Structured Data Testing Tool Revamped by Google
In order to make it even more user-friendly, Google has made some major changes to redesign the structured data testing tool. The added overlay box asks for the URL you want to test or a snippet of sample code.
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This development was confirmed by Google’s John Mueller on Google+.
Here’s a snapshot of the redesigned tool:

Once you plug it in, Google will show whether it has been validated. If it shows no-validation, you will need to click to see each type of schema and related errors. This would help you to spot and correct errors specific to every schema instead of having them listed on a single page at once.
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