context("UD functions")
test_that("raster2contour", {
  data("dbbmmstack")
  data("leroydbbmm")
  s <- raster2contour(leroydbbmm, levels = (o <- 1:9 / 10))
  expect_equal(as.character(o), as.character(data.frame(s)$level))
  ss <- raster2contour(dbbmmstack)
  expect_equal(unique(names(dbbmmstack)), unique(ss$individual.local.identifier))
})
test_that("udStack", {
  r1 <- abs(rnorm(10))
  r2 <- abs(rnorm(10))
  s <- stack(raster(matrix(r1 / sum(r1))), raster(matrix(r2 / sum(r2))))
  b <- brick(raster(matrix(r1 / sum(r1))), raster(matrix(r2 / sum(r2))))
  bb <- UDStack(b)
  ss <- UDStack(s)

  bb@layers[[1]]@file@NAchanged <- ss@layers[[1]]@file@NAchanged
  bb@layers[[2]]@file@NAchanged <- ss@layers[[2]]@file@NAchanged

  expect_identical(bb, ss)
})