test: reorganize core suite into explicit domain files

tests/stats/test_stats_account_data.py

@@ -0,0 +1,54 @@
+from __future__ import annotations
+
+from auditui.stats.account import (
+    get_account_info,
+    get_country,
+    get_subscription_details,
+)
+
+
+class AccountClient:
+    """Minimal API client returning endpoint-specific account responses."""
+
+    def __init__(self, responses: dict[str, dict]) -> None:
+        """Store endpoint response map for deterministic tests."""
+        self._responses = responses
+
+    def get(self, path: str, **kwargs: object) -> dict:
+        """Return configured response and ignore query parameters."""
+        del kwargs
+        return self._responses.get(path, {})
+
+
+def test_get_account_info_merges_multiple_endpoints() -> None:
+    """Ensure account info aggregator combines endpoint payload dictionaries."""
+    client = AccountClient(
+        {
+            "1.0/account/information": {"a": 1},
+            "1.0/customer/information": {"b": 2},
+            "1.0/customer/status": {"c": 3},
+        }
+    )
+    assert get_account_info(client) == {"a": 1, "b": 2, "c": 3}
+
+
+def test_get_subscription_details_uses_known_nested_paths() -> None:
+    """Ensure first valid subscription_details list entry is returned."""
+    info = {
+        "customer_details": {
+            "subscription": {"subscription_details": [{"name": "Plan"}]}
+        }
+    }
+    assert get_subscription_details(info) == {"name": "Plan"}
+
+
+def test_get_country_supports_locale_variants() -> None:
+    """Ensure country extraction supports object, domain, and locale string forms."""
+    auth_country_code = type(
+        "Auth", (), {"locale": type("Loc", (), {"country_code": "us"})()}
+    )()
+    auth_domain = type("Auth", (), {"locale": type("Loc", (), {"domain": "fr"})()})()
+    auth_string = type("Auth", (), {"locale": "en_gb"})()
+    assert get_country(auth_country_code) == "US"
+    assert get_country(auth_domain) == "FR"
+    assert get_country(auth_string) == "GB"