Selenium : Admin should be able to log into the Magento Admin backend successfully

Question

I'm trying to run functional tests on my magento project following this tutorial i'm using selenium docker image by running this command :

docker run -d -p 4444:4444 --shm-size 2g selenium/standalone-chrome:3.9.1

and when i try running an example test vendor/bin/mftf run:test AdminLoginSuccessfulTest --remove

I get this error : Fail Field by name, label, CSS or XPath element with '#username' was not found.

and when i checked the screenshot provided by selenium i get 127.0.0.1 refused to connect

I don't how to fix it and allow it to access 127.0.0.1 and while looking for an error i found this under dev/tests/accesptance/tests/_output/allure-results this error

Test filesvendor/magento/module-backend/Test/Mftf/Test/AdminLoginSuccessfulTest.xml
]]> Field by name, label, CSS or XPath element with '#username' was not found. #0 /var/www/html/tajerpro/vendor/codeception/module-webdriver/src/Codeception/Module/WebDriver.php(1201): Codeception\Module\WebDriver->findFields() #1 /var/www/html/tajerpro/vendor/codeception/module-webdriver/src/Codeception/Module/WebDriver.php(1746): Codeception\Module\WebDriver->findField() #2 [internal function]: Codeception\Module\WebDriver->fillField() #3 /var/www/html/tajerpro/vendor/codeception/codeception/src/Codeception/Step.php(268): call_user_func_array() #4 /var/www/html/tajerpro/vendor/codeception/codeception/src/Codeception/Scenario.php(76): Codeception\Step->run() #5 /var/www/html/tajerpro/vendor/magento/magento2-functional-testing-framework/src/Magento/FunctionalTestingFramework/_generated/AcceptanceTesterActions.php(1874): Codeception\Scenario->runStep() #6 /var/www/html/tajerpro/dev/tests/acceptance/tests/functional/Magento/_generated/default/AdminLoginSuccessfulTestCest.php(37): Magento\FunctionalTestingFramework\AcceptanceTester->fillField() #7 [internal function]: Magento\AcceptanceTest_default\Backend\AdminLoginSuccessfulTestCest->AdminLoginSuccessfulTest() #8 /var/www/html/tajerpro/vendor/codeception/codeception/src/Codeception/Lib/Di.php(128): ReflectionMethod->invokeArgs() #9 /var/www/html/tajerpro/vendor/codeception/codeception/src/Codeception/Test/Cest.php(138): Codeception\Lib\Di->injectDependencies() #10 /var/www/html/tajerpro/vendor/codeception/codeception/src/Codeception/Test/Cest.php(150): Codeception\Test\Cest->invoke() #11 /var/www/html/tajerpro/vendor/codeception/codeception/src/Codeception/Test/Cest.php(82): Codeception\Test\Cest->executeTestMethod() #12 /var/www/html/tajerpro/vendor/codeception/codeception/src/Codeception/Test/Test.php(98): Codeception\Test\Cest->test() #13 /var/www/html/tajerpro/vendor/phpunit/phpunit/src/Framework/TestSuite.php(639): Codeception\Test\Test->run() #14 /var/www/html/tajerpro/vendor/codeception/phpunit-wrapper/src/Runner.php(117): PHPUnit\Framework\TestSuite->run() #15 /var/www/html/tajerpro/vendor/codeception/codeception/src/Codeception/SuiteManager.php(161): Codeception\PHPUnit\Runner->doEnhancedRun() #16 /var/www/html/tajerpro/vendor/codeception/codeception/src/Codeception/Codecept.php(208): Codeception\SuiteManager->run() #17 /var/www/html/tajerpro/vendor/codeception/codeception/src/Codeception/Codecept.php(162): Codeception\Codecept->runSuite() #18 /var/www/html/tajerpro/vendor/codeception/codeception/src/Codeception/Command/Run.php(401): Codeception\Codecept->run() #19 /var/www/html/tajerpro/vendor/symfony/console/Command/Command.php(255): Codeception\Command\Run->execute() #20 /var/www/html/tajerpro/vendor/symfony/console/Application.php(1009): Symfony\Component\Console\Command\Command->run() #21 /var/www/html/tajerpro/vendor/symfony/console/Application.php(273): Symfony\Component\Console\Application->doRunCommand() #22 /var/www/html/tajerpro/vendor/symfony/console/Application.php(149): Symfony\Component\Console\Application->doRun() #23 /var/www/html/tajerpro/vendor/codeception/codeception/src/Codeception/Application.php(117): Symfony\Component\Console\Application->run() #24 /var/www/html/tajerpro/vendor/codeception/codeception/app.php(46): Codeception\Application->run() #25 /var/www/html/tajerpro/vendor/codeception/codeception/app.php(47): {closure}() #26 /var/www/html/tajerpro/vendor/codeception/codeception/codecept(7): require('/var/www/html/t...') #27 {main}

Is having selenium and my web driver is causing the problem?