Add test cases to Sum of Multiples
Add test cases to Sum of Multiples

gchan/xruby,jdsayle/xruby,wobh/xruby,kickinbahk/xruby,rashmiagar/exercism,NeimadTL/ruby,darrencauthon/xruby,NobbZ/xruby,mamenama/xruby,jdsayle/xruby,Insti/exercism-ruby,remcopeereboom/xruby,Insti/exercism-ruby,remcopeereboom/xruby,darrencauthon/xruby,Insti/xruby,exercism/xruby,tommyschaefer/xruby,Calvyn82/xruby,Insti/xruby,Insti/exercism-ruby,wobh/xruby,Calvyn82/word_count,NeimadTL/ruby,kotp/xruby,NobbZ/xruby,kotp/xruby,samilokan/xruby,exercism/xruby,Calvyn82/word_count,alexbrinkman/xruby,alexbrinkman/xruby,NeimadTL/ruby,rashmiagar/exercism,kickinbahk/xruby,gchan/xruby,samilokan/xruby,Calvyn82/xruby,mamenama/xruby,tommyschaefer/xruby