In rspec: Can I attach a message to a check the same way as I would do in xUnit style test frameworks? How?
assert_equal value1, value2, \"something is wrong\" <
should and should_not take a second argument (message) that overrides the matcher’s default message.
message
1.should be(2), 'one is not two!'
The default messages are usually pretty useful though.
update:
for RSpec 3:
expect(1).to eq(2), "one is not two!"