Failed to start the session because headers have already been sent by Printer.php #46995

Loicyeu · 2022-07-20T12:42:56Z

Loicyeu
Jul 20, 2022

I'm sorry to ask a question already resolved #43950 and #42832 but the solutions proposed dont work for me.

Version used :

PHP 8.1
Symfony 6.1
PHPUnit 9.5.21

When I run the test below I get this error :

class InternalLoginTest extends WebTestCase
{
    public function testLoginSuccess(): void
    {
        $client = static::createClient();
        $crawler = $client->request('GET', '/login');

        $form = $crawler->selectButton('Me connecter')->form();

        $form['email']->setValue('bob@gmail.com');
        $form['password']->setValue('123abcABC%');

        $crawler = $client->submit($form);
        $this->assertResponseIsSuccessful();
    }
}

<!-- Failed to start the session because headers have already been sent by &quot;C:\Users\cimba\Documents\ekomind\vendor\phpunit\phpunit\src\Util\Printer.php&quot; at line 104. (500 Internal Server Error) -->

C:\Users\cimba\Documents\ekomind\vendor\symfony\framework-bundle\Test\BrowserKitAssertionsTrait.php:142
C:\Users\cimba\Documents\ekomind\vendor\symfony\framework-bundle\Test\BrowserKitAssertionsTrait.php:33
C:\Users\cimba\Documents\ekomind\tests\InternalLoginTest.php:47

Caused by
ErrorException: Failed to start the session because headers have already been sent by "C:\Users\cimba\Documents\ekomind\vendor\phpunit\phpunit\src\Util\Printer.php" at line 104. in C:\Users\cimba\Documents\ekomind\vendor\symfony\http-foundation\Session\Storage\NativeSessionStorage.php:135
Stack trace:
#0 C:\Users\cimba\Documents\ekomind\vendor\symfony\framework-bundle\Test\BrowserKitAssertionsTrait.php(33): Symfony\Bundle\FrameworkBundle\Test\WebTestCase::assertThatForResponse(Object(Symfony\Component\HttpFoundation\Test\Constraint\ResponseIsSuccessful), '')
#1 C:\Users\cimba\Documents\ekomind\tests\InternalLoginTest.php(47): Symfony\Bundle\FrameworkBundle\Test\WebTestCase::assertResponseIsSuccessful()
#2 C:\Users\cimba\Documents\ekomind\vendor\phpunit\phpunit\src\Framework\TestCase.php(1545): App\Tests\InternalLoginTest->testLoginFailure()
#3 C:\Users\cimba\Documents\ekomind\vendor\phpunit\phpunit\src\Framework\TestCase.php(1151): PHPUnit\Framework\TestCase->runTest()
#4 C:\Users\cimba\Documents\ekomind\vendor\phpunit\phpunit\src\Framework\TestResult.php(726): PHPUnit\Framework\TestCase->runBare()
#5 C:\Users\cimba\Documents\ekomind\vendor\phpunit\phpunit\src\Framework\TestCase.php(903): PHPUnit\Framework\TestResult->run(Object(App\Tests\InternalLoginTest))
#6 C:\Users\cimba\Documents\ekomind\vendor\phpunit\phpunit\src\Framework\TestSuite.php(670): PHPUnit\Framework\TestCase->run(Object(PHPUnit\Framework\TestResult))
#7 C:\Users\cimba\Documents\ekomind\vendor\phpunit\phpunit\src\Framework\TestSuite.php(670): PHPUnit\Framework\TestSuite->run(Object(PHPUnit\Framework\TestResult))
#8 C:\Users\cimba\Documents\ekomind\vendor\phpunit\phpunit\src\Framework\TestSuite.php(670): PHPUnit\Framework\TestSuite->run(Object(PHPUnit\Framework\TestResult))
#9 C:\Users\cimba\Documents\ekomind\vendor\phpunit\phpunit\src\TextUI\TestRunner.php(673): PHPUnit\Framework\TestSuite->run(Object(PHPUnit\Framework\TestResult))
#10 C:\Users\cimba\Documents\ekomind\vendor\phpunit\phpunit\src\TextUI\Command.php(143): PHPUnit\TextUI\TestRunner->run(Object(PHPUnit\Framework\TestSuite), Array, Array, true)
#11 C:\Users\cimba\Documents\ekomind\vendor\phpunit\phpunit\src\TextUI\Command.php(96): PHPUnit\TextUI\Command->run(Array, true)
#12 C:\Users\cimba\Documents\ekomind\bin\phpunit(11): PHPUnit\TextUI\Command::main()
#13 {main}

The big problem is that my config files are the same proposed by the other threads

framework.yaml

framework:
    secret: '%env(APP_SECRET)%'
    http_method_override: false
    session:
        handler_id: null
        cookie_secure: auto
        cookie_samesite: lax
        storage_factory_id: session.storage.factory.native
    php_errors:
        log: true

when@test:
    framework:
        test: true
        session:
            storage_factory_id: session.storage.factory.mock_file

Does anyone have an idea ? If you need other details i'll send them.

MatTheCat · 2022-08-21T10:51:47Z

MatTheCat
Aug 21, 2022

Are you sure APP_ENV is test when you run PHPUnit?

0 replies

Failed to start the session because headers have already been sent by Printer.php #46995

Loicyeu Jul 20, 2022

Replies: 1 comment

MatTheCat Aug 21, 2022

Insert Link

Loicyeu
Jul 20, 2022

MatTheCat
Aug 21, 2022