/**
* Tests the getInstance method.
*
* @covers \Drupal\Core\Mail\MailManager::getInstance()
*/
public function testGetInstance()
{
$interface = array('default' => 'php_mail', 'example_testkey' => 'test_mail_collector');
$this->setUpMailManager($interface);
// Test that an unmatched message_id returns the default plugin instance.
$options = array('module' => 'foo', 'key' => 'bar');
$instance = $this->mailManager->getInstance($options);
$this->assertInstanceOf('Drupal\\Core\\Mail\\Plugin\\Mail\\PhpMail', $instance);
// Test that a matching message_id returns the specified plugin instance.
$options = array('module' => 'example', 'key' => 'testkey');
$instance = $this->mailManager->getInstance($options);
$this->assertInstanceOf('Drupal\\Core\\Mail\\Plugin\\Mail\\TestMailCollector', $instance);
}
