Nothing
test_that("TableFooter() returns shiny.tag, correct name and value", {
expect_equal(class(TableFooter()), "shiny.tag")
expect_equal(environment(TableFooter()[["children"]][[2]])[["data"]][["name"]], "TableFooter")
expect_equal(environment(TableFooter("Test")[["children"]][[2]])[["data"]][["props"]][["value"]][["children"]], "Test")
})
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