tests/testthat/test-data.frame.R

In insight: Easy Access to Model Information for Various Model Objects

test_that("find_parameters", {
  expect_error(find_parameters(iris))
})

test_that("find_formula", {
  expect_error(find_formula(iris))
})

test_that("find_statistic", {
  expect_error(find_statistic(iris))
})