test_that("format_difficulty works", {
out <- format_difficulty(params = list(difficulty = "novice"))
expect_identical(out, "Novice")
})
test_that("format_difficulty detects missing parameter", {
expect_error(
format_difficulty(params = list()),
"Challenge difficulty is missing"
)
})
test_that("format_difficulty detects invalid parameter value", {
expect_error(
format_difficulty(params = list(difficulty = "impossible")),
"Challenge difficulty should be one of"
)
})
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