I've been using Test::Simple, Test::More, and the 'prove' command for writing/running test cases for my modules. But what is the Best Practice for testing end-user facing scripts? Should I write test cases which calls foo.pl via system()/open()/etc, feed it input, and see what comes out with regular expressions?
Assume for the sake of argument that foo.pl operates in a unix-y way (ie, not interactive, takes in some input from stdin, does magic, and writes output to stdout).
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