Emily Boudreaux
cb20faeb3d
The test suite is extensive. Note that LLMs were used to aid in the development of the test suite. All LLM generated code was manually reviewed.
54 lines
2.3 KiB
Python
54 lines
2.3 KiB
Python
"""Verify the public format through an independent Python implementation."""
|
|
|
|
import importlib.util
|
|
import math
|
|
from pathlib import Path
|
|
import struct
|
|
import subprocess
|
|
import sys
|
|
import tempfile
|
|
|
|
|
|
def main():
|
|
"""Check native/text equality and CSV output using files produced by C++."""
|
|
sys.dont_write_bytecode = True
|
|
writer, reader_path = sys.argv[1:]
|
|
spec = importlib.util.spec_from_file_location("serif_archive", reader_path)
|
|
module = importlib.util.module_from_spec(spec)
|
|
spec.loader.exec_module(module)
|
|
with tempfile.TemporaryDirectory(prefix="serif-python-reader-") as directory:
|
|
subprocess.run([writer, directory], check=True)
|
|
representations = []
|
|
for encoding in ("binary", "text"):
|
|
path = Path(directory) / f"{encoding}.serif"
|
|
with module.Archive(path) as archive:
|
|
values = archive.read("values")
|
|
assert len(values) == 5
|
|
assert math.copysign(1.0, values[0]) < 0
|
|
assert values[1] == 1.2345678901234567
|
|
assert values[2] == float.fromhex("0x0.0000000000001p-1022")
|
|
assert values[3] == math.inf
|
|
assert struct.pack("<d", values[4]).hex() == "bc9a78563412f87f"
|
|
assert archive.read("integers") == [-(1 << 63), (1 << 63) - 1]
|
|
assert archive.read("label") == 'ξ\n"quote"\\end'
|
|
assert archive.read("empty") == []
|
|
assert archive.read("provenance/author") == "Cross-language regression"
|
|
representations.append(struct.pack("<5d", *values))
|
|
csv = subprocess.run([sys.executable, reader_path, str(path), "--read", "values", "--csv"], check=True, capture_output=True, text=True).stdout
|
|
assert csv.startswith("index,value\n0,-0.0\n")
|
|
damaged = bytearray(path.read_bytes())
|
|
damaged[550] ^= 1
|
|
path.write_bytes(damaged)
|
|
try:
|
|
module.Archive(path)
|
|
except ValueError as error:
|
|
assert "ledger" in str(error)
|
|
else:
|
|
raise AssertionError("Corrupted ledger was accepted")
|
|
assert representations[0] == representations[1]
|
|
print("Python reader: binary/text exact values, provenance, CSV and corruption checks passed")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|