test_that("correct new node with default values", {
  expect_equal(new_node(number = 1,
                        var = "<leaf>",
                        n = 30,
                        wt = 10,
                        inertia = 10000,
                        medoid = 2,
                        loc = 0.1,
                        alt = FALSE),
               tibble::tibble(number = 1,
                              var = "<leaf>",
                              n = 30,
                              wt = 10,
                              inertia = 10000,
                              bipartsplitrow = -99L,
                              bipartsplitcol = -99L,
                              inertiadel = 0,
                              inertia_explained = -99,
                              medoid = 2,
                              loc = 0.1,
                              alt = FALSE))
})

test_that("correct new node with not default values", {
  expect_equal(new_node(number = 1,
                        var = "<leaf>",
                        n = 30,
                        wt = 10,
                        bipartsplitrow = 5,
                        bipartsplitcol = 10,
                        inertia = 10000,
                        inertia_explained = 0.5,
                        medoid = 2,
                        loc = 0.5,
                        alt = FALSE),
               tibble::tibble(number = 1,
                              var = "<leaf>",
                              n = 30,
                              wt = 10,
                              inertia = 10000,
                              bipartsplitrow = 5,
                              bipartsplitcol = 10,
                              inertiadel = 0,
                              inertia_explained = 0.5,
                              medoid = 2,
                              loc = 0.5,
                              alt = FALSE))
})

test_that("incorrect new node when non default not declared", {
  expect_error(new_node(number = 1,
                        var = "<leaf>",
                        n = 30,
                        bipartsplitrow = 5,
                        bipartsplitcol = 10,
                        inertia = 10000,
                        inertia_explained = 0.5,
                        medoid = 2,
                        loc = 0.5,
                        alt = FALSE),
               "argument \"wt\" is missing, with no default")
})