logical-expectations {testthat} | R Documentation |
These are fall-back expectations that you can use when none of the other more specific expectations apply. The disadvantage is that you may get a less informative error message.
expect_true(object, info = NULL, label = NULL) expect_false(object, info = NULL, label = NULL)
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. |
info |
Extra information to be included in the message. This argument is soft-deprecated and should not be used in new code. Instead see alternatives in quasi_label. |
label |
Used to customise failure messages. For expert use only. |
Attributes are ignored.
is_false()
for complement
Other expectations: comparison-expectations
,
equality-expectations
,
expect_error
, expect_length
,
expect_match
, expect_message
,
expect_named
, expect_null
,
expect_output
, expect_silent
,
inheritance-expectations
expect_true(2 == 2) # Failed expectations will throw an error ## Not run: expect_true(2 != 2) ## End(Not run) expect_true(!(2 != 2)) # or better: expect_false(2 != 2) a <- 1:3 expect_true(length(a) == 3) # but better to use more specific expectation, if available expect_equal(length(a), 3)