Nothing
test_that("Error messages for valid contrast matrix work", {
expect_error(.is_valid_contrmat(matrix(c(1, 1, 1, 1, 1, 1), nrow = 3)),
regexp = "is invalid for contrasts"
)
expect_error(.is_valid_contrmat(orth_polynomial_code(5)[, -1]),
regexp = "invalid size")
})
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