Prospective Search - refactor how servlet state is used for confirming tests.

[terryok]

Same issue as before, a different instance of a servlet may get called, so we should use memcache or datastore to store test result info. MatchTests are failing with error, Servlet Not Invoked.

[alesj]

I guess you didn't yet add a generic way to store temp info?
But np, I'll do it as soon as I find some time.

[terryok]

I'm thinking a simple key/value pair in memcache. The key would usually be something like "testname-timestamp". I like it better than using datastore since you don't need to worry about cleaning up.

[alesj]

How is it with duration of items in the cache?
I thought cache items can go out unexpectedly?

[terryok]

They can, but since the test itself is usually only 60 sec it would be a rare problem.

Although, now that you mention it, I wonder if there could be consistency issues. With datastore we can specify ancestor queries for consistency.

If the framework cleans up after itself, and every test has a unique key, so tests don't see old data that didn't get cleaned up for some reason, I think that would make the tests stable.