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Created By  alexey.grinevich Monday, March 19, 2018

Sometimes web applications use custom DOM attributes for internal purposes. XPath locators containing those attributes are sometimes more stable and resilient. Rapise contains features intended to simplify utilization of such attributes.

Custom Attributes in WebSpy

Consider sample web application http://www.libraryinformationsystem.org/react-js

Let's see how the DOM node for thePassword input looks like in the Spy: Password Tree

It contains the placeholder attribute. However XPath is built using the id. Sometimes we want to use such an attribute for XPath generation and for Learn.

Open the spy Options.

Spy Options

By default Include DOM Attributes is empty. This means two things:

1. Use all attributes in the Spy Tree.

2. Use default attributes (id, name, for, label) for the XPath generation (xpath_min and xpath_index).

 

Let's change it to placeholder,id:

Placeholder, Id

Now get snapshot again (Ctrl+G) and select the same element (Ctrl+T).

Tree, Placeholder

We can see that XPath generator used the placeholder attribute. Its logic is following:

  • If XPath with placeholder is sufficient then only one attribute is used.
  • If there is no placeholder then id attribute is used by XPath generator (since we specified placeholder,id as a filter).
  • If there is placeholder, but it does not produce unique XPath and there is also an id then both placeholder and id are used.
  • If no XPath is produced that way, then xpath_full (having no attributes but full path) is used.

If you want to use custom attributes for the Learn, then you may specify xpath_min as a default XPath:

Default XPath

DOM Attribute Include Filter specified in the options dialog is persistent. So you may fine-tune it for the specific application once and then get optimized XPath expressions every time when using Rapise Web Spy.

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Article Info
  • Last Updated: 3/19/2018
  • Article ID: KB310
  • Views: 521