subfoldr: Subfolders

context("plots")

test_that("plots", {
  rm(list = ls())
  expect_identical(ls(), character(0))

  main <- file.path(system.file(package = "subfoldr"), "output")
  sub <- file.path("first", "2nd", "third")

  load_plots(main = main, sub = sub)
  expect_identical(ls(), c("cyl_mpg", "main", "mtcars_multi", "sub"))

  expect_is(cyl_mpg, "ggplot")

  plots <- load_plot_recursive("cyl_mpg", main = main, sub = "first")
  expect_is(plots, "list")
  expect_identical(length(plots), 1L)
  expect_true(ggplot2::is.ggplot(plots[[1]]))

  plots <- load_plot_data_recursive("cyl_mpg", main = main, sub = "first")
  expect_identical(nrow(plots[[1]]), 32L)

  dir <- tempdir()
  on.exit(rm_all(ask = FALSE))
  ggplot2::qplot(data = mtcars, mpg, binwidth = 1)
  save_plot("mtcars", sub = dir, ask = FALSE)
  expect_identical(load_plot_data("mtcars", sub = dir), mtcars)

  p1 <- ggplot2::qplot(data = mtcars, mpg, binwidth = 1)
  p2 <- ggplot2::qplot(data = mtcars, mpg, binwidth = 3)
  v1 <- grid::viewport(width = 0.5, height = 0.5, x = 0, y = 1, just = c("left", "top"))
  v2 <- grid::viewport(width = 1, height = 0.5, x = 0.5, y = 0.5, just = c("left", "top"))
  save_multiplot("mtcars_multi", sub = dir, ask = FALSE, plot = list(p1, p2), vp = list(v1, v2))

  data <- load_plot("mtcars_multi", sub = sub, main = main)
  expect_identical(names(data), c("plots", "viewports"))
})