Verify Log Messages written by Play!'s Logger class

When writing tests, is it possible to verify messages that have been written by Play!'s logg开发者_StackOverflow中文版er class?

So for example, if the production code below is executed:

Logger.error("boo boo");

In my test, am I able to verify that the message boo boo was written as an error to the logs?

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The best way is to write your own log appender, which puts all data into a List. Then you can analyse the List at end of the test. Perhaps you can download such a logger from some sites. Another possibility is to use easymock to mock the appender, but I think this is more difficult, because you can't produce easily the expected LogEvent.