spec/integration/sum_spec.rb in danica-2.0.6 vs spec/integration/sum_spec.rb in danica-2.1.0

@@ -1,21 +1,27 @@
 require 'spec_helper'
 
 describe 'integration of sum' do
-  describe 'with negative numbers' do
+  describe 'with negative and positivenegative (+/-) numbers' do
     subject do
-      Danica::Sum.new(Danica::Negative.new(1), 2, Danica::Negative.new(3), 4)
+      Danica::Sum.new(
+        Danica::Negative.new(1),
+        2,
+        Danica::Negative.new(3),
+        4,
+        Danica::PositiveNegative.new(5)
+      )
     end
 
     describe '#to_gnu' do
       it 'returns the correct string' do
-        expect(subject.to_gnu).to eq('-1 + 2 -3 + 4')
+        expect(subject.to_gnu).to eq('-1 + 2 -3 + 4 + 5')
       end
     end
 
     describe '#to_tex' do
       it 'returns the correct string' do
-        expect(subject.to_tex).to eq('-1 + 2 -3 + 4')
+        expect(subject.to_tex).to eq('-1 + 2 -3 + 4 \pm 5')
       end
     end
   end
 end