We have a system that has some bash scripts running besides Java code. Since we are trying to Test Everything That Could Possibly Break, and those bash scripts may break, we
I quite like shell2junit, a utility to generate JUnit-like output from Bash script tests. This is useful because the report generated can then be read by continuous integration systems, such as the JUnit plug-ins for Jenkins and Bamboo.
While shell2junit doesn't provide the comprehensive Bash scripting framework like shunit2, it does allow you have nice reporting of the test results.