public function testEmbedContent()
{
$message = new Message();
$fileName = __DIR__ . '/../test_image.png';
$cid = $message->embedContent(file_get_contents($fileName), ['fileName' => 'test_image.png']);
$this->assertEquals('image_0', $cid);
$images = $message->getImages();
$this->assertCount(1, $images);
$image = $images[0];
$this->assertEquals($image['name'], 'test_image.png');
$this->assertEquals($image['data'], base64_encode(file_get_contents($fileName)));
$cid1 = $message->embedContent(file_get_contents($fileName));
$images = $message->getImages();
$this->assertCount(2, $images);
$image = $images[1];
$this->assertEquals($image['name'], 'image_1');
$this->assertEquals($cid1, 'image_1');
}
