iOS Class Chain locator strategu

[titusfortner]

XPath is inherently slow for iOS, so Watir's general approach of converting a locator hash into an XPath to locate elements in a DOM won't be performant. We will need to create an iOS specific locator class for Class Chains (and/or Predicate Strings). See: https://appiumpro.com/editions/8

[KazuCocoa]

Appium uses facebook/WebDriverAgent as a backend driver for over iOS 9 (xcuitest automation name)

https://github.com/facebook/WebDriverAgent/wiki/How-To-Achieve-The-Best-Lookup-Performance will help you to understand which strategy is heavy to lookup.

[titusfortner]

Yeah, essentially we'll want to create a ClassChain class that implements these methods: https://github.com/watir/watir/blob/master/lib/watir/locators/element/selector_builder/xpath.rb

It's going to be interesting figuring out how to properly deal with implementations that are browser/driver dependent (which Watir doesn't have to deal with)