tests/testthat/test.tidy_format_translators.R

In ggdist: Visualizations of Distributions and Uncertainty

# Tests for tidy format translators
#
# Author: mjskay
###############################################################################

library(dplyr)




test_that("ggmcmc translators work", {
  data("RankCorr_u_tau", package = "ggdist")

  orig = RankCorr_u_tau %>%
    dplyr::rename(.variable = i, .value = u_tau) %>%
    group_by(.variable)

  result = orig %>%
    to_ggmcmc_names()

  expect_equal(names(result), c("Parameter", "value", "Chain", "Iteration", ".draw"))
  expect_equal(group_vars(result), "Parameter")
  expect_equal(from_ggmcmc_names(result), orig)
})

test_that("broom translators work", {
  data("RankCorr_u_tau", package = "ggdist")

  orig = RankCorr_u_tau %>%
    dplyr::rename(.variable = i, .value = u_tau) %>%
    group_by(.variable) %>%
    median_qi(.value)

  result = orig %>%
    to_broom_names()

  expect_equal(names(result), c("term", "estimate", "conf.low", "conf.high", ".width", ".point", ".interval"))
  expect_equal(from_broom_names(result), orig)
})