Usage of gotd for e2e testing

[9seconds]

Hey! Thanks for the project!

I have tried to use gotd for testing of https://github.com/9seconds/mtg but can't figure out if it is possible to do that. Let me show you an example: https://github.com/9seconds/mtg/blob/master/mtglib/proxy_test.go#L139-L169

This is a rather simple test. I start mtg and send HTTPS requests to this proxy. My goal is to see a response from the fronting domain. I wanna do the same test but for Telegram itself:

1. Start mtg
2. Configure gotd to use this proxy (it uses faketls only if it matters)
3. Send Ping request
4. Get Pong back.

AFAIK, Ping and Pongs are authorization-free and can be sent without any credentials.

How can I make such a test? I do not need anything smart here. I just want to get a response from Telegram to check e2e connectivity.

[tdakkota]

Hi!

There is example how to use MTProxy transport
https://pkg.go.dev/github.com/gotd/td@v0.33.3/telegram#example-Client-Mtproxy

        ...
	resolver, err := dcs.MTProxyResolver(
		os.Getenv("PROXY_ADDR"),
		secret,
		dcs.MTProxyOptions{},
	)
	if err != nil {
		return xerrors.Errorf("create MTProxy resolver: %w", err)
	}
       ...

Also, you can use your own DialFunc and pass it to the MTProxyResolver in MTProxyOptions

It can be useful for testing transport through net.Pipe.

[ernado]

@9seconds
Do you want to use telegram testing servers or you want embedded telegram server for e2e tests?
Internally wee are using very basic telegram server in go for our local e2e tests in some cases.

[9seconds]

I would like to use Telegram servers. This gonna be a simple integration test

[9seconds]

Thanks, guys! 9seconds/mtg#184