spec/dydx_spec.rb in dydx-0.0.9 vs spec/dydx_spec.rb in dydx-0.1.0

@@ -28,20 +28,12 @@
     it{ expect(d1.to_s).to eq('t') }
     it{ expect(d2.to_s).to eq('t') }
   end
 
   context 'ex4' do
-    $f = 2 * (e ^ (2 * :z))
-    let(:d1){ df/dz }
-    let(:d2){ d/dz($f) }
-    it{ expect(d1.to_s).to eq('( 4 * ( e ^ ( 2 * z ) ) )') }
-    it{ expect(d2.to_s).to eq('( 4 * ( e ^ ( 2 * z ) ) )') }
-  end
-
-  context 'ex5' do
-    $f = 2 * (e ^ (2 * z))
-    let(:d1){ df/dz }
-    let(:d2){ d/dz($f) }
+    $i = 2 * (e ^ (2 * :z))
+    let(:d1){ di/dz }
+    let(:d2){ d/dz($i) }
     it{ expect(d1.to_s).to eq('( 4 * ( e ^ ( 2 * z ) ) )') }
     it{ expect(d2.to_s).to eq('( 4 * ( e ^ ( 2 * z ) ) )') }
   end
 end