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firestar5683
85 lines
3.6 KiB
Python
85 lines
3.6 KiB
Python
"""Identity content reuse never grants physical, native or temporal authority."""
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from collections import OrderedDict
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from dataclasses import replace
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import pytest
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from openpilot.starpilot.flm import live_tracking_response as response
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from openpilot.starpilot.flm.tests.test_tracking_source_context import context
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@pytest.fixture(autouse=True)
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def isolated_content(monkeypatch):
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monkeypatch.setattr(response, '_VALID_SOURCE_CONTEXTS', OrderedDict(), raising=False)
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def test_same_immutable_content_avoids_repeated_revision_work(monkeypatch):
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original = context()
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response._VALID_SOURCE_CONTEXTS.clear()
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calls = []
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revision = response._revision
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def measured(value):
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calls.append(value)
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return revision(value)
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monkeypatch.setattr(response, '_revision', measured)
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assert response.validate_source_context(original) is original
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clone = replace(original, binding=replace(original.binding))
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assert response.validate_source_context(clone) is clone
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assert len(calls) == 1
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@pytest.mark.parametrize('field,value', [
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('version', 'different'), ('lag_ns', 500_000_001), ('observed_ns', 0),
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('source_inventory_sha256', 'e'*64), ('model_revision', 'e'*64),
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('provenance', 'different'), ('parent_model_revision', 'e'*64),
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])
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def test_cached_identity_does_not_validate_changed_content(field, value):
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original = context()
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assert response.validate_source_context(original) is original
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with pytest.raises(ValueError):
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response.validate_source_context(replace(original, **{field:value}))
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def test_cached_identity_detects_mutation_on_the_same_object():
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original = context()
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object.__setattr__(original, 'lag_ns', original.lag_ns+1)
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with pytest.raises(ValueError):
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response.validate_source_context(original)
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def test_cached_identity_detects_changed_binding():
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original = context()
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changed = replace(original, binding=replace(original.binding, source_epoch=('0'if original.binding.source_epoch!='0'*64 else'1')*64))
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with pytest.raises(ValueError):
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response.validate_source_context(changed)
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def test_class_accessor_change_is_rejected_even_after_content_validation(monkeypatch):
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original = context()
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monkeypatch.setattr(response.TrackingSourceContext, 'observed_ns', property(lambda self:1), raising=False)
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with pytest.raises(ValueError):
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response.validate_source_context(original)
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def test_cached_identity_still_requires_current_witness_and_expected_binding():
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original = context()
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now = 10_000_000_000
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raw = response.ResponseWitness(original, original.binding, now-original.lag_ns,
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now-original.lag_ns, now, now-350_000_000, 8, None, now+100_000_000)
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prepared = response.prepare_response_witness(raw, original.binding, now)
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assert response.validate_response_witness(prepared, original.binding, now) is raw
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with pytest.raises(ValueError):
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response.validate_response_witness(prepared, original.binding, now+100_000_001)
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with pytest.raises(ValueError):
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response.validate_response_witness(prepared, replace(original.binding, source_epoch=('0'if original.binding.source_epoch!='0'*64 else'1')*64), now)
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with pytest.raises(ValueError):
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response.validate_response_witness(replace(raw, independent_poses=7), original.binding, now)
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def test_validated_identity_storage_remains_bounded():
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original = context()
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for index in range(20):
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value = replace(original, observed_ns=index+2)
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revision = response._revision(value)
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value = replace(value, model_revision=revision, binding=replace(value.binding, physical_model_revision=revision))
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assert response.validate_source_context(value) is value
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assert 0 < len(response._VALID_SOURCE_CONTEXTS) <= 8
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