rspec/rspec-mocks — pull request #405 by xaviershay (2013-08-13 03:08:13+00:00)
Title: Benchmark of transfer_nested_constants option.

Shows a non-trivial performance impact, though low absolute time for the common case.

I'm inclined to leave the default value as false, reconsidering if it happens to cause a lot of user confusion.

WDYT @myronmarston?

Resolves #395.