How to test Thinking Sphinx delta indexes using rspec

Question

I have used Thinking sphinx in my project and have test cases using Rspec for my search functionalities using setup similar to here

I have also used extensive Delta indexing in my project. How can I test my delta indexed results using rspec here.

Answer 1

Issue was due to https://github.com/pat/thinking-sphinx/issues/148 (delta indexing is by default disabled in rspec test cases)

I had to set the following flags true to run the test cases:

ThinkingSphinx.deltas_enabled  = true
ThinkingSphinx.updates_enabled = true