How can I handle an alert with GhostDriver via Python?

Question

Problem: The GhostDriver API does not yet support alert handling. There is an acceptable workaround for the time being, which is to inject your own javascr

Answer 1

This is some workaround.

Use this for every reloaded page that would have an alert later.

driver.execute_script("window.confirm = function(){return true;}");

This works for PhantomJS within Selenium/Splinter.

See more reference here.

Answer 2

A simple solution is to rewrite the window.alert method to output the argument to a global variable.

Define the js injection variable with your override function:

js = """
window.alert = function(message) {
lastAlert = message;
}
"""

And then just pass the js variable through the execute_script call in python like this:

driver.execute_script("%s" % js)

Then when it's all been run you can execute a return on the global lastAlert:

driver.execute_script("return lastAlert")