generated from coulomb/repo-seed
tegwick
54c2bf2ae5
engine/activation.py: ActivationContext (shard/tenant, no authz), pluggable ActivationProvider protocol, StaticProvider standalone default (zero-dep, global flags + per-shard scoping + per-ext config), ActivationResolver (candidate ids -> active set / activation profile), and feature_control_provider() lazy factory (returns None when feature_control_sdk absent -> degrade to static; OpenFeature- shaped when present). Availability only. 6 tests green, coverage held, pyflakes clean. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
62 lines
2.2 KiB
Python
62 lines
2.2 KiB
Python
"""Tests for per-shard extension activation (SHARD-WP-0014 T3, ADR-0001)."""
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from shard_wiki.engine import (
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ActivationContext,
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ActivationResolver,
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StaticProvider,
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feature_control_provider,
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)
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CANDIDATES = ["ext.overlay", "ext.views", "ext.struct", "ext.compute"]
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def test_static_provider_default_off():
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r = ActivationResolver(StaticProvider()) # nothing enabled
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assert r.active_extensions(CANDIDATES, ActivationContext("s")) == set()
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def test_static_provider_global_flags():
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r = ActivationResolver(StaticProvider(flags={"ext.overlay": True, "ext.views": True}))
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assert r.active_extensions(CANDIDATES, ActivationContext("s")) == {"ext.overlay", "ext.views"}
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def test_per_shard_scoping_overrides_global():
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provider = StaticProvider(
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flags={"ext.views": True},
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per_shard={"engB": {"ext.struct": True, "ext.views": False}},
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)
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r = ActivationResolver(provider)
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assert r.active_extensions(CANDIDATES, ActivationContext("engA")) == {"ext.views"}
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assert r.active_extensions(CANDIDATES, ActivationContext("engB")) == {"ext.struct"}
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def test_context_carries_tenant():
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captured = {}
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class Spy(StaticProvider):
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def is_active(self, feature_key, context):
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captured.update(context)
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return super().is_active(feature_key, context)
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ActivationResolver(Spy(flags={"ext.views": True})).active_extensions(
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["ext.views"], ActivationContext("s1", tenant_id="acme")
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)
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assert captured["shard_id"] == "s1" and captured["tenant_id"] == "acme"
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def test_activation_profile_returns_config_for_active():
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provider = StaticProvider(
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flags={"ext.struct": True},
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configs={"ext.struct": {"max_fields": 50}},
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)
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profile = ActivationResolver(provider).activation_profile(CANDIDATES, ActivationContext("s"))
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assert profile == {"ext.struct": {"max_fields": 50}}
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def test_feature_control_provider_degrades_gracefully():
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# feature_control_sdk is not a dependency of shard-wiki: when absent the factory returns
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# None (standalone path stays dependency-free, ADR-0001); when present it yields a usable
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# ActivationProvider. Either way it must not raise.
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provider = feature_control_provider()
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assert provider is None or hasattr(provider, "is_active")
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