Moodle 3.8.2+ (Build: 20200320)
Php: 7.2.24.0.0.18.04.3, mariadb: 10.1.44, OS: Linux 4.15.0-91-generic x86_64
PHPUnit 7.5.17 by Sebastian Bergmann and contributors.

Runtime:       PHP 7.2.24-0ubuntu0.18.04.3
Configuration: /var/www/html/moodle/phpunit.xml

EE                                                                  2 / 2 (100%)

Time: 6.71 minutes, Memory: 60.25 MB

There were 2 errors:

1) core_h5p\h5p_core_test::test_fetch_content_type
PHPUnit\Framework\Exception: Use of subplugins.php has been deprecated. Please update your '/var/www/html/moodle/mod/hotpot' plugin to provide a subplugins.json file instead.

To re-run:
 vendor/bin/phpunit --verbose "core_h5p\h5p_core_test" h5p/tests/h5p_core_test.php

2) core_h5p\h5p_core_test::test_fetch_latest_content_types
PHPUnit\Framework\Exception: Use of subplugins.php has been deprecated. Please update your '/var/www/html/moodle/mod/hotpot' plugin to provide a subplugins.json file instead.

To re-run:
 vendor/bin/phpunit --verbose "core_h5p\h5p_core_test" h5p/tests/h5p_core_test.php

ERRORS!
Tests: 2, Assertions: 0, Errors: 2.