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Re^2: proving something other than perl

by Tanktalus (Canon)
on Jan 24, 2007 at 19:16 UTC ( #596314=note: print w/replies, xml ) Need Help??


in reply to Re: proving something other than perl
in thread proving something other than perl

The top part is the part where I explain how I got here. Unfortunately, that may be overemphasising that part, as my real question is: anyone who has started to use the "prove" tool (or, really, any of the Test::* namespace) to test stuff that isn't perl, do you have insight on how to approach this? Is there a particular Test::* module that is well-suited? Are there gotchas to using the Test::* modules in such a way? Obviously, things like "require_ok" or "isa_ok" or "can_ok" are useless. I'm more looking for "don't rely on XYZ to work against qx//" or "Check out Foo::Bar - its Quux function can really help with ..." or things like that.

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Re^3: proving something other than perl
by jfroebe (Parson) on Jan 24, 2007 at 19:21 UTC
Re^3: proving something other than perl
by sgt (Deacon) on Jan 24, 2007 at 20:28 UTC

    Strictly speaking you can "prove" using some wrapped up TAP output! for example a file can be sent (system perl, curl, sftp etc..) to any prove-abled server (if you don't want to speak apache, Net::Server or HTTP::Server::Lite with a trivial CGI comes to mind).

    Now about the OP question: build systematically wrappers for processes-to-be (created from C, C++, java -- for java you often need a wrapper anyway for classpath and libs) and you use the OS (i.e the shell exit status). It is not really tough to generate TAP output, is it? (tee is useful). For a given process, I keep the output of one "correct" run in one file, and compare subsequent ones with that reference file. Some of the basic infrastructure can be automated and some templates are useful (output files can be generated by perl in another machine if you like, but with a decent shell, shell eval is your friend!)

    Welcome to the world of "external testing" it is much harder than the other one so that's why you don't see much of it ;)
    a good shell is ksh that you can get from http://www.research.att.com/sw/download/, grab ksh93s for all the platforms that lack a decent shell; for cygwin (windows!) I recommend using still ksh93r (as there are problems that I will soon report to the ast-users list) and by the way, to use ksh on cygwin you don't need the whole cygwin stuff just the cygwin1.dll and maybe a few commands like curl and tar). So you make your little shell tarball where you don't have a decent shell. Also the perl that comes with the system can obviously be useful and can COOPERATE HEALTHILY with the shell and other commands, no? ;)

    % stephan@armen (/home/stephan) % % cygcheck /usr/ast-ksh93r/arch/cygwin.i386/bin/ksh93r.exe C:/cygwin/usr/ast-ksh93r/arch/cygwin.i386/bin/ksh93r.exe C:\cygwin\bin\cygwin1.dll C:\WINDOWS\system32\ADVAPI32.DLL C:\WINDOWS\system32\ntdll.dll C:\WINDOWS\system32\KERNEL32.dll C:\WINDOWS\system32\RPCRT4.dll C:/cygwin/usr/ast-ksh93r/arch/cygwin.i386/bin\cygshell11.dll C:/cygwin/usr/ast-ksh93r/arch/cygwin.i386/bin\cygast54.dll C:/cygwin/usr/ast-ksh93r/arch/cygwin.i386/bin\cygcmd12.dll C:/cygwin/usr/ast-ksh93r/arch/cygwin.i386/bin\cygdll10.dll
    hth --stephan
    the un*x way? cooperation!
Re^3: proving something other than perl
by Solo (Deacon) on Jan 24, 2007 at 19:27 UTC
    test stuff that isn't perl

    Apache::Test is the biggest example that comes to mind. I've also used Test::Output, but not in a while.

    --Solo

    --
    You said you wanted to be around when I made a mistake; well, this could be it, sweetheart.
Re^3: proving something other than perl
by petdance (Parson) on Jan 26, 2007 at 17:24 UTC
    The reason I wrote prove was so that I could test PHP scripts along with the rest of my Perl programs. The key is to create a Test::Harness::Strap module that does the right thing, and to load that strap with the --strap argument on the command-line.

    I know it's hardly a complete answer, but I hope it gets you pointed in the right direction.

    xoxo,
    Andy

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