assert: Explicitly state that we expect no errors to occur.

In robertzk/testthatsomemore: A mocking, stubbing, and file testing framework extending testthat

Description

Note we could simply write the expression itself and let it error, but using assert makes the intention of the code clearer (like using base::force).

Usage

assert(expr, ...)

Arguments

expr	expression. This expression should not error.
...	additional arguments to expect_false, like info.

Details

For testing the converse, there already is expect_error.

Examples

assert(1 + 1) # This will throw no error.
# stopifnot(is(tryCatch(error = identity, assert(not_existent)), 'error'))
# The above will produce an error. In unit tests, it will be clear this
# means "We expect no error to occur."

robertzk/testthatsomemore documentation built on May 27, 2019, 11:38 a.m.