build 039: complete Quotes Feed migration foundation

app/tests/unit/integrations/exchange/test_symbol_utils.py

@@ -0,0 +1,74 @@
+# app/tests/unit/integrations/exchange/test_symbol_utils.py
+
+from __future__ import annotations
+
+import pytest
+
+from src.integrations.exchange.symbol_utils import (
+    normalize_symbol as legacy_normalize_symbol,
+)
+from src.integrations.exchange.symbol_utils import (
+    symbol_candidates as legacy_symbol_candidates,
+)
+from src.market_data.acquisition.symbols import (
+    normalize_symbol as new_normalize_symbol,
+)
+from src.market_data.acquisition.symbols import (
+    symbol_candidates as new_symbol_candidates,
+)
+
+
+@pytest.mark.parametrize(
+    "raw_symbol",
+    [
+        "",
+        " ",
+        "btc/usd",
+        " BTC/USD ",
+        "btc%2fusd",
+        "btc / usd",
+        "btc%2f / usd",
+        "eth/usd_leverage",
+        "btc\t/usd",
+        "btc\n/usd",
+    ],
+)
+def test_legacy_normalize_symbol_matches_new_implementation(
+    raw_symbol: str,
+) -> None:
+    assert (
+        legacy_normalize_symbol(raw_symbol)
+        == new_normalize_symbol(raw_symbol)
+    )
+
+
+@pytest.mark.parametrize(
+    "raw_symbol",
+    [
+        "",
+        " ",
+        "btc/usd",
+        " BTC/USD ",
+        "btc%2fusd",
+        "btc / usd",
+        "btc%2f / usd",
+        "eth/usd_leverage",
+        "btc\t/usd",
+        "btc\n/usd",
+    ],
+)
+def test_legacy_symbol_candidates_matches_new_implementation(
+    raw_symbol: str,
+) -> None:
+    assert (
+        legacy_symbol_candidates(raw_symbol)
+        == new_symbol_candidates(raw_symbol)
+    )
+
+
+def test_legacy_facade_exports_same_normalize_function() -> None:
+    assert legacy_normalize_symbol is new_normalize_symbol
+
+
+def test_legacy_facade_exports_same_candidates_function() -> None:
+    assert legacy_symbol_candidates is new_symbol_candidates