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"""Tests for PortfolioTracker."""
from decimal import Decimal
from portfolio_manager.portfolio import PortfolioTracker
from shared.models import Order, OrderSide, OrderStatus, OrderType
def make_order(side: OrderSide, price: str, quantity: str) -> Order:
"""Helper to create a filled Order."""
return Order(
signal_id="test-signal",
symbol="AAPL",
side=side,
type=OrderType.MARKET,
price=Decimal(price),
quantity=Decimal(quantity),
status=OrderStatus.FILLED,
)
def test_portfolio_add_buy_order() -> None:
tracker = PortfolioTracker()
order = make_order(OrderSide.BUY, "50000", "0.1")
tracker.apply_order(order)
position = tracker.get_position("AAPL")
assert position is not None
assert position.quantity == Decimal("0.1")
assert position.avg_entry_price == Decimal("50000")
def test_portfolio_add_multiple_buys() -> None:
tracker = PortfolioTracker()
tracker.apply_order(make_order(OrderSide.BUY, "50000", "0.1"))
tracker.apply_order(make_order(OrderSide.BUY, "52000", "0.1"))
position = tracker.get_position("AAPL")
assert position is not None
assert position.quantity == Decimal("0.2")
assert position.avg_entry_price == Decimal("51000")
def test_portfolio_sell_reduces_position() -> None:
tracker = PortfolioTracker()
tracker.apply_order(make_order(OrderSide.BUY, "50000", "0.2"))
tracker.apply_order(make_order(OrderSide.SELL, "55000", "0.1"))
position = tracker.get_position("AAPL")
assert position is not None
assert position.quantity == Decimal("0.1")
assert position.avg_entry_price == Decimal("50000")
def test_portfolio_no_position_returns_none() -> None:
tracker = PortfolioTracker()
position = tracker.get_position("MSFT")
assert position is None
def test_realized_pnl_on_sell() -> None:
"""Selling should track realized PnL."""
tracker = PortfolioTracker()
# Buy at 50000
tracker.apply_order(
Order(
signal_id="s1",
symbol="AAPL",
side=OrderSide.BUY,
type=OrderType.MARKET,
price=Decimal("50000"),
quantity=Decimal("0.1"),
status=OrderStatus.FILLED,
)
)
assert tracker.realized_pnl == Decimal("0")
# Sell at 55000 — profit of 500
tracker.apply_order(
Order(
signal_id="s2",
symbol="AAPL",
side=OrderSide.SELL,
type=OrderType.MARKET,
price=Decimal("55000"),
quantity=Decimal("0.1"),
status=OrderStatus.FILLED,
)
)
assert tracker.realized_pnl == Decimal("500")
def test_realized_pnl_on_loss() -> None:
"""Selling at a loss should track negative realized PnL."""
tracker = PortfolioTracker()
tracker.apply_order(
Order(
signal_id="s1",
symbol="AAPL",
side=OrderSide.BUY,
type=OrderType.MARKET,
price=Decimal("50000"),
quantity=Decimal("0.1"),
status=OrderStatus.FILLED,
)
)
tracker.apply_order(
Order(
signal_id="s2",
symbol="AAPL",
side=OrderSide.SELL,
type=OrderType.MARKET,
price=Decimal("45000"),
quantity=Decimal("0.1"),
status=OrderStatus.FILLED,
)
)
assert tracker.realized_pnl == Decimal("-500")
def test_realized_pnl_accumulates() -> None:
"""Multiple sells accumulate realized PnL."""
tracker = PortfolioTracker()
# Buy 0.2 at 50000
tracker.apply_order(
Order(
signal_id="s1",
symbol="AAPL",
side=OrderSide.BUY,
type=OrderType.MARKET,
price=Decimal("50000"),
quantity=Decimal("0.2"),
status=OrderStatus.FILLED,
)
)
# Sell 0.1 at 55000 -> +500
tracker.apply_order(
Order(
signal_id="s2",
symbol="AAPL",
side=OrderSide.SELL,
type=OrderType.MARKET,
price=Decimal("55000"),
quantity=Decimal("0.1"),
status=OrderStatus.FILLED,
)
)
# Sell 0.1 at 60000 -> +1000
tracker.apply_order(
Order(
signal_id="s3",
symbol="AAPL",
side=OrderSide.SELL,
type=OrderType.MARKET,
price=Decimal("60000"),
quantity=Decimal("0.1"),
status=OrderStatus.FILLED,
)
)
assert tracker.realized_pnl == Decimal("1500")
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