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