After upgrading Moodle to version: 20141028

PHPUnit reports error:
PHP Fatal error: Cannot redeclare class question_engine_data_mapper_testcase in /home/travis/build/nitro2010/moodle-phpunit-dev/question/engine/tests/question_engine_data_mapper_test.php on line 314
PHP Stack trace:
PHP 1.

{main}() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/composer/bin/phpunit:0
PHP 2. PHPUnit_TextUI_Command::main() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/composer/bin/phpunit:63
PHP 3. PHPUnit_TextUI_Command->run() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/TextUI/Command.php:129
PHP 4. PHPUnit_TextUI_Command->handleArguments() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/TextUI/Command.php:138
PHP 5. PHPUnit_Util_Configuration->getTestSuiteConfiguration() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/TextUI/Command.php:657
PHP 6. PHPUnit_Util_Configuration->getTestSuite() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/Util/Configuration.php:797
PHP 7. PHPUnit_Framework_TestSuite->addTestFiles() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/Util/Configuration.php:873
PHP 8. PHPUnit_Framework_TestSuite->addTestFile() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/Framework/TestSuite.php:416
PHP 9. PHPUnit_Util_Fileloader::checkAndLoad() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/Framework/TestSuite.php:355
PHP 10. PHPUnit_Util_Fileloader::load() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/Util/Fileloader.php:76
Fatal error: Cannot redeclare class question_engine_data_mapper_testcase in /home/travis/build/nitro2010/moodle-phpunit-dev/question/engine/tests/question_engine_data_mapper_test.php on line 314
Call Stack:
0.0002 239224 1. {main}

() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/composer/bin/phpunit:0
0.0060 651520 2. PHPUnit_TextUI_Command::main() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/composer/bin/phpunit:63
0.0060 657504 3. PHPUnit_TextUI_Command->run() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/TextUI/Command.php:129
0.0060 659912 4. PHPUnit_TextUI_Command->handleArguments() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/TextUI/Command.php:138
2.3280 65197776 5. PHPUnit_Util_Configuration->getTestSuiteConfiguration() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/TextUI/Command.php:657
7.6445 166618696 6. PHPUnit_Util_Configuration->getTestSuite() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/Util/Configuration.php:797
7.6488 166625544 7. PHPUnit_Framework_TestSuite->addTestFiles() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/Util/Configuration.php:873
7.7220 167944672 8. PHPUnit_Framework_TestSuite->addTestFile() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/Framework/TestSuite.php:416
7.7236 167944944 9. PHPUnit_Util_Fileloader::checkAndLoad() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/Framework/TestSuite.php:355
7.7237 167945128 10. PHPUnit_Util_Fileloader::load() /home/travis/build/nitro2010/moodle-phpunit-dev/vendor/phpunit/phpunit/PHPUnit/Util/Fileloader.php:76

from Linux:
xena moodle-phpunit-dev # grep -R "question_engine_data_mapper_testcase" *
question/engine/tests/question_engine_data_mapper_test.php:class question_engine_data_mapper_testcase extends qbehaviour_walkthrough_test_base {
question/engine/tests/datalib_test.php:class question_engine_data_mapper_testcase extends qbehaviour_walkthrough_test_base {

In previous version only one file has it name of class.