If you are brave enough to use the cli you can do this.
cd /tmp
wget https://install.speedtest.net/app/cli/ookla-speedtest-1.2.0-linux-$(uname -m).tgz
tar -xvzf ookla-speedtest-*.tgz
mv speedtest /usr/bin/
chmod +x /usr/bin/speedtest
speedtest
Just run these commands in order.