context("funs")
test_that("fun_list is merged with new args", {
funs <- funs(fn = bar)
funs <- as_fun_list(funs, quo(bar), env(), baz = "baz")
expect_identical(funs$fn, quo(bar(., baz = "baz")))
})
test_that("funs() works with namespaced calls", {
expect_identical(summarise_all(mtcars, funs(base::mean(.))), summarise_all(mtcars, funs(mean(.))))
expect_identical(summarise_all(mtcars, funs(base::mean)), summarise_all(mtcars, funs(mean(.))))
})
test_that("funs() accepts quoted functions", {
expect_identical(funs(mean), funs("mean"))
})
test_that("funs() accepts unquoted functions", {
funs <- funs(fn = !! mean)
expect_identical(funs$fn, new_quosure(new_language(base::mean, quote(.))))
})
test_that("funs() accepts quoted calls", {
expect_identical(funs(mean), funs(mean(.)))
})
test_that("funs() can be merged with new arguments", {
fns <- funs(foo(.))
expect_identical(as_fun_list(fns, ~NULL, get_env(), foo = 1L), funs(foo(., foo = 1L)))
})
enfun <- function(.funs, ...) {
as_fun_list(.funs, enquo(.funs), caller_env(), ...)
}
test_that("can enfun() literal functions", {
expect_identical(enfun(identity(mean)), funs(!! mean))
})
test_that("can enfun() named functions by expression", {
expect_identical(enfun(mean), funs(mean(.)))
})
test_that("local objects are not treated as symbols", {
mean <- funs(my_mean(.))
expect_identical(enfun(mean), mean)
})
test_that("can enfun() character vectors", {
expect_identical(enfun(c("min", "max")), funs(min, max))
})
test_that("can enfun() quosures", {
expect_identical(enfun(quo(mean(.))), funs(mean(.)))
})
test_that("can enfun() purrr-style lambdas", {
my_mean <- as_function(~mean(.x))
expect_identical(enfun(~mean(.x)), funs(!! my_mean))
})
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