tests/testthat/test-libjson-large.R

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

test_that("escaping and parsing of special characters", {
  #create random strings
  mychars <- c('a', 'b', " ", '"', "\\", "\t", "\n", "'", "/", "#", "$")
  createstring <- function(length) {
    paste(mychars[ceiling(runif(length, 0, length(mychars)))], collapse = "")
  }

  #try some very long strings
  for (i in 1:10) {
    zz <- list(foo = createstring(1e5))
    expect_equal(zz, fromJSON(toJSON(zz)))
  }
})