おきなくなった

backend/spec/system/scenarios/login_flow_spec.rb

@@ -13,42 +13,60 @@
     fill_in "email", with: user.email_address
     fill_in "password", with: user.password
     click_button "Login"
-    puts __LINE__
 
     puts page.text
     Timeout.timeout(10) do
       until page.send(:has_content?, user.email_address)
         sleep 0.01
       end
-    rescue Selenium::WebDriver::Error::UnknownError
-      puts '------'
-      puts :baaad1
-      puts __LINE__
-      puts '------'
+    #rescue Selenium::WebDriver::Error::UnknownError => e
+    #  puts '-----'
+    #  puts e.message
+    #  puts '-----'
     end
-    puts page.text
-    puts __LINE__
+
     expect(page).to have_content(user.email_address)
-    puts __LINE__
     expect(page).to have_content("hello, It's me!")
     accept_alert do
       click_button "Logout"
     end
 
-    puts __LINE__
-
     Timeout.timeout(10) do
       until page.send(:has_content?, "Login")
         sleep 0.01
       end
-    rescue Selenium::WebDriver::Error::UnknownError
-      puts '------'
-      puts :baaad2
-      puts __LINE__
-      puts '------'
+    #rescue Selenium::WebDriver::Error::UnknownError => e
+    #  puts '-----'
+    #  puts e.message
+    #  puts '-----'
     end
 
+    # retry_once(Selenium::WebDriver::Error::UnknownError) { expect(page).to have_content("Login") }
+
     expect(page).to have_content("Login")
     expect(current_path).to eq("/login")
   end
+
+  # 以下のような
+  # Selenium::WebDriver::Error::UnknownError:
+  # unknown error: unhandled inspector error:
+  # {"code":-32000,"message":"Node with given id does not belong to the document"}
+
+  def retry_once_s
+    yield
+    retry_once(exception_class)
+  end
+
+
+  private def retry_once(exception_class)
+    count = 0
+    yield
+  rescue exception_class
+    if count.zero?
+      count += 1
+      retry
+    else
+      raise
+    end
+  end
 end