Failing unit tests in Moodle 4.3

[ScottVerbeek]

Moodle 4.3+ (Build: 20231201), a418e9e53aef54f624cec25c48a4b2bfe7bd4524
Php: 8.1.24, pgsql: 14.0 (Debian 14.0-1.pgdg110+1), OS: Linux 6.4.12-060412-generic x86_64
PHPUnit 9.5.28 by Sebastian Bergmann and contributors.

...............................................................  63 / 253 ( 24%)
...............................................F............... 126 / 253 ( 49%)
............................................................... 189 / 253 ( 74%)
..................F..........................FFF............... 252 / 253 ( 99%)
.                                                               253 / 253 (100%)

Time: 00:34.414, Memory: 90.50 MB

There were 5 failures:

1) block_quickmail_message_form_validator_testcase::test_validate_unsupported_message_type_is_invalid
Failed asserting that false is true.

/var/www/vanilla-403/blocks/quickmail/tests/unit/message_form_validator_test.php:289
/var/www/vanilla-403/lib/phpunit/classes/advanced_testcase.php:81

2) block_quickmail_save_draft_message_validator_testcase::test_validate_unsupported_message_type_is_invalid
Failed asserting that false is true.

/var/www/vanilla-403/blocks/quickmail/tests/unit/save_draft_message_validator_test.php:308
/var/www/vanilla-403/lib/phpunit/classes/advanced_testcase.php:81

3) block_quickmail_subject_prepender_testcase::test_format_course_subject_with_idnumber_setting
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
-'[] Hello world!'
+'Hello world!'

/var/www/vanilla-403/blocks/quickmail/tests/unit/subject_prepender_test.php:58
/var/www/vanilla-403/lib/phpunit/classes/advanced_testcase.php:81

4) block_quickmail_subject_prepender_testcase::test_format_course_subject_with_shortname_setting
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
-'[tc_1] Hello world!'
+'Hello world!'

/var/www/vanilla-403/blocks/quickmail/tests/unit/subject_prepender_test.php:72
/var/www/vanilla-403/lib/phpunit/classes/advanced_testcase.php:81

5) block_quickmail_subject_prepender_testcase::test_format_course_subject_with_fullname_setting
Failed asserting that two strings are equal.
--- Expected
+++ Actual
@@ @@
-'[Test course 1] Hello world!'
+'Hello world!'

/var/www/vanilla-403/blocks/quickmail/tests/unit/subject_prepender_test.php:86
/var/www/vanilla-403/lib/phpunit/classes/advanced_testcase.php:81

FAILURES!
Tests: 253, Assertions: 1011, Failures: 5.