Require usage of expect_length(x, n) over expect_equal(length(x), n)

testthat::expect_length() exists specifically for testing the length() of an object. testthat::expect_equal() can also be used for such tests, but it is better to use the tailored function instead.

Usage

expect_length_linter()

See also

linters for a complete list of linters available in lintr.

Tags

best_practices, package_development, readability