Python script using pexpect to test tinydtls client and server in RIOT using examples/dtls-echo example application. There are still lots of hardcoded variables used.

iterate-tinydtls-commits

#!/bin/bash

# specify paths to tinydtls and RIOT repo
TINYDTLS_REPO=~/git/tinydtls
RIOT_REPO=~/git/RIOT-OS/RIOT

# get all commits FROM tinydtls repo since last known good commit
cd $TINYDTLS_REPO
git checkout develop &> /dev/null
hashes=$(git rev-list --reverse dcac93f1b38e74f0a57b5df47647943f3df005c2^1..HEAD)

cd $RIOT_REPO/examples/dtls-echo

for hash in $hashes
do
    sed -i "s/PKG_VERSION=.*/PKG_VERSION=$hash/" ../../pkg/tinydtls/Makefile
    ./test-send.py &> /dev/null
    echo $hash $?
done

tinydtls-riot-test.py

#!/usr/bin/env python3

import sys
import os
import pexpect
import time
import signal

serverIP = "fe80::20c3:beff:fe9b:5772"
env = os.environ

# build
pexpect.run("make", env=env)

# server setup
env = os.environ
env.update({"PORT": "tap0"})

server_logfile = open("server.log", "w")
server = pexpect.spawnu('make term',
                        env=env,
                        codec_errors='replace',
                        echo=False, timeout=10,
                        logfile=server_logfile
                        )

# client setup
env = os.environ
env.update({"PORT": "tap1"})

client_logfile = open("client.log", "w")
client = pexpect.spawnu('make term',
                        env=env,
                        codec_errors='replace',
                        echo=False, timeout=10,
                        logfile=client_logfile
                        )
time.sleep(1)

# start dtls server
server.sendline("dtlss start")

# send dtls packet from client
client.sendline("dtlsc " + serverIP + " TEST")

time.sleep(3)

client.expect("Client: got DTLS Data App")
server.expect("Server: got DTLS Data App")

time.sleep(1)


try:
    os.killpg(os.getpgid(server.pid), signal.SIGKILL)
    os.killpg(os.getpgid(client.pid), signal.SIGKILL)
except ProcessLookupError:
    print("Process already stopped")

server.close()
client.close()