M0 e M1 revisados e fixes implementados

RI/tests/unit/test_gateway_cache.py

@@ -0,0 +1,23 @@
+"""Private tools/list cache hint (EP-05-T03, README.md §13/§28)."""
+
+from __future__ import annotations
+
+import pytest
+
+from emcp_bus.gateway.cache import tools_list_cache_hint
+
+
+def test_default_hint_is_private_scope_with_a_positive_ttl() -> None:
+    hint = tools_list_cache_hint()
+
+    assert hint.scope == "private"
+    assert hint.ttl_ms > 0
+
+
+def test_ttl_is_configurable_via_env_var(monkeypatch: pytest.MonkeyPatch) -> None:
+    monkeypatch.setenv("EMCP_TOOLS_LIST_CACHE_TTL_MS", "12345")
+
+    hint = tools_list_cache_hint()
+
+    assert hint.ttl_ms == 12345
+    assert hint.scope == "private"  # never configurable to "public" (Teste 5, §45)