Nothing
library(evaluate)
test_that("replay() should work when print() returns visible NULLs", {
old <- options(prompt = "> ")
on.exit(options(old), add = TRUE)
# need to put S3 method in global namespace otherwise it isn't found
assign("print.FOO_BAR", function(x, ...) NULL, envir = globalenv())
on.exit(rm(print.FOO_BAR, envir = globalenv()), add = TRUE)
ret <- evaluate('structure(1, class = "FOO_BAR")')
expect_snapshot(replay(ret))
})
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