behave/behave — pull request #274 by AbstractBeliefs (2014-12-10 13:51:59+00:00)
Title: Add a a helpful assert message for generated steps.

Reduce traceback verbosity for unimplemented tests, as well as explain why the test failed.
"Competes" with #254 .

Running tests shows 2 failures unrelated to this change.
```
Failing scenarios:
features/formatter.json.feature:311 Use JSON formatter with feature and one scenario with steps
features/scenario_outline.improved.feature:113 Select all generated scenarios of a Scenario Outline by File Location
```
both marked xfail.