Error: No code coverage driver is available
.........................EEE 28 / 28 (100%)
Time: 66 ms, Memory: 4.00MB
There were 3 errors:
1) BankAccountWithCustomExtensionTest::testBalanceIsInitiallyZero
Error: Class 'BankAccount' not found
/var/www/php-u2flib-server/vendor/phpunit/phpunit/tests/_files/BankAccountTest.test.php:22
2) BankAccountWithCustomExtensionTest::testBalanceCannotBecomeNegative
Error: Class 'BankAccount' not found
/var/www/php-u2flib-server/vendor/phpunit/phpunit/tests/_files/BankAccountTest.test.php:22
3) BankAccountWithCustomExtensionTest::testBalanceCannotBecomeNegative2
Error: Class 'BankAccount' not found
/var/www/php-u2flib-server/vendor/phpunit/phpunit/tests/_files/BankAccountTest.test.php:22