How to use rspec-retry with a Selenium Net::ReadTimeout error (Ruby)

Question

Can someone please give me a example of how to use rspec-retry with the selenium-webdriver. I am trying to get it to reattempt the navigation when there is a Net::ReadTimeout error. I found an example here but I am new to Ruby and don't think I am using it right.

What I have tried.

require 'selenium-webdriver'
require 'rspec/retry'

Selenium::WebDriver::PhantomJS.path = 'phantomjs.exe'
driver = Selenium::WebDriver.for :phantomjs
driver.manage.timeouts.page_load = 300

driver.navigate.to "http://google.com"

RSpec.configure do |config|
  # show retry status in spec process
  config.verbose_retry = true
  # Try five times (retry 4 times)
  config.default_retry_count = 5
  # Only retry when Selenium raises Net::ReadTimeout
  config.exceptions_to_retry = [Net::ReadTimeout]
end

puts(driver.title)
driver.quit

What do you see in your test log when it fails? Are you sure it isn't retrying and failing repeatedly? — Dave Schweisguth
– Dave Schweisguth, Commented Feb 23, 2016 at 22:02
I don't know how to have it write to a test log so no I am not sure it is retrying and failing. — MrAutoIt
– MrAutoIt, Commented Feb 23, 2016 at 22:07
Maybe you should add more info to your question. Are you testing a Rails app with rspec-rails, or are you testing a remote application? — Dave Schweisguth
– Dave Schweisguth, Commented Feb 23, 2016 at 22:09
I am using pure Ruby and the code above. The only deference is that I am navigating to 100 or so URL's. The above code works 90% of the time but then randomly crashes with a Net::ReadTimeout error. I am simply trying to stop it from crashing on the error and have re-navigate to the URL. When I restart the code after a crash it seems to navigate just fine to the same URL. — MrAutoIt
– MrAutoIt, Commented Feb 23, 2016 at 22:16

J. Levine · Accepted Answer · 2016-08-01 19:22:56Z

5

It sounds like you may not be using rspec at all, but just want the retry behavior that is provided by the rspec-retry gem. If that's the case, you could just use ruby's rescue and retry keywords to achieve the same thing.

For example, the following code will retry the navigation 1 time if the navigation throws a Net::ReadTimeout

require 'selenium-webdriver'

Selenium::WebDriver::PhantomJS.path = 'phantomjs.exe'
driver = Selenium::WebDriver.for :phantomjs
driver.manage.timeouts.page_load = 300

attempts = 0  # has to be outside the begin/rescue to avoid infinite loop
begin
  driver.navigate.to "http://google.com"
rescue Net::ReadTimeout => e
  if attempts == 0
    attempts += 1
    retry
  else
    raise
  end
end

edited Aug 1, 2016 at 19:22

J. Levine

681 silver badge3 bronze badges

answered Feb 24, 2016 at 17:57

Dhruv

1,40012 silver badges20 bronze badges

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