public function testCreateFromBinaryData()
{
$text = "Hello i am a string";
$attachment = Attachment::createFromBinaryData($text, "text/plain");
$this->assertEquals($text, $attachment->getRawData());
$this->assertEquals("text/plain", $attachment->getContentType());
$this->assertEquals("SGVsbG8gaSBhbSBhIHN0cmluZw==", $attachment->getBase64EncodedData());
$this->assertEquals(28, $attachment->getLength());
}