How to test email sending in PHPUnit?

by raphael_tillman , in category: PHP General , 7 months ago

How to test email sending in PHPUnit?

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1 answer

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by lottie , 7 months ago

@raphael_tillman 

To test email sending in PHPUnit, you can follow these steps:

  1. Install the necessary dependencies:
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composer require phpunit/phpunit
composer require symfony/mailer
composer require symfony/event-dispatcher


  1. Create a test case class that extends PHPUnitFrameworkTestCase:
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use SymfonyComponentMailerTestConstraintEmailSent;
use SymfonyComponentMailerTestEmailAssertions;
use SymfonyComponentMailerTestInterceptorEmailInterceptor;
use SymfonyComponentMailerTestTransportNullTransport;
use SymfonyComponentMimeEmail;
use PHPUnitFrameworkTestCase;

class EmailSendingTest extends TestCase
{
    // ...

    protected function setUp(): void
    {
        EmailAssertions::setMailerTransport(new NullTransport());
    }

    public function testEmailSending()
    {
        // Create an instance of the email you want to send
        $email = new Email();
        $email->from('[email protected]')
              ->to('[email protected]')
              ->subject('Test email')
              ->text('This is a test email');

        // Send the email
        $emailInterceptor = new EmailInterceptor();
        $emailInterceptor->intercept($email);
        $emailInterceptor->flush();

        // Assert that the email was sent
        $this->assertThat(new EmailSent($email), new EmailSentConstraint());
    }
}


  1. Run the test by executing the following command in the console:
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vendor/bin/phpunit


This will execute the test case and check if the email was sent correctly. If it was sent, the test will pass, otherwise it will fail.