context("checkInteger")

test_that("checkInteger", {
  myobj = 1L
  expect_succ_all(Integer, myobj)
  myobj = 1
  expect_fail_all(Integer, myobj)

  expect_true(testInteger(integer(0)))
  expect_false(testInteger(NULL))
  expect_false(testInteger(TRUE))
  expect_false(testInteger(FALSE))
  expect_true(testInteger(NA))
  expect_false(testInteger(NA, any.missing = FALSE))
  expect_false(testInteger(NA, all.missing = FALSE))
  expect_true(testInteger(1L))
  expect_true(testInteger(1:3, any.missing = FALSE, min.len = 1L, max.len = 3L))
  expect_false(testInteger(1:3, any.missing = FALSE, len = 5))
  expect_true(testInteger(1:3, lower = 1L, upper = 3L))
  expect_false(testInteger(1:3, lower = 5))
  expect_false(testInteger(1:3, upper = 1))

  expect_error(assertInteger(1), "integer")
})

test_that("bounds of vectors with only missings are not checked", {
  expect_true(checkInteger(NA, lower = 1))
  expect_true(checkInteger(NA_character_, upper = 10))
  expect_fail_all(Integer, 0L, lower = 1L)
  expect_fail_all(Integer, 100L, upper = 10L)
})

test_that("sorted works", {
  xu = sample(10)
  while(!is.unsorted(xu))
    xu = sample(10)
  xs = sort(xu)

  expect_true(checkInteger(xs, sorted = TRUE))
  expect_true(grepl("sorted", checkInteger(xu, sorted = TRUE), fixed = TRUE))

  expect_true(checkInteger(1L, sorted = TRUE))
  expect_true(checkInteger(integer(0), sorted = TRUE))
  expect_true(checkInteger(NA_integer_, sorted = TRUE))
  expect_true(checkInteger(rep(NA_integer_, 10), sorted = TRUE))

  for (i in 1:10) {
    x = sample(10)
    x[sample(10, sample(7:9, 1))] = NA
    if (is.unsorted(na.omit(x)))
      expect_true(grepl("sorted", checkInteger(xu, sorted = TRUE), fixed = TRUE))
    else
      expect_true(grepl("sorted", checkInteger(xu, sorted = TRUE), fixed = TRUE))
  }
})


test_that("factors are detected (#164)", {
  x = factor(letters)
  expect_error(assertInteger(x), "factor")
})

test_that("typed.missing", {
  expect_true(testInteger(NA_character_))
  expect_true(testInteger(NA_character_, typed.missing = FALSE))
  expect_false(testInteger(NA_character_, typed.missing = TRUE))

  expect_true(testInteger(character()))
  expect_true(testInteger(character(), typed.missing = FALSE))
  expect_false(testInteger(character(), typed.missing = TRUE))
})