By following the documentation you can create functional tests to verify the functioning of Drupal as a whole.
The official doc is here:
https://www.drupal.org/docs/develop/automated-testing/phpunit-in-drupal/... →
However, unlike UnitTestCase and KernelTestBase tests, BrowserTestBase type do not generate code coverage.
When BrowserTestBase type tests fail the exception raised is "Behat\Mink\Exception" but from behat documentation https://behat.cc/en/stable/ the generation of the code coverage report seems supported.
in summary: are BrowserTestBase type tests expected to generate coverage?
If coverage is expected to be generated, how do you activate it?
Closed: duplicate
10.2 ✨
There is some discussion about adding code coverage reports at ✨ Allow run-tests.sh to generate coverage reports Needs work , please read that issue and help out there if you can.