testthat (version 0.6)

is_false: Expectation: is the object false?

Description

A useful fall-back expectation like is_true

Usage

is_false()
  expect_false(object, info = NULL, label = NULL)

Arguments

object

object to test

info

extra information to be included in the message (useful when writing tests in loops).

label

object label. When NULL, computed from deparsed object.

See Also

Other expectations: equals, expect_equal, expect_equivalent, expect_error, expect_identical, expect_is, expect_match, expect_message, expect_output, expect_true, expect_warning, gives_warning, is_a, is_equivalent_to, is_identical_to, is_true, matches, prints_text, shows_message, takes_less_than, throws_error

Examples

expect_that(3 == 2, is_false())
expect_false(3 == 2)

a <- 1:3
expect_that(length(a) == 4, is_false())