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Description: heuristic tool to minimize failure-inducing files for debugging
Delta assists you in minimizing "interesting" files subject to a test of
their "interestingness". A common such situation is when attempting to
isolate a small failure-inducing substring of a large input that causes
your program to exhibit a bug.
.
Delta is typically used during debugging and software testing to reduce
large or complex input files into smaller test cases that still reproduce
a specific behavior, such as a crash, incorrect output, or assertion
failure. By repeatedly removing parts of the input and checking whether
the file remains “interesting” (according to a user-supplied test), Delta
helps identify the minimal input needed to trigger the problem.
.
This is especially useful when reporting bugs upstream or in the Debian BTS,
as a minimized test case is easier to analyze, faster to process, and more
likely to be accepted and fixed.
.
Examples of practical use cases:
- Reducing a large input file that crashes a compiler or interpreter to
the smallest file that still crashes it.
- Minimizing a test file generated by a fuzzer so it can be added to a
regression test suite.
- Isolating the exact fragment of a configuration or data file that causes
a program to misbehave.
.
This package provides the following executables: singledelta, multidelta
and topformflat. multidelta performs delta debugging across multiple input
files, minimizing them together while preserving a user-defined
"interesting" condition. topformflat normalizes structured input files into
a flat canonical form (e.g. by removing indentation and layout variations)
for use with delta debugging tools.
Description: Heuristic minimizer of interesting files
Delta assists you in minimizing "interesting" files subject to a test of
their "interestingness". A common such situation is when attempting to
isolate a small failure-inducing substring of a large input that causes
your program to exhibit a bug.
--- 320153 Thu Jan 1 00:00:00 1970
+++ 59929 Thu Jan 1 00:00:00 1970
@@ -1,31 +1,5 @@
-heuristic tool to minimize failure-inducing files for debugging
+Heuristic minimizer of interesting files
Delta assists you in minimizing "interesting" files subject to a test of
their "interestingness". A common such situation is when attempting to
isolate a small failure-inducing substring of a large input that causes
your program to exhibit a bug.
- .
- Delta is typically used during debugging and software testing to reduce
- large or complex input files into smaller test cases that still reproduce
- a specific behavior, such as a crash, incorrect output, or assertion
- failure. By repeatedly removing parts of the input and checking whether
- the file remains “interesting” (according to a user-supplied test), Delta
- helps identify the minimal input needed to trigger the problem.
- .
- This is especially useful when reporting bugs upstream or in the Debian BTS,
- as a minimized test case is easier to analyze, faster to process, and more
- likely to be accepted and fixed.
- .
- Examples of practical use cases:
- - Reducing a large input file that crashes a compiler or interpreter to
- the smallest file that still crashes it.
- - Minimizing a test file generated by a fuzzer so it can be added to a
- regression test suite.
- - Isolating the exact fragment of a configuration or data file that causes
- a program to misbehave.
- .
- This package provides the following executables: singledelta, multidelta
- and topformflat. multidelta performs delta debugging across multiple input
- files, minimizing them together while preserving a user-defined
- "interesting" condition. topformflat normalizes structured input files into
- a flat canonical form (e.g. by removing indentation and layout variations)
- for use with delta debugging tools.