Add missing description to some examples

core/spec/models/spree/concerns/user_address_book_spec.rb

@@ -239,22 +239,20 @@ module Spree
           expect(subject).to eq address
         end
 
-        context "sets it as default" do
-          context "shipping address" do
-            it do
-              subject
-              expect(user.ship_address).to eq address
-              expect(user.default_address).to eq address
-            end
+        context "when called with default address_type" do
+          it "sets the passed address as default shipping address" do
+            subject
+            expect(user.ship_address).to eq address
+            expect(user.default_address).to eq address
           end
+        end
 
-          context "billing address" do
-            subject { user.save_in_address_book(address.attributes, true, :billing) }
+        context "when called with address_type = :billing" do
+          subject { user.save_in_address_book(address.attributes, true, :billing) }
 
-            it do
-              subject
-              expect(user.bill_address).to eq address
-            end
+          it "sets the passed address as default billing address" do
+            subject
+            expect(user.bill_address).to eq address
           end
         end
 
@@ -567,7 +565,7 @@ module Spree
         allow(Spree::Address).to receive(:immutable_merge).and_return address
       end
 
-      it do
+      it "updates ship_address with its present attributes merged with the passed ones" do
         expect(Spree::Address).to receive(:immutable_merge).with(user.ship_address, attributes)
         expect(user).to receive(:ship_address=).with address