tests/testthat/test-is_s3.R

test_that("works with internal and regular generics", {
  expect_true(is_s3_generic("sum"))
  expect_true(is_s3_generic("[["))
  expect_true(is_s3_generic("mean"))
})
r-lib/sloop documentation built on Nov. 4, 2023, 4:20 a.m.