silverstripe-framework/docs/en/02_Developer_Guides/06_Testing/How_Tos/03_Testing_Email.md

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How to test emails within unit tests	Test email functionality without ever hitting an inbox	envelope

Testing Email within Unit Tests

SilverStripe's test system has built-in support for testing emails sent using the Email class. If you are running a SapphireTest test, then it holds off actually sending the email, and instead lets you assert that an email was sent using this method.

use SilverStripe\Control\Email\Email;

public function MyMethod() 
{
    $e = new Email();
    $e->To = "someone@example.com";
    $e->Subject = "Hi there";
    $e->Body = "I just really wanted to email you and say hi.";
    $e->send();
}

To test that MyMethod sends the correct email, use the SapphireTest::assertEmailSent() method.

$this->assertEmailSent($to, $from, $subject, $body);

// to assert that the email is sent to the correct person
$this->assertEmailSent("someone@example.com", null, "/th.*e$/");

Each of the arguments ($to, $from, $subject and $body) can be either one of the following.

• A string: match exactly that string
• null/false: match anything
• A PERL regular expression (starting with '/')

Related Documentation

• Email

API Documentation

• Email