test_that("pdims", {
  expect_identical(pdims(mcmcr_example2), list(alpha = c(2L, 1L, 1L), beta = c(2L, 2L, 2L), sigma = c(1L, 1L, 1L)))
  expect_identical(pdims(mcmcr_example), list(alpha = 2L, beta = c(2L, 2L), sigma = 1L))
  expect_identical(pdims(mcmcr_example[[1]]), 2L)
  expect_identical(pdims(mcmcr_example2[[1]]), c(2L, 1L, 1L))
  expect_identical(pdims(as_term(as.mcmc.list(mcmcr_example[[1]])[[1]])), list(parameter = 2L))
  expect_identical(pdims(as.mcmc.list(mcmcr_example[[1]])[[1]]), list(parameter = 2L))
  expect_identical(pdims(as.mcmc.list(mcmcr_example[[1]])), list(parameter = 2L))
})