_chk_error(chk_gt(c(1, -1)), "^`c[(]1, -1[)]` must have values greater than 0[.]$")
  expect_chk_error(chk_gt(-1, x_name = "`a number`"), "^`a number` must be greater than 0, not -1[.]$")
})

test_that("vld_gte", {
  expect_true(vld_gte(numeric(0)))
  expect_true(vld_gte(NA))
  expect_true(vld_gte(1))
  expect_true(vld_gte(c(1, Inf)))
  expect_true(vld_gte(0))
  expect_false(vld_gte(-1))
})

test_that("chk_gte", {
  expect_identical(chk_gte(1), 1)
  expect_invisible(chk_gte(1))
  expect_chk_error(chk_gte(-1), "^`-1` must be greater than or equal to 0, not -1[.]$")
  expect_chk_error(chk_gte(c(1, -1)), "^`c[(]1, -1[)]` must have values greater than or equal to 0[.]$")
  expect_chk_error(chk_gte(-1, x_name = "another number"), "^Another number must be greater than or equal to 0, not -1[.]$")
})