"""Public CLI integration tests run through real subprocess entry points.""" import json import os from pathlib import Path import subprocess import sys import tempfile import unittest ROOT = Path(__file__).resolve().parents[1] def cli(*args, input=None): return subprocess.run([sys.executable, "-m", "qzguard", *args], cwd=ROOT, input=input, text=True, capture_output=True) class CliTests(unittest.TestCase): def test_help_version_demo_and_doctor(self): help_result = cli("--help") self.assertEqual(help_result.returncode, 0, help_result.stderr) self.assertIn("check", help_result.stdout) self.assertEqual(cli("--version").stdout.strip(), "1.0.0") for command in ("demo", "doctor"): result = cli(command, "--backend", "exact") self.assertEqual(result.returncode, 0, result.stderr) data = json.loads(result.stdout) self.assertEqual(data["status"], "ok") self.assertEqual(json.loads(cli("demo").stdout)["backend"], "exact") def test_single_stdin_exact_and_rational_details(self): data = {"value_lower": [0., 1.], "mass_lower": [1., 1.], "mass_upper": [1., 1.], "threshold": .9, "relation": ">="} result = cli("check", "--input", "-", "--witness", input=json.dumps(data)) self.assertEqual(result.returncode, 0, result.stderr) record = json.loads(result.stdout) self.assertEqual(record["backend"], "exact") self.assertEqual(record["guaranteed"], [False]) self.assertEqual(record["counterexample_exists"], [True]) self.assertIn("integer-exact", record["numerical_contract"]) self.assertEqual(record["witnesses"][0]["ratio"], {"numerator": "1", "denominator": "2"}) self.assertTrue(record["exact_details_requested"]) def test_stream_results_errors_and_output(self): with tempfile.TemporaryDirectory() as directory: directory = Path(directory) bank = directory / "bank.json" updates = directory / "updates.jsonl" output = directory / "output.jsonl" bank.write_text(json.dumps({"value_lower": [0., 1.]}), encoding="utf-8") updates.write_text('\n' + json.dumps({"id": "first", "mass_lower": [1., 100.], "mass_upper": [1., 1e6], "threshold": .9, "relation": ">="}) + '\n{"mass_lower":[0,0],"mass_upper":[1,1],"threshold":0}\n' + json.dumps({"id": "last", "mass_lower": [1., 1.], "mass_upper": [1., 1.], "threshold": .4}) + '\n', encoding="utf-8") result = cli("check", "--bank", str(bank), "--updates", str(updates), "--output", str(output)) self.assertEqual(result.returncode, 2) self.assertEqual(result.stdout, "") records = [json.loads(line) for line in output.read_text().splitlines()] self.assertEqual([r["status"] for r in records], ["ok", "error", "ok"]) self.assertEqual([r["line"] for r in records], [2, 3, 4]) self.assertEqual(records[0]["guaranteed"], [True]) self.assertEqual(records[-1]["guaranteed"], [False]) self.assertIn("processed 3 updates; 1 errors", result.stderr) self.assertNotIn("Traceback", result.stderr) def test_stream_stdin(self): with tempfile.TemporaryDirectory() as directory: bank = Path(directory) / "bank.json" bank.write_text('{"value_lower":[1]}', encoding="utf-8") result = cli("check", "--bank", str(bank), "--updates", "-", input='{"mass_lower":[1],"mass_upper":[2],"threshold":1}\n') self.assertEqual(result.returncode, 0, result.stderr) self.assertEqual(json.loads(result.stdout)["guaranteed"], [True]) def test_strict_numbers_fields_and_shape(self): fixtures = [ '{"value_lower":[NaN],"mass_lower":[1],"mass_upper":[1],"threshold":0}', '{"value_lower":[1e999],"mass_lower":[1],"mass_upper":[1],"threshold":0}', '{"value_lower":[1],"value_lower":[2],"mass_lower":[1],"mass_upper":[1],"threshold":0}', '{"value_lower":[true],"mass_lower":[1],"mass_upper":[1],"threshold":0}', '{"value_lower":[1],"mass_lower":["1"],"mass_upper":[1],"threshold":0}', '{"value_lower":[1],"mass_lower":[1],"mass_upper":[1],"threshold":0,"typo":0}', '{"value_lower":[[1,2]],"mass_lower":[1],"mass_upper":[1],"threshold":[0]}', ] for fixture in fixtures: result = cli("check", "--input", "-", input=fixture) self.assertEqual(result.returncode, 2, fixture) self.assertEqual(result.stdout, "") self.assertNotIn("Traceback", result.stderr) def test_preflight_does_not_destroy_output(self): with tempfile.TemporaryDirectory() as directory: output = Path(directory) / "output.jsonl" output.write_text("keep me", encoding="utf-8") result = cli("check", "--bank", str(Path(directory)/"missing.json"), "--updates", "-", "--output", str(output), input="") self.assertEqual(result.returncode, 2) self.assertEqual(output.read_text(), "keep me") result = cli("check", "--input", "-", "--output", str(output), input="{}") self.assertEqual(result.returncode, 2) self.assertEqual(output.read_text(), "keep me") def test_output_cannot_overwrite_input(self): with tempfile.TemporaryDirectory() as directory: source = Path(directory) / "input.json" original = '{"value_lower":[1],"mass_lower":[1],"mass_upper":[1],"threshold":0}' source.write_text(original, encoding="utf-8") result = cli("check", "--input", str(source), "--output", str(source)) self.assertEqual(result.returncode, 2) self.assertEqual(source.read_text(), original) def test_output_cannot_overwrite_hardlink_alias(self): with tempfile.TemporaryDirectory() as directory: source = Path(directory) / "input.json" alias = Path(directory) / "alias.json" original = '{"value_lower":[1],"mass_lower":[1],"mass_upper":[1],"threshold":0}' source.write_text(original, encoding="utf-8") try: os.link(source, alias) except OSError as exc: self.skipTest(f"hard links unavailable: {exc}") result = cli("check", "--input", str(source), "--output", str(alias)) self.assertEqual(result.returncode, 2) self.assertEqual(source.read_text(), original) self.assertEqual(alias.read_text(), original) def test_missing_update_option_no_traceback(self): result = cli("check", "--bank", "anything.json") self.assertEqual(result.returncode, 2) self.assertIn("--updates", result.stderr) self.assertNotIn("Traceback", result.stderr) if __name__ == "__main__": unittest.main()