Tidy up checkout spec

spec/features/consumer/shopping/checkout_auth_spec.rb

@@ -23,42 +23,42 @@ feature "As a consumer I want to check out my cart", js: true do
       add_product_to_cart order, product
     end
 
-    it "does not not render the login form when logged in" do
+    it "does not render the login form when logged in" do
       quick_login_as user
       visit checkout_path
       within "section[role='main']" do
-        page.should_not have_content "Login"
-        page.should have_checkout_details
+        expect(page).to_not have_content "Login"
+        expect(page).to have_checkout_details
       end
     end
 
     it "renders the login buttons when logged out" do
       visit checkout_path
       within "section[role='main']" do
-        page.should have_content "Login"
+        expect(page).to have_content "Login"
         click_button "Login"
       end
-      page.should have_login_modal
+      expect(page).to have_login_modal
     end
 
     it "populates user details once logged in" do
       visit checkout_path
       within("section[role='main']") { click_button "Login" }
-      page.should have_login_modal
+      expect(page).to have_login_modal
       fill_in "Email", with: user.email
       fill_in "Password", with: user.password
       within(".login-modal") { click_button 'Login' }
       toggle_details
 
-      page.should have_field 'First Name', with: 'Foo'
-      page.should have_field 'Last Name', with: 'Bar'
+      expect(page).to have_field 'First Name', with: 'Foo'
+      expect(page).to have_field 'Last Name', with: 'Bar'
     end
 
     context "using the guest checkout" do
       it "allows user to checkout as guest" do
         visit checkout_path
         checkout_as_guest
-        page.should have_checkout_details
+        expect(page).to have_checkout_details
       end
 
       it "asks the user to log in if they are using a registered email" do