54 lines
1.9 KiB
Python
54 lines
1.9 KiB
Python
"""Regression check: our SAB output must be byte-identical to sedonac.exe's.
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Usage: python verify.py [sedona_home]
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"""
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import os, sys, subprocess, tempfile, shutil
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import sab
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HERE = os.path.dirname(os.path.abspath(__file__))
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HOME = sys.argv[1] if len(sys.argv) > 1 else os.path.join(os.path.dirname(HERE), "sedona")
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def check(sax, reference=None):
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"""Encode `sax` with sab.py; compare against `reference` or a fresh sedonac run."""
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tmp = tempfile.mkdtemp()
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try:
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if reference is None:
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work = os.path.join(tmp, os.path.basename(sax))
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shutil.copy(sax, work)
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exe = os.path.join(HOME, "bin", "sedonac.exe")
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r = subprocess.run([exe, work], capture_output=True, text=True)
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if r.returncode != 0:
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print(" sedonac failed:\n" + r.stdout + r.stderr)
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return False
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reference = os.path.splitext(work)[0] + ".sab"
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mine = os.path.join(tmp, "mine.sab")
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sab.encode(sax, HOME, mine)
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a = open(reference, "rb").read()
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b = open(mine, "rb").read()
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name = os.path.basename(sax)
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if a == b:
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print(" PASS %-28s %d bytes identical" % (name, len(a)))
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return True
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diffs = [i for i in range(min(len(a), len(b))) if a[i] != b[i]]
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print(" FAIL %-28s sedonac=%d ours=%d, %d byte diffs" % (name, len(a), len(b), len(diffs)))
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if diffs:
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i = diffs[0]
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lo, hi = max(0, i - 12), i + 12
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print(" first diff at offset %d" % i)
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print(" sedonac %s" % a[lo:hi].hex())
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print(" ours %s" % b[lo:hi].hex())
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return False
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finally:
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shutil.rmtree(tmp, ignore_errors=True)
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if __name__ == "__main__":
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print("sedona home: %s" % HOME)
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ok = check(os.path.join(HERE, "test_normal.sax"),
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os.path.join(HERE, "test_normal_sedonac.sab"))
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sys.exit(0 if ok else 1)
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