[CASSANDRA-13238] Add actual row output to assertEmpty error message

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 3.0.13, 3.11.0, 4.0-alpha1, 4.0
• Labels: test
• Assignee: Alex Petrov
• Reporter: Alex Petrov

Authors

Alex Petrov

• Created: 17/Feb/17 21:01
• Updated: 15/May/20 08:02
• Resolved: 08/Mar/17 17:24

Description

We have several issues popping up every now and then that are hard to debug and the test failure messages aren't entirely helpful, for example:

java.lang.AssertionError: Expected empty result but got 1 rows:

It could be much better if we could have an actual output (what exactly the row that got returned appended to it:

java.lang.AssertionError: Expected empty result but got 1 rows: [row(value=null)]

The nice side-effect of this change is that now we will have a helper method that can nicely turn an UntypedResultSet into String (I apologise if I did overlooked one).