MessageStreamHeader example

$this->expectException(HttpTransportException::class);
        $this->expectExceptionMessage('Unable to send an email: i\'m a teapot (code 418).');
        $transport->send($mail);
    }

    public function testTagAndMetadataAndMessageStreamHeaders()
    {
        $email = new Email();
        $email->getHeaders()->add(new TagHeader('password-reset'));
        $email->getHeaders()->add(new MetadataHeader('Color', 'blue'));
        $email->getHeaders()->add(new MetadataHeader('Client-ID', '12345'));
        $email->getHeaders()->add(new MessageStreamHeader('broadcasts'));
        $envelope = new Envelope(new Address('alice@system.com'), [new Address('bob@system.com')]);

        $transport = new PostmarkApiTransport('ACCESS_KEY');
        $method = new \ReflectionMethod(PostmarkApiTransport::class, 'getPayload');
        $payload = $method->invoke($transport, $email, $envelope);

        $this->assertArrayNotHasKey('Headers', $payload);
        $this->assertArrayHasKey('Tag', $payload);
        $this->assertArrayHasKey('Metadata', $payload);
        $this->assertArrayHasKey('MessageStream', $payload);

        

$this->assertSame('X-PM-KeepID: true', $email->getHeaders()->get('X-PM-KeepID')->toString());
        $this->assertSame('foo: bar', $email->getHeaders()->get('FOO')->toString());
    }

    public function testTagAndMetadataAndMessageStreamHeaders()
    {
        $email = new Email();
        $email->getHeaders()->addTextHeader('foo', 'bar');
        $email->getHeaders()->add(new TagHeader('password-reset'));
        $email->getHeaders()->add(new MetadataHeader('Color', 'blue'));
        $email->getHeaders()->add(new MetadataHeader('Client-ID', '12345'));
        $email->getHeaders()->add(new MessageStreamHeader('broadcasts'));

        $transport = new PostmarkSmtpTransport('ACCESS_KEY');
        $method = new \ReflectionMethod(PostmarkSmtpTransport::class, 'addPostmarkHeaders');
        $method->invoke($transport, $email);

        $this->assertCount(6, $email->getHeaders()->toArray());
        $this->assertSame('foo: bar', $email->getHeaders()->get('FOO')->toString());
        $this->assertSame('X-PM-KeepID: true', $email->getHeaders()->get('X-PM-KeepID')->toString());
        $this->assertSame('X-PM-Tag: password-reset', $email->getHeaders()->get('X-PM-Tag')->toString());
        $this->assertSame('X-PM-Metadata-Color: blue', $email->getHeaders()->get('X-PM-Metadata-Color')->toString());
        $this->assertSame('X-PM-Metadata-Client-ID: 12345', $email->getHeaders()->get('X-PM-Metadata-Client-ID')->toString());