context("Legacy functions have been properly deprecated")
test_that("Test whether legacy functions have been deprecated", {
expected_class <- ifelse(getRversion() >= "3.6", "defunctError", "simpleError")
expect_condition(principal.curve(), "is defunct", class = expected_class)
expect_condition(lines.principal.curve(), "is defunct", class = expected_class)
expect_condition(plot.principal.curve(), "is defunct", class = expected_class)
expect_condition(points.principal.curve(), "is defunct", class = expected_class)
expect_condition(get.lam(), "is defunct", class = expected_class)
})
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