AdrianoDev
993326136b
Copiati e aggiornati i test da services/common/tests/ a tests/unit/common/. Import aggiornati da mcp_common a cerbero_mcp.common. Eliminati test di funzionalità V1-only (app_factory, environment, auth/Principal, server_base). Refactored test_audit.py (principal→actor str) e test_mcp_bridge.py (TokenStore→valid_tokens set). 71/71 test passano. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
60 lines
2.1 KiB
Python
60 lines
2.1 KiB
Python
from __future__ import annotations
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from cerbero_mcp.common.microstructure import orderbook_imbalance
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def test_orderbook_imbalance_balanced():
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bids = [[100.0, 1.0], [99.5, 1.0], [99.0, 1.0]]
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asks = [[100.5, 1.0], [101.0, 1.0], [101.5, 1.0]]
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out = orderbook_imbalance(bids, asks, depth=3)
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assert abs(out["imbalance_ratio"]) < 0.01 # bilanciato
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assert out["bid_volume"] == 3.0
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assert out["ask_volume"] == 3.0
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assert out["microprice"] is not None
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def test_orderbook_imbalance_bid_heavy():
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bids = [[100.0, 5.0], [99.5, 5.0]]
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asks = [[100.5, 1.0], [101.0, 1.0]]
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out = orderbook_imbalance(bids, asks, depth=2)
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assert out["imbalance_ratio"] > 0.5 # forte bid pressure
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assert out["bid_volume"] == 10.0
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assert out["ask_volume"] == 2.0
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def test_orderbook_imbalance_ask_heavy():
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bids = [[100.0, 1.0], [99.5, 1.0]]
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asks = [[100.5, 5.0], [101.0, 5.0]]
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out = orderbook_imbalance(bids, asks, depth=2)
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assert out["imbalance_ratio"] < -0.5
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def test_orderbook_imbalance_microprice_skew():
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"""Microprice è weighted mid: pesato bid/ask depth opposto."""
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bids = [[100.0, 9.0]]
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asks = [[101.0, 1.0]]
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out = orderbook_imbalance(bids, asks, depth=1)
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# large bid → microprice closer to ask (paradox: weighted by *opposite* size)
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assert out["microprice"] > 100.5
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def test_orderbook_imbalance_empty():
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out = orderbook_imbalance([], [], depth=5)
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assert out["imbalance_ratio"] is None
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assert out["microprice"] is None
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def test_orderbook_imbalance_one_sided():
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out = orderbook_imbalance([[100.0, 1.0]], [], depth=1)
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assert out["imbalance_ratio"] == 1.0 # all bid
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def test_orderbook_imbalance_slope():
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"""Slope = velocity of liquidity dropoff: ripido = poca liquidità in profondità."""
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bids_steep = [[100.0, 10.0], [99.0, 1.0]] # depth crolla → slope alto
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asks_steep = [[101.0, 10.0], [102.0, 1.0]]
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out = orderbook_imbalance(bids_steep, asks_steep, depth=2)
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assert out["bid_slope"] is not None
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# bid liquidity drops by 9 per 1 price unit → slope ~9
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assert out["bid_slope"] > 5.0
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