testthat (version 0.3)

shows_message: Expectation: does expression show a message?

Description

Expectation: does expression show a message?

Usage

shows_message(regexp)

Arguments

regexp

optional regular expression to match. If not specified, just asserts that expression shows some message.

Details

Needs to match at least one of the messages produced by the expression.

Examples

expect_that(message("a"), shows_message())
expect_that(message("a"), shows_message("a"))