Selenium-Webdriver Ruby --> How to wait for images to be fully loaded after click

Question

I am very new to Ruby and Selenium-Webdriver, so please, help :)

I am trying to open email campaign , sent to my inbox, that has images and take a screenshot in the

Answer 1

To add to the above answer, here is how I use implicit and explicit wait in Ruby.

Implicit Wait

I pass this option to Selenium::WebDriver after initializing with a couple of lines like this:

browser = Selenium::WebDriver.for :firefox
browser.manage.timeouts.implicit_wait = 10

Just replace "10" with the number of seconds you'd like the browser to wait for page refreshes and other such events.

Explicit Wait

There are two steps to declaring an explicit wait in Selenium. First you set the timeout period by declaring a wait object, and then you invoke the wait with Selenium::Webdriver's .until method. It would look something like this, in your example:

wait = Selenium::WebDriver::Wait.new(:timeout => 10)
wait.until { browser.find_element(:xpath, "//path/to/picture").displayed? }

This would tell the Webdriver to wait a maximum of 10 seconds for the picture element to be displayed. You can also use .enabled? if the element you're waiting for is an interactive element - this is especially useful when you're working with Ajax-based input forms.

You can also declare an explicit wait period at the start of your script, and then reference the object again whenever you need it. There's no need to redeclare it unless you want to set a new timeout. Personally, I like to keep the wait.until wrapped in a method, because I know I'm going to reference it repeatedly. Something like:

def wait_for_element_present( how_long=5, how, what )
  wait_for_it = Selenium::WebDriver::Wait.new(:timeout => how_long )
  wait_for_it.until { @browser.find_element(how, what) }
end

(I find it's easier to just declare browser as an instance variable so that you don't have to pass it to the method each time, but that part's up to you, I guess?)