public function testSubjectAccessors()
{
$this->iniSet('sendmail_from', '');
$mail = new \r8\Mail($this->getTestTransport());
$this->assertFalse($mail->subjectExists());
$this->assertNull($mail->getSubject());
$this->assertSame($mail, $mail->setSubject("Hey there"));
$this->assertTrue($mail->subjectExists());
$this->assertSame("Hey there", $mail->getSubject());
$this->assertSame($mail, $mail->clearSubject());
$this->assertFalse($mail->subjectExists());
$this->assertNull($mail->getSubject());
$this->assertSame($mail, $mail->setSubject("Some\nkind of" . chr(1) . " thing"));
$this->assertTrue($mail->subjectExists());
$this->assertSame("Some kind of thing", $mail->getSubject());
$this->assertSame($mail, $mail->setSubject(" "));
$this->assertFalse($mail->subjectExists());
$this->assertNull($mail->getSubject());
}