Add some corner cases to tests for String#index.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37792 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Add some corner cases to tests for String#index.
corner cases to tests for String#index, which might fail if ruby
directly used a buggy memmem(3) implementation.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37792 b2dd03c8-39d4-4d8f-98ff-823fe69b080e