[Qemu-devel] [PATCH V5 0/5] tests: Add the image fuzzer with qcow2 support

[Maria Kustova]

This patch series introduces the image fuzzer, a tool for stability and
reliability testing.
Its approach is to run large amount of tests in background. During every test a
program (e.g. qemu-img) is called to read or modify an invalid test image.
A test image has valid inner structure defined by its format specification with
some fields having random invalid values.

Patch 1 contains documentation for the image fuzzer, patch 2 is the test runner
and remaining ones relate to the image generator for qcow2 format.

This patch series was created for the 'block-next' branch.

v4 -> v5:
Runner:
 * Added a warning message if a backing file failed to be created (based on
   the review of Fam Zheng)
 * Back up a test image before every test command
 * Fixed always logged messages of a program under test
 * Added a warning message if a wrong name of a program under test is specified
 * Made offset and length qemu-io arguments multiple of a sector size
 * Print all errors to stderr

Layout:
 * Fixed estimation of the feature name table length

Fuzz:
 * Added fuzzing vector for 8bit values

Overall:
 * Missed white spaces (based on reviews of Fam Zheng and Stefan Hajnoczi)
 * Simplified attribute calls (based on the review of Stefan Hajnoczi)

Maria Kustova (5):
  docs: Specification for the image fuzzer
  runner: Tool for fuzz tests execution
  fuzz: Fuzzing functions for qcow2 images
  layout: Generator of fuzzed qcow2 images
  package: Public API for image-fuzzer/runner/runner.py

 tests/image-fuzzer/docs/image-fuzzer.txt | 239 ++++++++++++++++++
 tests/image-fuzzer/qcow2/__init__.py     |   1 +
 tests/image-fuzzer/qcow2/fuzz.py         | 327 +++++++++++++++++++++++++
 tests/image-fuzzer/qcow2/layout.py       | 369 ++++++++++++++++++++++++++++
 tests/image-fuzzer/runner/runner.py      | 405 +++++++++++++++++++++++++++++++
 5 files changed, 1341 insertions(+)
 create mode 100644 tests/image-fuzzer/docs/image-fuzzer.txt
 create mode 100644 tests/image-fuzzer/qcow2/__init__.py
 create mode 100644 tests/image-fuzzer/qcow2/fuzz.py
 create mode 100644 tests/image-fuzzer/qcow2/layout.py
 create mode 100755 tests/image-fuzzer/runner/runner.py

-- 
1.9.3