bashcov and bashunit - unit testing for bash

This repository contains two tools. bashcov is a generic execution coverage tracer for bash. It can be used to examine code coverage of arbitrary script executions. bashunit executes unit tests from files matching *_test.sh, and generates coverage analysis for all the tested scripts.

bashunit - unit testing for bash scripts

Using bashunit you can create practical unit tests for bash programs. Using built-in coverage analysis and convention-based code organization, you can incrementally integrate test code into an existing shell project.

Please review the unit tests for bashcov as an example.

bashcov - execution coverage for bash scripts

Using bashcov you can run a bash script and measure execution coverage. This can be useful for writing and measuring unit tests for bash programs.

Example:

Using bashcov on itself, to print the help message and quit:

./bashcov ./bashcov

This executes bashcov under a trace, processes the trace file and creates bashcov.coverage. In general all executed (or sourced and executed) scripts are processed. The resulting coverage analysis is written to bashcov.coverage and is modeled after gcov output.

For the example above, with most of the script body and license omitted, the output looks as follows. The integer indicates the number of times a given line was executed.

  -: #!/bin/bash
  Licence text omitted for brevity
  -: 
  1: declare -A -i cov_files  # set of files encountered
  1: declare -A -i cov_lines  # set of file:line pairs executed
  -: 
  -: main() {
  1: 	if [ $# -eq 0 ]; then
  1: 		echo "usage: bashcov SCRIPT [ARGUMENTS]"
  1: 		exit 0
  -: 	fi
  Body of "main", omitted for brevity
  -: }
  -: 
  1: main "$@"