spec/lib/codice_fiscale/codes_spec.rb in codice-fiscale-0.0.9 vs spec/lib/codice_fiscale/codes_spec.rb in codice-fiscale-1.0.0

@@ -2,22 +2,26 @@
 
 describe CodiceFiscale::Codes do
   describe '#month_letter' do
     context 'the given number is greater than 0 and less than 12' do
       it 'return a letter' do
-        subject.month_letter(1).should == 'A'
+        1.upto(12).each do |n|
+          expect(subject.month_letter(1)).to match /^[A-Z]{1,}$/
+        end
       end
     end
 
     context 'the given number is greater than 12' do
       it 'return nil' do
-        subject.month_letter(13).should be_nil
+        expect(subject.month_letter(13)).to be_nil
       end
     end
 
     context 'the given number is less than 1' do
       it 'return nil' do
-        subject.month_letter(0).should be_nil
+        -1.upto(0).each do |n|
+          expect(subject.month_letter(n)).to be_nil
+        end
       end
     end
   end
 end
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