skip_if_not_installed(vdiffr) in ppc-censoring tests

Author: jgabry

R/bayesplot-ggplot-themes.R

@@ -129,6 +129,9 @@ theme_default <-
 #' bayesplot_theme_set(theme_dark())
 #' mcmc_hist(x) + panel_bg(fill = "black")
 #'
+#' # reset
+#' bayesplot_theme_set()
+#'
 bayesplot_theme_get <- function() {
   if (!identical(.bayesplot_theme_env$gg_current, ggplot2::theme_get())) {
     .bayesplot_theme_env$current <- ggplot2::theme_get()

tests/testthat/test-ppc-censoring.R

@@ -47,6 +47,7 @@ test_that("ppc_km_overlay renders correctly", {
 
 test_that("ppc_km_overlay_grouped renders correctly", {
   testthat::skip_on_cran()
+  testthat::skip_if_not_installed("vdiffr")
   skip_if_not_installed("ggfortify")
 
   p_base <- ppc_km_overlay_grouped(vdiff_y2, vdiff_yrep2, vdiff_group2,