Nothing
test_that("permute/swap", {
x <- qlone(1); y <- qlone(2); z <- qlone(3)
p <- x^4 + 2*y^3 + 3*z^2 - 4
expect_true(permuteVariables(p, c(1, 3, 2)) == swapVariables(p, 2, 3))
expect_error(permuteVariables(p, c(1, 3, 4)))
})
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