Find Way to Mock Out Util Without Code Change

[ReedClanton]

Description

Currently the only way I've found to mock out util (constants, globals, helper functions, etc) when running shellspec tests is to add the bellow block to the top of the primary shell script:

# Needed so unit tests can mock out sourced file(s).
if [ "$(type -t inScriptSource)" = "" ]; then
	inScriptSource() { . "${@}"; }
fi

Then use inScriptSource() in place of . when sourcing main.sh.

Example

See the output() function (src/shell/functions/output/output.sh).

DOD

Mock out util contents without having to change CUT.