Cons T. Ahs

Core developer of network device and network configuration, technical leader @ Cisco

Cons has a long history of writing code, with Lisp and functional languages from early days. Worked with formal methods, language implementation and lecturing at Uppsala University and escaped to a life of speech synthesis, music notation, graphics, networks, imaging, online poker and more language implementation.

Currently working at Cisco using Erlang for writing software for network device configuration (ConfD) and network configuration (NSO). Uses lux a lot. Likes typed languages and is targeting the BEAM with a new language.

Past Activities

Hakan Mattsson / Cons T. Ahs
Code BEAM STO 2019
16 May 2019
10.45 - 11.30

LUX - an expect like test tool

LUX is an open source test tool written in Erlang and mostly used for testing Erlang code. But as a user of the tool you do not need to bother about that. It provides a highly automated test environment where it is simple to perform concurrent orchestration of text based interfaces such as shells, interpreters, CLI's etc. Some major design goals are that the test programs should be easy to understand, easy to analyse the outcome of the tests, easy to debug and trace.


Share a very useful test tool used by Cisco.


Developers, integration testers, system testers.