expect_is {testthat} | R Documentation |
Tests whether or not an object inherits from any of a list of classes.
expect_is(object, class, info = NULL, label = NULL)
object |
object to test |
class |
character vector of class names |
info |
extra information to be included in the message (useful when writing tests in loops). |
label |
object label. When |
Other expectations: equivalence
,
expect_equal
,
expect_equivalent
,
expect_identical
;
expect-compare
, expect_gt
,
expect_gte
, expect_less_than
,
expect_lt
, expect_lte
,
expect_more_than
;
expect_equal_to_reference
;
expect_error
, expect_match
,
expect_message
,
expect_output
,
expect_warning
,
matching-expectations
;
expect_false
, expect_true
;
expect_named
; expect_null
;
expect_silent
;
takes_less_than
expect_is(1, "numeric") a <- matrix(1:10, nrow = 5) expect_is(a, "matrix") expect_is(mtcars, "data.frame") # alternatively for classes that have an is method expect_true(is.data.frame(mtcars))