Update test case ordering
Update test case ordering

Reference exercism/problem-specifications#830

Insti/exercism-ruby,NeimadTL/ruby,Insti/exercism-ruby,exercism/xruby,Insti/exercism-ruby,NeimadTL/ruby,Insti/xruby,exercism/xruby,NeimadTL/ruby,Insti/xruby