expect_length: Does code return a vector with the specified length?

In testthat: Unit Testing for R

Does code return a vector with the specified length?

Description

Does code return a vector with the specified length?

Usage

expect_length(object, n)

Arguments

object	Object to test. Supports limited unquoting to make it easier to generate readable failures within a function or for loop. See quasi_label for more details.
n	Expected length.

See Also

expect_vector() to make assertions about the "size" of a vector

Other expectations: comparison-expectations, equality-expectations, expect_error(), expect_match(), expect_named(), expect_null(), expect_output(), expect_reference(), expect_silent(), inheritance-expectations, logical-expectations

Examples

expect_length(1, 1)
expect_length(1:10, 10)

## Not run: 
expect_length(1:10, 1)

## End(Not run)

testthat documentation built on April 4, 2025, 1:08 a.m.