testing: add comprehensive test suite for test-driven development #25

Merged
TapTap merged 9 commits from testing/comprehensive-test-suite into main 2026-07-20 17:05:44 +02:00

9 Commits

Author SHA1 Message Date
TapTap 3f73012b36 fix: address re-review — coverage build, chunk OOB guard, UBSan loads, srand scope
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- Remove -DSTRICT_WARNINGS=ON from coverage job (_FORTIFY_SOURCE + -O0 + -Werror fatal)
- Fix chunk.c metadata guard: peek at present flag before calling metadata_from_buf
  so the remaining_size check covers the full sizeof(int)+FILE_METADATA_WIRE_SIZE
- Fix chunk.c UBSan misaligned loads: use memcpy instead of *(size_t*)deref
- Move srand(42) to test_property() top level so all property tests are seeded
2026-07-20 14:53:39 +02:00
TapTap ed6242cfc5 ci: bump CI image to v9 with libclang-rt-18-dev
v8 had cached image without libclang-rt-18-dev on CI runner.
v9 forces a fresh pull and includes all fuzzer runtime libraries.
2026-07-20 14:44:41 +02:00
TapTap a27f13d657 fix: bake CI deps into Docker image, fix chunk use_metadata OOB
- Build and push fastsync-ci:v8 with lcov, valgrind, clang baked in
- Remove all apt-get install steps from CI (v8 has them pre-installed)
- Fix chunk.c use_metadata=true OOB: add remaining_size guard before
  metadata_from_buf reads past the buffer. The bug allowed network-facing
  chunk_deserialize to heap-buffer-overflow on crafted inputs.
- Also guard against unsigned underflow on remaining_size - sizeof(int)
2026-07-20 14:44:41 +02:00
TapTap eb8651e3d5 fix: address PR review — fuzz target fixes, UBSan, CI improvements
Critical fixes:
- Add missing #include <string.h> to 5 fuzz targets (wouldn't compile with GCC14+/Clang16+)
- Fix fuzz_metadata_from_buf.c OOB read: guard size >= sizeof(int) + FILE_METADATA_WIRE_SIZE
- Add Clang compiler check for ENABLE_FUZZ in CMakeLists.txt (fail fast at configure time)
- Add fuzz-build CI job (install clang, build all 6 fuzz targets with ENABLE_FUZZ=ON)

Warning fixes:
- Add UBSan to sanitizer CI matrix (address + undefined)
- Remove tautological test_property_glob_consistency (pure/deterministic function)
- Use fixed seed srand(42) instead of srand(time(NULL)) for reproducible property tests
- Add valid-header + truncated-instructions delta robustness test (exercises instruction-loop error paths)
- Fix lcov --remove to exclude '*/_deps/*' (xxhash coverage pollution)
- Add comment explaining FASTSYNC_UNDER_VALGRIND skip in test_file.c
- Update .gitignore for build-*/ directories
2026-07-20 14:44:41 +02:00
TapTap e9ab84b5ea ci: fix coverage and valgrind jobs, skip fork tests under valgrind
- Install lcov in coverage job (not in fastsync-ci:v7)
- Use lcov 2.x compatible flags (--branch-coverage instead of --rc)
- Remove unused xxhash exclude pattern that lcov 2.x rejects
- Install valgrind in valgrind job
- Skip fork-based file tests under valgrind (pipe timing issues)
- Add FASTSYNC_UNDER_VALGRIND env var for test skip detection
- Move cleanup before assertions in fork tests to prevent leaks
- Add coverage.info to .gitignore
2026-07-20 14:44:41 +02:00
TapTap 7c6e69ad81 ci: install lcov and valgrind in CI jobs
The fastsync-ci:v7 container does not include lcov or valgrind.
Add apt-get install steps to the coverage and valgrind jobs.

Also update lcov flags for lcov 2.x compatibility:
--rc lcov_branch_coverage=1 -> --branch-coverage
2026-07-20 14:44:41 +02:00
TapTap 66d994f01b fix: resolve cppcheck warnings in new test files
- Remove unused ConsumerCtx struct in test_stress.c
- Add const qualifiers to variables only checked for NULL
  in test_metadata.c, test_protocol.c, test_robustness.c
2026-07-20 14:44:35 +02:00
TapTap 44d0f99de9 style: fix clang-format violations in test files
Fix line wrapping and designated initializer alignment in
test_file.c, test_protocol.c, and test_stress.c to pass
CI clang-format check.
2026-07-20 14:44:35 +02:00
TapTap 8f77395b58 testing: add comprehensive test suite for test-driven development
Add unit tests for previously untested modules (protocol, data, metadata,
file, glob), robustness tests for deserialization of malformed inputs,
thread safety stress tests, property-based roundtrip tests, and 6 fuzz
targets. Update CI with CTest integration, coverage reporting, and
valgrind memory checking.

New test files:
- test_data.c: Data type lifecycle (5 tests)
- test_protocol.c: Protocol I/O roundtrips and error paths (9 tests)
- test_metadata.c: Metadata serialization roundtrips (6 tests)
- test_file.c: File operations and send/receive (12 tests)
- test_glob.c: Glob pattern matching (10 tests)
- test_robustness.c: Malformed input handling for chunk/delta/protocol (11 tests)
- test_stress.c: MPMC queue stress, backpressure, rapid create/destroy (3 tests)
- test_property.c: Compress, delta, chunk, glob roundtrip properties (4 tests)
- tests/fuzz/: 6 libFuzzer targets for deserialization functions

Extended existing tests:
- test_config.c: config_send/config_receive roundtrip via fork+pipe
- test_shared_utils.c: mkdir_r, glob_match, delete_extras

Infrastructure:
- CTest integration in CMakeLists.txt
- Coverage support (-DENABLE_COVERAGE=ON)
- Fuzz target support (-DENABLE_FUZZ=ON)
- CI: coverage, valgrind, address sanitizer jobs
- Fixed MPMC stress test race condition (cnd_signal -> cnd_broadcast)
2026-07-20 14:44:35 +02:00