Issue #3492445 by DYdave: Added basic PHPUnit Functional test for text format settings form.

David Suissarequested to merge
issue/collapse_text-3492445:3492445-basic-functional-test into 2.0.x

https://www.drupal.org/project/collapse_text/issues/3492445

Automated testing: Added a basic Functional test class with a simple test for the Collapse Text form settings on a text format form.

Temporarily disabled testing for version above 10.3, until #3456477 is fixed.

Merge request reports