tests/testthat/test-utils-formula.R

test_that("expand_formula returns a string", {
  expect_true(
    class(expand_formula(~a:b + d, a=c('a1','a2'), b=c('b1','b2'), d='d1'))=="character"
  )
})
audreyrenson/paralleltrends documentation built on May 4, 2022, 2:53 a.m.