tests/testthat/test-coord_geo_polar.R

In deeptime: Plotting Tools for Anyone Working in Deep Time

skip_if_not_installed("ggtree")
test_that("coord_geo_polar works", {
  skip_if_not_installed("ape")
  gg <- revts(ggtree(tree)) +
    coord_geo_polar(dat = "stages") +
    scale_x_continuous(limits = c(NA, 0))
  expect_true(is.ggplot(gg))
  expect_true(is(ggplot_build(gg)$layout$coord, "CoordGeoPolar"))
  expect_doppelganger_deeptime("coord_geo_polar", gg)
  skip_if_not_installed("phytools")
  expect_equal(ggplot_build(gg)$layout$panel_params[[1]]$r.range,
               c(-max(nodeHeights(tree)), 0))
})

test_that("stacking scales works", {
  skip_if_not_installed("phytools")
  gg <- revts(ggtree(mammal.tree)) +
    coord_geo_polar(
      dat = list("stages", "periods"), alpha = .5,
      prop = list(0.75, .25), start = pi / 4, lty = "dashed"
    ) +
    scale_y_continuous(expand = expansion(mult = c(0.02, 0.02))) +
    theme(axis.text.r = element_text(size = 3.5, hjust = .25, vjust = .75))
  expect_doppelganger_deeptime("stacked scales", gg)
})

test_that("ggtree scale works with only fossil taxa", {
  skip_if_not_installed("paleotree")
  gg <- ggtree(ceratopsianTreeRaia,
               position = position_nudge(x = -ceratopsianTreeRaia$root.time)) +
    coord_geo_polar(dat = "stages")
  expect_doppelganger_deeptime("scale on fossil ggtree", gg)
})