Unify I18n.locale test (#37)

Author: Bilka2

spec/after_commit_everywhere_spec.rb

@@ -120,7 +120,7 @@
         end
         expect(handler).to have_received(:call).with(:de)
       ensure
-        I18n.enforce_available_locales = true
+        I18n.enforce_available_locales = old_enforce_available_locales
       end
     end
 
@@ -307,6 +307,7 @@
       end
 
       it "preserves the locale" do
+        old_enforce_available_locales = I18n.enforce_available_locales
         I18n.enforce_available_locales = false
 
         ActiveRecord::Base.transaction do
@@ -315,8 +316,8 @@
           expect(handler).not_to have_received(:call)
         end
         expect(handler).to have_received(:call).with(:de)
-
-        I18n.enforce_available_locales = true
+      ensure
+        I18n.enforce_available_locales = old_enforce_available_locales
       end
     end