spec/string-pad_spec.rb in string-pad-0.0.1 vs spec/string-pad_spec.rb in string-pad-0.0.2

@@ -5,13 +5,17 @@
   subject do
     'aaa あいうえお zzz'
   end
 
   it 'should pad' do
+    regexp_str = String::ZERO_WIDTH_CHARS.map do |c|
+      [c].pack('U')
+    end.join('')
+
     size(subject.pad(30)).should eql(30)
 
     # http://www.metareal.org/2007/11/18/ruby-needs-unicode-regular-expressions/
-    size(subject.pad(30).gsub(/#{"[#{[0x200b].pack('U')}#{[0x200c].pack('U')}]"}/u, '')).should eql(13)
+    size(subject.pad(30).gsub(/#{"[#{regexp_str}]"}/u, '')).should eql(13)
   end
 
   it 'should not pad if original size is longer than padding size' do
     size(subject.pad(10)).should eql(13)
   end