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context("pull var")
test_that("errors for bad inputs", {
expect_error(
vars_pull(letters, letters),
class = "vctrs_error_subscript_type"
)
# FIXME
expect_error(
vars_pull(letters, aa),
"object 'aa' not found",
fixed = TRUE
)
expect_error(
vars_pull(letters, "foo"),
class = "vctrs_error_subscript_oob"
)
expect_error(
vars_pull(letters, 0),
class = "vctrs_error_subscript_type"
)
expect_error(
vars_pull(letters, 100),
class = "vctrs_error_subscript_oob"
)
expect_error(
vars_pull(letters, -100),
class = "vctrs_error_subscript_oob"
)
expect_error(
vars_pull(letters, -Inf),
class = "vctrs_error_subscript_type"
)
expect_error(
vars_pull(letters, TRUE),
class = "vctrs_error_subscript_type"
)
expect_error(
vars_pull(letters, NA),
class = "vctrs_error_subscript_type"
)
expect_error(
vars_pull(letters, na_int),
class = "vctrs_error_subscript_type"
)
expect_error(
vars_pull(letters, !!c("a", "b")),
class = "vctrs_error_subscript_type"
)
verify_output(test_path("outputs", "vars-pull-input-checking.txt"), {
vars_pull(letters, letters)
vars_pull(letters, aa)
vars_pull(letters, 0)
vars_pull(letters, 100)
vars_pull(letters, -100)
vars_pull(letters, -Inf)
vars_pull(letters, TRUE)
vars_pull(letters, NA)
vars_pull(letters, na_int)
vars_pull(letters, "foo")
vars_pull(letters, !!c("a", "b"))
})
})
test_that("can pull variables with missing elements", {
expect_identical(vars_pull(c("a", ""), a), "a")
expect_identical(vars_pull(c("a", NA), a), "a")
})
test_that("missing values are detected in vars_pull() (#72)", {
lapply(list(NA_character_, NA_integer_, NA_real_, NA, NA_complex_), function(x) {
expect_error(vars_pull(c("a", "b"), !!x), class = "vctrs_error_subscript_type")
})
})
test_that("can pull with strings", {
expect_identical(vars_pull(letters, "b"), vars_pull(letters, b))
expect_error(vars_pull(letters, "foo"), class = "vctrs_error_subscript_oob")
})
test_that("can pull with negative values", {
expect_identical(vars_pull(letters, -1), "z")
expect_identical(vars_pull(letters, -3), "x")
})
test_that("vars_pull() instruments base errors", {
verify_errors({
expect_error(vars_pull(letters, foobar), "")
})
})
test_that("vars_pull() has informative errors", {
verify_output(test_path("error", "test-vars-pull.txt"), {
"# vars_pull() instruments base errors"
vars_pull(letters, foobar)
})
})
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