Проект разделен на два репозитория

VM2_services/codebase/services/message-safety/tests/test_determinism.py

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+from __future__ import annotations
+
+from uuid import UUID
+
+import pytest
+
+from app.contracts import TextCheck
+from app.fingerprint import canonical_json, fingerprint
+from app.normalization import normalize_text
+
+
+def test_jcs_field_order_and_unicode_are_deterministic() -> None:
+    left = {"z": None, "а": "е\u0301", "a": 1}
+    right = {"a": 1, "z": None, "а": "е\u0301"}
+    assert canonical_json(left) == canonical_json(right)
+    assert fingerprint(left) == fingerprint(right)
+    assert canonical_json(left).decode() == '{"a":1,"z":null,"а":"е́"}'
+
+
+def test_dto_fingerprint_contains_explicit_null() -> None:
+    dto = TextCheck(
+        message_id=UUID("00000000-0000-4000-8000-000000000001"),
+        content_kind="text",
+        text="hello",
+        attachment=None,
+    )
+    assert b'"attachment":null' in canonical_json(dto)
+    assert len(fingerprint(dto)) == 32
+
+
+def test_normalization_nfkc_whitespace_and_flags() -> None:
+    result = normalize_text("Ａ\r\nB\u200b\u202e C")
+    assert result.display.startswith("A\nB")
+    assert result.analysis == "A\nB C"
+    assert result.flags == ("bidi_control", "default_ignorable", "zero_width")
+
+
+def test_normalization_hard_limit() -> None:
+    with pytest.raises(ValueError):
+        normalize_text("x" * 10_001)