Nothing
test_that("getCovariates", {
dat <- data.frame(
x = 1:3,
f = c("a", "a", "b"),
g = c("x", "y", "y")
)
#
cvrts <- getCovariates(dat, ~ 1)
expect_length(cvrts$continuous, 0L)
expect_length(cvrts$categorical, 0L)
#
cvrts <- getCovariates(dat, ~ x)
expect_identical(cvrts$continuous, "x")
expect_identical(unname(cvrts$categorical), list())
#
cvrts <- getCovariates(dat, ~ f)
expect_identical(cvrts$continuous, character(0L))
expect_identical(cvrts$categorical, list(f = c("a", "b")))
#
cvrts <- getCovariates(dat, ~ x*f)
expect_identical(cvrts$continuous, "x")
expect_identical(cvrts$categorical, list(f = c("a", "b")))
#
cvrts <- getCovariates(dat, ~ 0)
expect_identical(cvrts$continuous, character(0L))
expect_identical(unname(cvrts$categorical), list())
#
cvrts <- getCovariates(dat, ~ f*g)
expect_identical(cvrts$continuous, character(0L))
expect_identical(cvrts$categorical, list(f = c("a", "b"), g = c("x", "y")))
#
cvrts <- getCovariates(dat, ~ f*x)
expect_identical(cvrts$continuous, "x")
expect_identical(cvrts$categorical, list(f = c("a", "b")))
})
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