M3 implementada e backlog atualizado

RI/tests/unit/test_agent_runtime_identity_resolver.py

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+"""Identity Resolver / BusinessContext (EP-12-T04, ADR-022, ADR-023)."""
+
+from __future__ import annotations
+
+from pathlib import Path
+
+from emcp_bus.agent_runtime.identity_resolver import IdentityResolver, IdentityResolverConfig
+from emcp_bus.common.config import load_yaml_model
+
+REPO_ROOT = Path(__file__).parents[2]
+IDENTITY_YAML = REPO_ROOT / "config" / "orchestrator" / "identity.yaml"
+
+
+def test_resolve_maps_a_declared_alias_to_its_canonical_key() -> None:
+    resolver = IdentityResolver(IdentityResolverConfig(aliases={"msisdn": "customer_key"}))
+
+    result = resolver.resolve({"msisdn": "+5511999999999"})
+
+    assert result == {"customer_key": "+5511999999999"}
+
+
+def test_resolve_passes_through_unaliased_keys_unchanged() -> None:
+    resolver = IdentityResolver(IdentityResolverConfig(aliases={"msisdn": "customer_key"}))
+
+    result = resolver.resolve({"amount": 100})
+
+    assert result == {"amount": 100}
+
+
+def test_the_real_seed_identity_yaml_validates_and_resolves_msisdn() -> None:
+    config = load_yaml_model(IDENTITY_YAML, IdentityResolverConfig)
+    resolver = IdentityResolver(config)
+
+    result = resolver.resolve({"msisdn": "+5511999999999"})
+
+    assert result == {"customer_key": "+5511999999999"}
+
+
+def test_identity_resolver_module_never_imports_pdp_or_entitlement() -> None:
+    """ADR-023's guardrail, made mechanically checkable: this module must
+    never gain a dependency on the authorization path."""
+    import ast
+
+    import emcp_bus.agent_runtime.identity_resolver as module
+
+    source = Path(module.__file__).read_text(encoding="utf-8")
+    imported_modules = set()
+    for node in ast.walk(ast.parse(source)):
+        if isinstance(node, ast.ImportFrom) and node.module:
+            imported_modules.add(node.module)
+        elif isinstance(node, ast.Import):
+            imported_modules.update(alias.name for alias in node.names)
+
+    assert not any(name.startswith("emcp_bus.pdp") for name in imported_modules)
+    assert not any(name.startswith("emcp_bus.entitlement") for name in imported_modules)