To all the #xmpp client #developer !
How do you test your software with other clients?
I talk about #end2endtests.

How do you test that #gajim work well with #monal and #astrachat for example??
At least for those you try to implement the #modernxmpp recommandations ( https://docs.modernxmpp.org/ )

Modern XMPP

Documentation of the Modern XMPP project, an independent project launched to improve the quality of user-to-user messaging applications that use XMPP

In the same way, did you heard about "A set of bot scripts / tools that can connect to a given (set of) account(s)"

https://wiki.xmpp.org/web/Client_Test_Cases

Client Test Cases - XMPP WIKI