Improve error message that a component can not be found if the project is using Polymer Templates

mvysny / karibu-testing

Vaadin Server-Side Browserless Containerless Unit Testing

Apache License 2.0

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Improve error message that a component can not be found if the project is using Polymer Templates #35

Closed mvysny closed 4 years ago

mvysny commented 4 years ago

A lookup of components fail with Polymer Templates; that's unfortunately the technical limitation of the Polymer Templates (I'll explain that later on), however Karibu-Testing should definitely fail with a much more informative error message.

mvysny commented 4 years ago

The problem is as follows:

Karibu-Testing uses server-side API to walk through the layouts, its children, the children of its children, until the desired TextField is found.

However, PolymerTemplates are very special. They were designed to offload as much components as possible to the client-side, thus saving server memory.

Please find a documentation regarding this here: https://github.com/mvysny/karibu-testing/tree/master/karibu-testing-v10#polymer-templates

mvysny commented 4 years ago

Fixed in KT 1.1.25, 1.2.1