89 lines
4.2 KiB
Python
89 lines
4.2 KiB
Python
#!/usr/bin/env python3
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"""Exercise the real transaction fingerprint without changing persisted CRCs."""
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from pathlib import Path
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import shutil
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import subprocess
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import tempfile
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import unittest
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ROOT = Path(__file__).resolve().parents[1]
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FIXTURE = ROOT / "test/fixtures/contact_fingerprint/test.cpp"
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class ContactFingerprintTests(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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compiler = shutil.which("g++") or shutil.which("clang++")
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if compiler is None:
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raise unittest.SkipTest("host C++ compiler required")
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cls.work = tempfile.TemporaryDirectory(prefix="mesh-contact-fingerprint-")
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cls.binaries = {}
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source = (ROOT / "src/helpers/ContactFileTransaction.h").read_text(encoding="ascii")
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# Replay the old production accumulators as an exact-negative control.
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legacy = source
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for call in ("updateCRC32C(_crc,", "updateCRC32C(_verify_crc,"):
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if legacy.count(call) != 1:
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raise AssertionError("missing transaction fingerprint call: " + call)
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legacy = legacy.replace(call, call.replace("updateCRC32C", "storage::updateCRC32"))
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for platform in ("ESP32_PLATFORM", "RP2040_PLATFORM"):
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for old_ieee, header in ((False, source), (True, legacy)):
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work = Path(cls.work.name) / (platform + ("-ieee" if old_ieee else "-crc32c"))
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work.mkdir()
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header = header.replace('#include "IdentityStore.h"',
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'#include <helpers/IdentityStore.h>').replace(
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'#include "PersistentStoreFormat.h"', '#include <helpers/PersistentStoreFormat.h>')
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(work / "transaction_under_test.h").write_text(header, encoding="ascii")
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binary = work / "fixture"
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result = subprocess.run([
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compiler, "-std=c++17", "-O1", "-g", "-Wall", "-Wextra", "-Werror",
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"-Wno-sign-compare", "-fsanitize=address,undefined", "-fno-omit-frame-pointer",
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"-fno-sanitize-recover=all", "-fno-pie", "-no-pie", "-D" + platform,
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"-I", str(work), "-I", str(ROOT / "test/fixtures/radio_profiles/mocks"),
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"-I", str(ROOT / "src"), str(FIXTURE), "-o", str(binary),
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], capture_output=True, text=True, timeout=60)
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if result.returncode:
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cls.work.cleanup()
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raise AssertionError(result.stdout + result.stderr)
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cls.binaries[(platform, old_ieee)] = binary
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@classmethod
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def tearDownClass(cls):
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cls.work.cleanup()
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def scenario(self, mode, old_ieee=False, rejected=False):
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for platform in ("ESP32_PLATFORM", "RP2040_PLATFORM"):
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with self.subTest(platform=platform, old_ieee=old_ieee):
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result = subprocess.run([str(self.binaries[(platform, old_ieee)]), mode],
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capture_output=True, text=True, timeout=10)
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if rejected:
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self.assertNotEqual(result.returncode, 0, result.stdout)
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self.assertIn("progress == Progress::Failed", result.stderr)
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else:
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self.assertEqual(result.returncode, 0, result.stdout + result.stderr)
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def test_normal_and_chunked_images_keep_publication_cadence(self):
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self.scenario("healthy")
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def test_same_sized_valid_fcs1_stage_is_rejected_before_publication(self):
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self.scenario("stale_fcs1")
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def test_same_sized_valid_dtx1_stage_is_rejected_before_publication(self):
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self.scenario("stale_dtx1")
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def test_known_prepublication_failures_preserve_the_original(self):
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self.scenario("failures")
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def test_old_ieee_control_still_accepts_healthy_images_and_rejects_known_faults(self):
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self.scenario("healthy", old_ieee=True)
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self.scenario("failures", old_ieee=True)
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def test_old_ieee_control_is_caught_by_fcs1_regression(self):
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self.scenario("stale_fcs1", old_ieee=True, rejected=True)
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def test_old_ieee_control_is_caught_by_dtx1_regression(self):
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self.scenario("stale_dtx1", old_ieee=True, rejected=True)
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if __name__ == "__main__":
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unittest.main()
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