Разработана первая версия приложений

codebase/backend/api-backend/tests/unit/test_domain.py

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+import uuid
+
+import pytest
+from pydantic import TypeAdapter, ValidationError
+
+from app.auth import canonical_phone
+from app.integrations import CircuitBreaker, RateLimiter
+from app.schemas import (
+    FileMessageRequest,
+    MessageRequest,
+    TextMessageRequest,
+    canonical_fingerprint,
+    decode_cursor,
+    encode_cursor,
+)
+
+
+def test_phone_claim_priority_and_e164_validation() -> None:
+    claims = {"phone_number": "+74999591007", "preferred_username": "+12025550123"}
+    assert canonical_phone(claims) == "+74999591007"
+    assert canonical_phone({"phone_number": "89999999999"}) is None
+
+
+def test_message_discriminated_union() -> None:
+    adapter = TypeAdapter(MessageRequest)
+    assert isinstance(
+        adapter.validate_python({"content_kind": "text", "text": "Здравствуйте"}),
+        TextMessageRequest,
+    )
+    assert isinstance(
+        adapter.validate_python(
+            {
+                "content_kind": "file",
+                "attachment_id": str(uuid.uuid4()),
+                "checksum": "sha256:" + "a" * 64,
+            }
+        ),
+        FileMessageRequest,
+    )
+    with pytest.raises(ValidationError):
+        adapter.validate_python(
+            {"content_kind": "text", "text": "", "attachment_id": str(uuid.uuid4())}
+        )
+
+
+def test_fingerprint_is_canonical_and_user_scoped() -> None:
+    user = uuid.uuid4()
+    first = canonical_fingerprint("post", "/dialogs/{id}", {"id": "1"}, {"b": 2, "a": 1}, user)
+    second = canonical_fingerprint("POST", "/dialogs/{id}", {"id": "1"}, {"a": 1, "b": 2}, user)
+    assert first == second
+    assert first != canonical_fingerprint(
+        "POST", "/dialogs/{id}", {"id": "1"}, {"a": 1, "b": 2}, uuid.uuid4()
+    )
+
+
+def test_cursor_roundtrip_and_tamper_rejection() -> None:
+    secret = b"test-secret" * 4
+    cursor = encode_cursor({"id": str(uuid.uuid4()), "created_at": "2026-01-01"}, secret)
+    assert decode_cursor(cursor, secret)["created_at"] == "2026-01-01"
+    with pytest.raises(ValueError, match="invalid cursor"):
+        decode_cursor(cursor[:-2] + "aa", secret)
+
+
+def test_rate_limit_keys_do_not_expose_identity() -> None:
+    key = RateLimiter.key("ip", "203.0.113.7", "public", 60)
+    assert "203.0.113.7" not in key
+    assert key.startswith("han:api:rl:ip:")
+
+
+def test_circuit_breaker_opens_and_half_opens(monkeypatch: pytest.MonkeyPatch) -> None:
+    clock = [10.0]
+    monkeypatch.setattr("app.integrations.time.monotonic", lambda: clock[0])
+    breaker = CircuitBreaker(2, 30)
+    breaker.failure()
+    breaker.failure()
+    assert not breaker.allow()
+    clock[0] = 41.0
+    assert breaker.allow()
+    breaker.success()
+    assert breaker.allow()