For advanced use only. If you are creating your own expectation, you should call expect() instead. See vignette("custom-expectation") for more details.

expectation(type, message, srcref = NULL)

is.expectation(x)

Arguments

type

Expectation type. Must be one of "success", "failure", "error", "skip", "warning".

message

Message describing test failure

srcref

Optional srcref giving location of test.

x

object to test for class membership