An old style of testing that's no longer encouraged.

expect_that(object, condition, info = NULL, label = NULL)

Arguments

object object to test a function that returns whether or not the condition is met, and if not, an error message to display. extra information to be included in the message (useful when writing tests in loops). object label. When NULL, computed from deparsed object.

Value

the (internal) expectation result as an invisible list

fail() for an expectation that always fails.
expect_that(5 * 2, equals(10))
# }