checkmate (version 1.7.3)

checkChoice: Check if an object is an element of a given set

Description

Check if an object is an element of a given set

Usage

checkChoice(x, choices)
assertChoice(x, choices, add = NULL, .var.name = NULL)
assert_choice(x, choices, add = NULL, .var.name = NULL)
testChoice(x, choices)
test_choice(x, choices)
expect_choice(x, choices, info = NULL, label = NULL)

Arguments

x

[any] Object to check.

choices

[atomic] Set of possible values.

add

[AssertCollection] Collection to store assertions. See AssertCollection.

.var.name

[NULL || character(1)] Name of the checked object to print in error message. If NULL, the name will be heuristically determined via substitute.

info

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

label

[character(1)] Same as .var.name, but passed down to expect_that.

Value

• Depending on the function prefix: If the check is successful, the functions return TRUE. If the check is not successful, assertChoice/assert_choice throws an error message, testChoice/test_choice returns FALSE, and checkChoice returns a string with the error message. The function expect_choice always returns an expectation.

See Also

Other set: checkSetEqual, checkSubset

Examples

testChoice("x", letters)