tests/testthat/test-toJSON-factor.R

In jsonlite: A Simple and Robust JSON Parser and Generator for R

test_that("Encoding Factor Objects", {
  expect_identical(fromJSON(toJSON(iris$Species)), as.character(iris$Species));
  expect_identical(fromJSON(toJSON(iris$Species[1])), as.character(iris$Species[1]));
  expect_equal(fromJSON(toJSON(iris$Species, factor="integer")), structure(unclass(iris$Species), levels=NULL));
});