test_that("Checkbox() returns shiny.tag, correct name and value", {
  expect_equal(class(Checkbox()), "shiny.tag")
  expect_equal(environment(Checkbox()[["children"]][[2]])[["data"]][["name"]], "Checkbox")
  expect_equal(environment(Checkbox("Test")[["children"]][[2]])[["data"]][["props"]][["value"]][["children"]], "Test")
})