segmentio/analytics.js-integration-tester — pull request #21 by ianstormtaylor (2014-07-01 19:24:25+00:00)
Title: fix assert and loading messages

cc @lancejpollard

Adding the more useful messages to the loading ones.

And then making `assert` directly assigned since that's the only way to let it default to its more useful messages, instead of just always saying `Error: value`. The downside here is it's no longer chainable, but we decided to stop chaining so that breakpointing is easier anyways, so I think we're good?