Don't wait for element in inspect

lib/capybara/node/element.rb

@@ -371,9 +371,9 @@ module Capybara
       end
 
       def inspect
-        %(#<Capybara::Node::Element tag="#{tag_name}" path="#{path}">)
+        %(#<Capybara::Node::Element tag="#{base.tag_name}" path="#{base.path}">)
       rescue NotSupportedByDriverError
-        %(#<Capybara::Node::Element tag="#{tag_name}">)
+        %(#<Capybara::Node::Element tag="#{base.tag_name}">)
       rescue => e
         if session.driver.invalid_element_errors.any? { |et| e.is_a?(et)}
           %(Obsolete #<Capybara::Node::Element>)

spec/shared_selenium_session.rb

@@ -161,7 +161,8 @@ RSpec.shared_examples "Capybara::Session" do |session, mode|
       it "outputs obsolete elements" do
         @session.visit('/form')
         el = @session.find(:button, 'Click me!').click
-        sleep 2
+        expect(@session).to have_no_button('Click me!')
+        expect(el).not_to receive(:synchronize)
         expect(el.inspect).to eq "Obsolete #<Capybara::Node::Element>"
       end
     end