checkmate (version 2.0.0)

checkMultiClass: Check the class membership of an argument

Description

Check the class membership of an argument

Usage

checkMultiClass(x, classes, null.ok = FALSE)
check_multi_class(x, classes, null.ok = FALSE)
assertMultiClass(x, classes, null.ok = FALSE, .var.name = vname(x), add = NULL)
assert_multi_class(
  x,
  classes,
  null.ok = FALSE,
  .var.name = vname(x),
  add = NULL
)
testMultiClass(x, classes, null.ok = FALSE)
test_multi_class(x, classes, null.ok = FALSE)
expect_multi_class(x, classes, null.ok = FALSE, info = NULL, label = vname(x))

Arguments

x

[any] Object to check.

classes

[character] Class names to check for inheritance with inherits. x must inherit from any of the specified classes.

null.ok

[logical(1)] If set to TRUE, x may also be NULL. In this case only a type check of x is performed, all additional checks are disabled.

.var.name

[character(1)] Name of the checked object to print in assertions. Defaults to the heuristic implemented in vname.

add

[AssertCollection] Collection to store assertion messages. See AssertCollection.

info

[character(1)] Extra information to be included in the message for the testthat reporter. See expect_that.

label

[character(1)] Name of the checked object to print in messages. Defaults to the heuristic implemented in vname.

Value

Depending on the function prefix: If the check is successful, the functions assertMultiClass/assert_multi_class return x invisibly, whereas checkMultiClass/check_multi_class and testMultiClass/test_multi_class return TRUE. If the check is not successful, assertMultiClass/assert_multi_class throws an error message, testMultiClass/test_multi_class returns FALSE, and checkMultiClass returns a string with the error message. The function expect_multi_class always returns an expectation.

See Also

Other attributes: checkClass(), checkNamed(), checkNames()

Other classes: checkClass(), checkR6()

Examples

# NOT RUN {
x = 1
class(x) = "bar"
checkMultiClass(x, c("foo", "bar"))
checkMultiClass(x, c("foo", "foobar"))
# }