65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
#!/usr/bin/env python3
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"""Regression check for discarded expression Value cleanup under LeakSanitizer."""
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from pathlib import Path
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import os
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import subprocess
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import sys
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import tempfile
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ROOT = Path(__file__).resolve().parent.parent
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def main() -> int:
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if os.name == "nt":
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print("SKIP: LeakSanitizer check is POSIX-only")
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return 0
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with tempfile.TemporaryDirectory(prefix="claro-expression-cleanup-") as tmp:
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tmp_path = Path(tmp)
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binary = tmp_path / "claro-lsan"
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script = tmp_path / "expressions.claro"
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script.write_text(
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'SET value TO "seed"\n'
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+ ''.join(
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'SET value TO "a" + "b"\n'
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'SET answer TO 1 + 2 * 3\n'
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for _ in range(2000)
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)
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+ 'SAY value\n',
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encoding="utf-8",
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)
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build = subprocess.run(
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[
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"gcc", "-std=c99", "-O0", "-g",
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"-fsanitize=address,undefined",
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"src/claro.c", "-o", str(binary), "-lm",
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], cwd=ROOT, text=True, capture_output=True,
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)
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if build.returncode:
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print(build.stdout, end="")
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print(build.stderr, end="", file=sys.stderr)
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return build.returncode
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run = subprocess.run(
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[str(binary), str(script)], cwd=ROOT, text=True,
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capture_output=True,
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env={**os.environ, "ASAN_OPTIONS": "detect_leaks=1"},
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)
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if run.returncode:
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print("FAIL: expression temporary cleanup probe failed")
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print(run.stdout, end="")
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print(run.stderr, end="", file=sys.stderr)
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return 1
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if "LeakSanitizer" in run.stderr or "SUMMARY:" in run.stderr:
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print("FAIL: discarded expression values still leak")
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print(run.stderr, end="", file=sys.stderr)
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return 1
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if run.stdout != "ab\n":
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print("FAIL: expression cleanup probe produced the wrong output")
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print(run.stdout, end="", file=sys.stderr)
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return 1
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print("PASS: discarded expression values are released")
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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