when I run core unit tests with phpunit 4.5:
Fatal error: Class 'PHPUnit_Framework_ComparisonFailure' not found in /Library/WebServer/Documents/php-master/tests/phpunit/includes/api/query/ApiQueryTestBase.php on line 121
Call Stack:
0.0005 276760 1. {main}() /Library/WebServer/Documents/php-master/tests/phpunit/phpunit.php:0
0.1091 13764536 2. PHPUnit_TextUI_Command::main() /Library/WebServer/Documents/php-master/tests/phpunit/phpunit.php:239
0.1091 13765160 3. PHPUnit_TextUI_Command->run() /Library/WebServer/Documents/php-master/vendor/phpunit/phpunit/src/TextUI/Command.php:104
23.1963 378913480 4. PHPUnit_TextUI_TestRunner->doRun() /Library/WebServer/Documents/php-master/vendor/phpunit/phpunit/src/TextUI/Command.php:152
24.1140 379318824 5. PHPUnit_Framework_TestSuite->run() /Library/WebServer/Documents/php-master/vendor/phpunit/phpunit/src/TextUI/TestRunner.php:398
25.9995 379324424 6. PHPUnit_Framework_TestSuite->run() /Library/WebServer/Documents/php-master/vendor/phpunit/phpunit/src/Framework/TestSuite.php:716
65.5201 455416224 7. PHPUnit_Framework_TestSuite->run() /Library/WebServer/Documents/php-master/vendor/phpunit/phpunit/src/Framework/TestSuite.php:716
65.5220 455419920 8. MediaWikiTestCase->run() /Library/WebServer/Documents/php-master/vendor/phpunit/phpunit/src/Framework/TestSuite.php:716
65.5254 455450608 9. PHPUnit_Framework_TestCase->run() /Library/WebServer/Documents/php-master/tests/phpunit/MediaWikiTestCase.php:132
65.5255 455451016 10. PHPUnit_Framework_TestResult->run() /Library/WebServer/Documents/php-master/vendor/phpunit/phpunit/src/Framework/TestCase.php:693
65.5255 455453064 11. PHPUnit_Framework_TestCase->runBare() /Library/WebServer/Documents/php-master/vendor/phpunit/phpunit/src/Framework/TestResult.php:609
65.6518 455716984 12. PHPUnit_Framework_TestCase->runTest() /Library/WebServer/Documents/php-master/vendor/phpunit/phpunit/src/Framework/TestCase.php:737
65.6518 455717760 13. ReflectionMethod->invokeArgs() /Library/WebServer/Documents/php-master/vendor/phpunit/phpunit/src/Framework/TestCase.php:860
65.6518 455717904 14. ApiQueryBasicTest->testProps() /Library/WebServer/Documents/php-master/vendor/phpunit/phpunit/src/Framework/TestCase.php:860
65.6518 455718008 15. ApiQueryTestBase->check() /Library/WebServer/Documents/php-master/tests/phpunit/includes/api/query/ApiQueryBasicTest.php:226
65.6593 455865808 16. ApiQueryTestBase->assertResult() /Library/WebServer/Documents/php-master/tests/phpunit/includes/api/query/ApiQueryTestBase.php:107