Refactor market API wrappers to streamline product and price retrieval methods

tests/api/test_binance.py

@@ -1,7 +1,52 @@
 import pytest
+from app.markets.binance import BinanceWrapper
 
 @pytest.mark.market
 @pytest.mark.api
 class TestBinance:
-    # TODO fare dei test veri e propri
-    pass
+
+    def test_binance_init(self):
+        market = BinanceWrapper()
+        assert market is not None
+        assert hasattr(market, 'currency')
+        assert market.currency == "USDT"
+
+    def test_binance_get_product(self):
+        market = BinanceWrapper()
+        product = market.get_product("BTC")
+        assert product is not None
+        assert hasattr(product, 'symbol')
+        assert product.symbol == "BTC"
+        assert hasattr(product, 'price')
+        assert product.price > 0
+
+    def test_binance_get_products(self):
+        market = BinanceWrapper()
+        products = market.get_products(["BTC", "ETH"])
+        assert products is not None
+        assert isinstance(products, list)
+        assert len(products) == 2
+        symbols = [p.symbol for p in products]
+        assert "BTC" in symbols
+        assert "ETH" in symbols
+        for product in products:
+            assert hasattr(product, 'price')
+            assert product.price > 0
+
+    def test_binance_invalid_product(self):
+        market = BinanceWrapper()
+        with pytest.raises(Exception):
+            _ = market.get_product("INVALID")
+
+    def test_binance_history(self):
+        market = BinanceWrapper()
+        history = market.get_historical_prices("BTC", limit=5)
+        assert history is not None
+        assert isinstance(history, list)
+        assert len(history) == 5
+        for entry in history:
+            assert hasattr(entry, 'time')
+            assert hasattr(entry, 'close')
+            assert hasattr(entry, 'high')
+            assert entry.close > 0
+            assert entry.high > 0