bashcov container test case

Dockerfile

FROM ubuntu:18.04

RUN apt-get update
RUN apt-get install -y ruby
RUN gem install bashcov

ADD /script.sh /root/
CMD /root/script.sh

script.sh

#!/bin/bash
set -euxo pipefail

cd /root
mkdir covtest
cd covtest
echo 'echo Hello' > test.sh
bashcov test.sh