Nothing
context("pad0")
test_that("multiplication works", {
expect_equal(pad0("apa", 10), "0000000apa")
expect_equal(pad0(c("apa", "bepa"), 10), c("0000000apa", "000000bepa"))
expect_equal(pad0(c("apa", "bepa"), c(10, 20)),
c("0000000apa", "0000000000000000bepa"))
})
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