[gs-bugs] [Bug 691391] New: Enhancement: testcase minimization tool for Postscript

[bugzilla-daemon at ghostscript.com]

http://bugs.ghostscript.com/show_bug.cgi?id=691391

           Summary: Enhancement: testcase minimization tool for Postscript
           Product: Ghostscript
           Version: HEAD
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P4
         Component: Test Framework
        AssignedTo: ray.johnston at artifex.com
        ReportedBy: daw-misc at taverner.cs.berkeley.edu
         QAContact: gs-bugs at ghostscript.com
   Estimated Hours: 0.0


Created an attachment (id=6373)
 --> (http://bugs.ghostscript.com/attachment.cgi?id=6373)
Tool for minimizing Postscript testcases

I built a prototype tool for minimizing Postscript test cases, namely,
Postscript files that trigger some kind of crash in ghostscript.  I thought I'd
share the tool with you, in case you find it useful.  See attachment for
documentation and information about how to use it.  Feel free to use it if you
like.

Note that this is very poorly tested, so if it fails, I won't be terribly
surprised.  It is based upon delta debugging (http://delta.tigris.org/), but
with some Postscript-specific heuristic knowledge built in.  Ghostscript
developers may be able to build a much better version, if this does prove
useful.

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