Does code return TRUE or FALSE?
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_named(),
expect_null(),
expect_output(),
expect_reference(),
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)
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