context("circlearea")
test_that("circlearea processes numeric values correctly", {
expect_equal(circlearea(1), pi)
expect_equal(circlearea(c(1,2)), c(pi, pi*4))
})
test_that("circlearea errors with non-numeric data", {
expect_error(circlearea("A"))
expect_error(Circlearea(as.facotr("A")))
})
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