epclust/tests/testthat/test-utils.R

   1 context("utils functions")
   2
   3 test_that("Helper function to split indices work properly",
   4 {
   5     indices <- 1:400
   6
   7     # bigger nb_per_set than length(indices)
   8     expect_equal(epclust:::.splitIndices(indices,500), list(indices))
   9
  10     # nb_per_set == length(indices)
  11     expect_equal(epclust:::.splitIndices(indices,400), list(indices))
  12
  13     # length(indices) %% nb_per_set == 0
  14     expect_equal(epclust:::.splitIndices(indices,200),
  15         c( list(indices[1:200]), list(indices[201:400]) ))
  16     expect_equal(epclust:::.splitIndices(indices,100),
  17         c( list(indices[1:100]), list(indices[101:200]),
  18             list(indices[201:300]), list(indices[301:400]) ))
  19
  20     # length(indices) / nb_per_set == 1, length(indices) %% nb_per_set == 100
  21     expect_equal(epclust:::.splitIndices(indices,300,min_size=1),
  22         list(1:300, 301:400))
  23     split_inds <- epclust:::.splitIndices(indices,300,min_size=200)
  24     expect_equal(length(unique(unlist(split_inds))), 400)
  25     expect_equal(length(split_inds), 2)
  26     expect_equal(length(split_inds[[1]]), 200)
  27     expect_equal(length(split_inds[[2]]), 200)
  28     expect_error(epclust:::.splitIndices(indices,300,min_size=300), "Impossible to split*")
  29
  30     # length(indices) / nb_per_set == 2, length(indices) %% nb_per_set == 42
  31     expect_equal(epclust:::.splitIndices(indices,179,min_size=1),
  32         list(1:179, 180:358, 359:400))
  33     split_inds <-epclust:::.splitIndices(indices,179,min_size=60)
  34     expect_equal(length(unique(unlist(split_inds))), 400)
  35     expect_equal(length(split_inds), 3)
  36     expect_equal(length(split_inds[[1]]), 170)
  37     expect_equal(length(split_inds[[2]]), 170)
  38     expect_equal(length(split_inds[[3]]), 60)
  39     expect_error(epclust:::.splitIndices(indices,179,min_size=150), "Impossible to split*")
  40 })
  41
  42 test_that("curvesToContribs output correct results",
  43 {
  44     L <- 220 #extended to 256, log2(256) == 8
  45
  46     # Zero serie
  47     expect_equal(curvesToContribs(rep(0,L), "d8", "absolute"), as.matrix(rep(0,8)))
  48     expect_equal(curvesToContribs(rep(0,L), "haar", "absolute"), as.matrix(rep(0,8)))
  49
  50     # Constant serie
  51     expect_equal(curvesToContribs(rep(5,L), "haar", "absolute"), as.matrix(rep(0,8)))
  52     expect_equal(curvesToContribs(rep(10,L), "haar", "absolute"), as.matrix(rep(0,8)))
  53 #   expect_equal(curvesToContribs(rep(5,L), "d8", ctype), rep(0,8))
  54 #TODO:
  55 })