inst/tests/test-specialchars.R

In BayesFactor: Computation of Bayes Factors for Common Designs

context('special chars')

e <- function(x) composeTerm(paste0(x, ' :`"\''))
p <- paste0

data('ToothGrowth')
ToothGrowth$dose <- as.factor(ToothGrowth$dose)
colnames(ToothGrowth) <- paste0(colnames(ToothGrowth), ' :`"\'')

test_that('ttestBF accepts column names with special chars', {
  formula <- p(e('len'), '~', e('supp'))
  formula <- as.formula(formula)
  results <- ttestBF(formula=formula, data=ToothGrowth)
  expect_that(results, is_a("BFBayesFactor"))
  expect_that(length(results), is_equivalent_to(1))
})

test_that('anovaBF accepts column names with special chars', {
  formula <- p(e('len'), '~', e('supp'))
  formula <- as.formula(formula)
  results <- anovaBF(formula=formula, data=ToothGrowth)
  expect_that(results, is_a("BFBayesFactor"))
  expect_that(length(results), is_equivalent_to(1))

  formula <- p(e('len'), '~', e('supp'), '*', e('dose'))
  formula <- as.formula(formula)
  results <- anovaBF(formula=formula, data=ToothGrowth)
  expect_that(results, is_a("BFBayesFactor"))
  expect_that(length(results), is_equivalent_to(4))
})

test_that('generalTestBF accepts column names with special chars', {
  data(puzzles)
  names(puzzles) <- paste0(colnames(puzzles), ' :`"\'')
  formula <- p(e('RT'), '~', e('shape'), '*', e('color'), '*', e('ID'))
  formula <- as.formula(formula)
  bf <- generalTestBF(formula, whichRandom=e('ID'), data = puzzles)
  expect_that(bf, is_a("BFBayesFactor"))
  expect_that(length(bf), is_equivalent_to(18))
})

test_that("regressionBF accepts column names with special chars", {
  set.seed(0)
  x <- rnorm(100)
  a <- rnorm(100)
  y <- x + a + rnorm(100)
  data <- data.frame(y, x, a)
  colnames(data) <- paste0(colnames(data), ' :`"\'')
  formula <- as.formula(p(e('y'), '~', e('x'), '+', e('a')))
  bf <- regressionBF(formula, data)
  expect_that(bf, is_a("BFBayesFactor"))
  expect_that(length(bf), is_equivalent_to(3))
})