"""全仓 / 以损定仓 风险展示文案。"""
from __future__ import annotations

import sys
import unittest
from pathlib import Path

ROOT = Path(__file__).resolve().parents[1]
sys.path.insert(0, str(ROOT))

from position_sizing_lib import (  # noqa: E402
    format_risk_display_text,
    risk_percent_for_storage,
)


class TestPositionSizingRiskDisplay(unittest.TestCase):
    def test_full_margin_shows_amount_only(self):
        self.assertEqual(
            format_risk_display_text("full_margin", 1.0, 2.58, decimals=2),
            "2.58U",
        )
        self.assertIsNone(risk_percent_for_storage("full_margin", 1.0))

    def test_risk_mode_shows_percent_and_amount(self):
        self.assertEqual(
            format_risk_display_text("risk", 2.0, 10.5, decimals=2),
            "2%≈10.5U",
        )
        self.assertEqual(risk_percent_for_storage("risk", 2.0), 2.0)


if __name__ == "__main__":
    unittest.main()