mirror of
https://github.com/ruvnet/RuView.git
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363 lines
18 KiB
Python
363 lines
18 KiB
Python
"""Synthetic intake boundary tests. No captured CSI enters the repository."""
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import io
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import hashlib
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import os
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import zipfile
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import json
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import tempfile
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import unittest
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from contextlib import contextmanager
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from unittest.mock import patch
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from pathlib import Path
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import sys
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sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
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import numpy as np
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from scipy.io import savemat
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from csi_training import espfi
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class EspfiTests(unittest.TestCase):
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def mat(self, x):
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b = io.BytesIO()
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savemat(b, {'CSIamp': x})
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return b.getvalue()
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def test_pool_and_orientation(self):
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x = np.arange(950 * 52, dtype=np.float64).reshape(950, 52)
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expected = x.reshape(190, 5, 52).mean(1).T.astype(np.float32)
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np.testing.assert_array_equal(espfi.decode_amplitude(self.mat(x)), expected)
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np.testing.assert_array_equal(espfi.decode_amplitude(self.mat(x.T)), expected)
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def test_reject_nonfinite_negative_complex_shape(self):
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for x in (np.full((950, 52), np.nan), -np.ones((950, 52)),
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np.ones((950, 52), dtype=complex), np.ones((2, 52))):
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with self.assertRaises(ValueError):
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espfi.decode_amplitude(self.mat(x))
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def test_identity_and_traversal(self):
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self.assertEqual(espfi.parse_identity('room/mat/4-8-7-10.mat'), (4, 8, 7, 10))
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for name in ('../1-1-1-1.mat', '/1-1-1-1.mat', '1-9-1-1.mat',
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'1-1-1-11.mat', 'foo\\1-1-1-1.mat'):
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with self.assertRaises(ValueError):
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espfi.parse_identity(name)
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def test_joint_split_is_disjoint(self):
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groups = {s: (set(), set()) for s in ('train', 'validation', 'test')}
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counts = dict.fromkeys(groups, 0)
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for r in range(1, 5):
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for p in range(1, 9):
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split = espfi.split_identity((r, p, 1, 1))
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if split:
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groups[split][0].add(r)
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groups[split][1].add(p)
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counts[split] += 70
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self.assertEqual(counts, {'train': 840, 'validation': 70, 'test': 70})
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for a, b in [('train', 'validation'), ('train', 'test'), ('validation', 'test')]:
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self.assertFalse(groups[a][0] & groups[b][0])
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self.assertFalse(groups[a][1] & groups[b][1])
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def test_archive_pin_rejects_before_parsing(self):
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with tempfile.TemporaryDirectory() as tmp:
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p = Path(tmp) / 'source.rar'
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p.write_bytes(b'not a dataset')
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with self.assertRaisesRegex(ValueError, 'pinned'):
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espfi.prepare(p, Path(tmp) / 'out')
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def fixture(self, tmp):
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records, arrays = [], {}
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for split in ('train', 'validation', 'test'):
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ids = [(r, p, a, t) for r in range(1, 5) for p in range(1, 9)
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for a in range(1, 8) for t in range(1, 11)
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if espfi.split_identity((r, p, a, t)) == split]
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arrays[split + '_identity'] = np.array(ids, dtype=np.int64)
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arrays[split + '_y'] = np.array([i[2] - 1 for i in ids], dtype=np.int64)
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arrays[split + '_x'] = np.stack([np.full((52, 10),
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i[0] * 10000 + i[1] * 1000 + i[2] * 100 + i[3], dtype=np.float32) for i in ids])
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selected = {tuple(i): hashlib.sha256(x.tobytes()).hexdigest()
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for split in ('train', 'validation', 'test')
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for i, x in zip(arrays[split + '_identity'], arrays[split + '_x'])}
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for r in range(1, 5):
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for p in range(1, 9):
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for a in range(1, 8):
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for t in range(1, 11):
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i = (r, p, a, t)
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records.append({'identity': i, 'split': espfi.split_identity(i),
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'signal_sha256': selected.get(i, hashlib.sha256(str(i).encode()).hexdigest())})
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npz = Path(tmp) / 'amplitudes.npz'
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np.savez_compressed(npz, **arrays)
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meta = dict(schema_version=1, dataset=espfi.DATASET, classes=espfi.CLASSES, source_revision=espfi.REVISION,
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source_url=espfi.SOURCE_URL, archive_sha256=espfi.ARCHIVE_SHA256,
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license='CC-BY-4.0', split_policy='joint_room_subject_intersection_v1',
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temporal_mean_pool=95, window_samples=10, records=records,
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counts={s: len(arrays[s + '_y']) for s in ('train', 'validation', 'test')},
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npz=npz.name, npz_sha256=espfi.digest(npz))
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manifest = Path(tmp) / 'manifest.json'
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manifest.write_text(json.dumps(meta))
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return manifest, npz, arrays, meta
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def test_loader_signal_binding_and_duplicate_identity(self):
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with tempfile.TemporaryDirectory() as tmp:
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manifest, npz, arrays, meta = self.fixture(tmp)
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parts, _ = espfi.load_dataset(manifest)
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self.assertEqual(len(parts['train']['y']), 840)
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arrays['train_identity'][1] = arrays['train_identity'][0]
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np.savez_compressed(npz, **arrays)
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meta['npz_sha256'] = espfi.digest(npz)
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manifest.write_text(json.dumps(meta))
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with self.assertRaisesRegex(ValueError, 'provenance'):
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espfi.load_dataset(manifest)
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def test_expected_manifest_hash_checked_before_bundle_decode(self):
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with tempfile.TemporaryDirectory() as tmp:
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manifest, _, _, _ = self.fixture(tmp)
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expected = espfi.digest(manifest)
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_, provenance = espfi.load_dataset(
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manifest, expected_manifest_sha256=expected)
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self.assertEqual(provenance['manifest_sha256'], expected)
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manifest.write_bytes(manifest.read_bytes() + b' ')
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with patch('csi_training.espfi.zipfile.ZipFile') as archive, \
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patch('csi_training.espfi.np.load') as load:
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with self.assertRaisesRegex(ValueError, 'changed'):
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espfi.load_dataset(manifest, expected_manifest_sha256=expected)
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archive.assert_not_called();load.assert_not_called()
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def test_expected_manifest_hash_rejects_symlink_before_bundle_decode(self):
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with tempfile.TemporaryDirectory() as tmp:
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manifest, _, _, _ = self.fixture(tmp)
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expected = espfi.digest(manifest)
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link = Path(tmp) / 'manifest-link.json'
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link.symlink_to(manifest)
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with patch('csi_training.espfi.np.load') as load:
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with self.assertRaises(OSError):
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espfi.load_dataset(link, expected_manifest_sha256=expected)
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load.assert_not_called()
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def test_confirmed_bundle_digest_mismatch_stops_before_decode(self):
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with tempfile.TemporaryDirectory() as tmp:
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manifest, _, _, meta = self.fixture(tmp)
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meta['npz_sha256'] = '0' * 64
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manifest.write_text(json.dumps(meta))
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expected = espfi.digest(manifest)
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with patch('csi_training.espfi.zipfile.ZipFile') as archive, \
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patch('csi_training.espfi.np.load') as load:
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with self.assertRaisesRegex(ValueError, 'modified'):
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espfi.load_dataset(manifest, expected_manifest_sha256=expected)
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archive.assert_not_called();load.assert_not_called()
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def test_confirmed_snapshot_survives_path_swap(self):
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if os.name != 'posix':
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self.skipTest('POSIX rename semantics required')
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with tempfile.TemporaryDirectory() as tmp:
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manifest, npz, _, meta = self.fixture(tmp)
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expected = espfi.digest(manifest)
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original_npz_sha256 = meta['npz_sha256']
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replacement = Path(tmp) / 'replacement.npz'
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replacement.write_bytes(b'unverified replacement')
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original_copy = espfi._copy_bundle
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def copy_then_swap(source, snapshot, size):
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value = original_copy(source, snapshot, size)
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replacement.replace(npz)
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return value
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with patch('csi_training.espfi._copy_bundle', side_effect=copy_then_swap):
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parts, provenance = espfi.load_dataset(
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manifest, expected_manifest_sha256=expected)
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self.assertEqual(len(parts['train']['y']), 840)
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self.assertEqual(provenance['npz_sha256'], original_npz_sha256)
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self.assertEqual(npz.read_bytes(), b'unverified replacement')
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def test_confirmed_snapshot_survives_source_inode_mutation(self):
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with tempfile.TemporaryDirectory() as tmp:
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manifest, npz, _, meta = self.fixture(tmp)
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expected = espfi.digest(manifest)
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original_copy = espfi._copy_bundle
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def copy_then_mutate(source, snapshot, size):
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value = original_copy(source, snapshot, size)
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npz.write_bytes(b'unverified in-place replacement')
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return value
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with patch('csi_training.espfi._copy_bundle', side_effect=copy_then_mutate):
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parts, provenance = espfi.load_dataset(
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manifest, expected_manifest_sha256=expected)
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self.assertEqual(len(parts['train']['y']), 840)
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self.assertEqual(provenance['npz_sha256'], meta['npz_sha256'])
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self.assertEqual(npz.read_bytes(), b'unverified in-place replacement')
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def test_confirmed_snapshot_rejects_partial_copy(self):
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class ShortWriter(io.BytesIO):
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def write(self, block):
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super().write(block[:-1])
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return len(block) - 1
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with tempfile.TemporaryDirectory() as tmp:
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manifest, _, _, _ = self.fixture(tmp)
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expected = espfi.digest(manifest)
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snapshot = ShortWriter()
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with patch('csi_training.espfi.tempfile.TemporaryFile', return_value=snapshot), \
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patch('csi_training.espfi.zipfile.ZipFile') as archive, \
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patch('csi_training.espfi.np.load') as load:
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with self.assertRaisesRegex(ValueError, 'snapshot write failed'):
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espfi.load_dataset(manifest, expected_manifest_sha256=expected)
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archive.assert_not_called();load.assert_not_called()
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self.assertTrue(snapshot.closed)
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def test_confirmed_snapshot_rejects_oversize_before_tempfile(self):
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with tempfile.TemporaryDirectory() as tmp:
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manifest, npz, _, _ = self.fixture(tmp)
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expected = espfi.digest(manifest)
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npz.unlink()
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with npz.open('wb') as bundle:
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bundle.truncate(espfi.MAX_CONFIRMED_NPZ + 1)
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with patch('csi_training.espfi.tempfile.TemporaryFile') as temporary, \
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patch('csi_training.espfi._copy_bundle') as copy, \
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patch('csi_training.espfi.zipfile.ZipFile') as archive, \
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patch('csi_training.espfi.np.load') as load:
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with self.assertRaisesRegex(ValueError, 'bounded regular file'):
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espfi.load_dataset(manifest, expected_manifest_sha256=expected)
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temporary.assert_not_called();copy.assert_not_called()
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archive.assert_not_called();load.assert_not_called()
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def test_bundle_bounds_cover_fixed_schemas(self):
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# Worst-case DEFLATE plus NPY/ZIP structures for the fixed schemas.
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self.assertGreaterEqual(espfi.MAX_CONFIRMED_NPZ, 193_748_724)
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self.assertGreaterEqual(espfi.MAX_NPZ, 395_754_520)
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self.assertLess(espfi.MAX_CONFIRMED_NPZ, espfi.MAX_NPZ)
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def test_confirmed_snapshot_rejects_length_change(self):
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for declared_size in (2, 4):
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with self.subTest(declared_size=declared_size):
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with self.assertRaisesRegex(ValueError, 'changed during snapshot'):
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espfi._copy_bundle(
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io.BytesIO(b'abc'), io.BytesIO(), declared_size)
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def test_confirmed_snapshot_enospc_cleans_up(self):
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class NoSpaceWriter(io.BytesIO):
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def write(self, block):
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raise OSError(28, 'no space')
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with tempfile.TemporaryDirectory() as tmp:
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manifest, _, _, _ = self.fixture(tmp)
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expected = espfi.digest(manifest)
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for temporary in (OSError(28, 'no space'), NoSpaceWriter()):
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with self.subTest(stage=type(temporary).__name__), \
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patch('csi_training.espfi.tempfile.TemporaryFile',
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side_effect=temporary if isinstance(temporary, OSError)
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else None, return_value=None if isinstance(temporary, OSError)
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else temporary), \
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patch('csi_training.espfi.zipfile.ZipFile') as archive, \
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patch('csi_training.espfi.np.load') as load:
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with self.assertRaisesRegex(ValueError, 'snapshot unavailable'):
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espfi.load_dataset(manifest, expected_manifest_sha256=expected)
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archive.assert_not_called();load.assert_not_called()
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if isinstance(temporary, NoSpaceWriter):
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self.assertTrue(temporary.closed)
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def test_confirmed_bundle_uses_same_stream_for_zip_and_numpy(self):
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with tempfile.TemporaryDirectory() as tmp:
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manifest, _, _, _ = self.fixture(tmp)
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expected = espfi.digest(manifest)
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original_zip, original_load = zipfile.ZipFile, np.load
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original_open = espfi._open_regular_bundle
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sources = []
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consumers = []
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@contextmanager
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def capture_source(path):
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with original_open(path) as opened:
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sources.append(opened[0])
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yield opened
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def inspect(source, *args, **kwargs):
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consumers.append(('zip', source))
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self.assertTrue(sources[0].closed)
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self.assertFalse(source.closed)
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return original_zip(source, *args, **kwargs)
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def decode(source, *args, **kwargs):
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consumers.append(('numpy', source))
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self.assertTrue(sources[0].closed)
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self.assertFalse(source.closed)
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return original_load(source, *args, **kwargs)
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with patch('csi_training.espfi._open_regular_bundle', side_effect=capture_source), \
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patch('csi_training.espfi.zipfile.ZipFile', side_effect=inspect), \
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patch('csi_training.espfi.np.load', side_effect=decode):
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espfi.load_dataset(manifest, expected_manifest_sha256=expected)
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self.assertEqual({kind for kind, _ in consumers}, {'zip', 'numpy'})
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self.assertTrue(all(source is consumers[0][1]
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for _, source in consumers))
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def test_confirmed_bundle_rejects_nonregular_before_decode(self):
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if not hasattr(os, 'mkfifo'):
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self.skipTest('FIFO creation unavailable')
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for kind in ('symlink', 'fifo', 'directory'):
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with self.subTest(kind=kind), tempfile.TemporaryDirectory() as tmp:
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manifest, npz, _, _ = self.fixture(tmp)
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expected = espfi.digest(manifest)
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target = Path(tmp) / 'original.npz'
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npz.replace(target)
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if kind == 'symlink':
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npz.symlink_to(target)
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elif kind == 'fifo':
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os.mkfifo(npz)
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else:
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npz.mkdir()
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with patch('csi_training.espfi.zipfile.ZipFile') as archive, \
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patch('csi_training.espfi.np.load') as load:
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with self.assertRaisesRegex(ValueError, 'bundle'):
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espfi.load_dataset(
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manifest, expected_manifest_sha256=expected)
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archive.assert_not_called();load.assert_not_called()
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def test_development_never_deserializes_test_arrays(self):
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with tempfile.TemporaryDirectory() as tmp:
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manifest, _, _, _ = self.fixture(tmp)
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npz_class = np.lib.npyio.NpzFile
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original = npz_class.__getitem__
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accessed = []
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def guarded(data, key):
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if key.startswith('test_'):
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raise AssertionError('test payload accessed during development')
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accessed.append(key)
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return original(data, key)
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with patch.object(npz_class, '__getitem__', guarded), \
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patch.object(espfi, 'MAX_CONFIRMED_NPZ', 1), \
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patch('csi_training.espfi.tempfile.TemporaryFile') as temporary:
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parts, meta = espfi.load_development(manifest)
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temporary.assert_not_called()
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self.assertEqual(set(parts), {'train', 'validation'})
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self.assertEqual(set(accessed), {s + suffix for s in parts
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for suffix in ('_x', '_y', '_identity')})
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self.assertEqual(parts['train']['identity'].shape, (840, 4))
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self.assertEqual(meta['loaded_partitions'], ['train', 'validation'])
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def test_forged_numpy_shape_rejected_before_allocation(self):
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with tempfile.TemporaryDirectory() as tmp:
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manifest, npz, arrays, meta = self.fixture(tmp)
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with zipfile.ZipFile(npz) as z:
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members = {i.filename: z.read(i) for i in z.infolist()}
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header = io.BytesIO()
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np.lib.format.write_array_header_1_0(header,
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{'descr': '<f4', 'fortran_order': False, 'shape': (10**12, 52, 10)})
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members['train_x.npy'] = header.getvalue()
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with zipfile.ZipFile(npz, 'w') as z:
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for name, content in members.items():
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z.writestr(name, content)
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meta['npz_sha256'] = espfi.digest(npz)
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manifest.write_text(json.dumps(meta))
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with self.assertRaisesRegex(ValueError, 'numpy header'):
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espfi.load_dataset(manifest)
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def test_unverified_manifest_rejected(self):
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with tempfile.TemporaryDirectory() as tmp:
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p = Path(tmp) / 'manifest.json'
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p.write_text(json.dumps({'schema_version': 1, 'classes': espfi.CLASSES}))
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with self.assertRaisesRegex(ValueError, 'provenance'):
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espfi.load_dataset(p)
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def test_loader_rejects_source_alias(self):
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with tempfile.TemporaryDirectory() as tmp:
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manifest, _, _, meta = self.fixture(tmp)
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for value in (None, 'renamed-source'):
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with self.subTest(value=value):
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meta['dataset'] = value
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manifest.write_text(json.dumps(meta))
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with self.assertRaisesRegex(ValueError, 'provenance'):
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espfi.load_dataset(manifest)
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if __name__ == '__main__':
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unittest.main()
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