30 lines
1.0 KiB
Python
30 lines
1.0 KiB
Python
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"""月结取参锚点测试。
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守的是：月结参数快照按**所属月月末**解析，而不是生成日 —— 用 date.today()
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取参会让补生成/重新生成历史月份的经理分成与月工资随操作日期漂移，
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同一月份两次生成金额不同（违背「参数按生效日期时点化」红线）。
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"""
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from datetime import date
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from app.services.settlement_service import _month_end
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class TestMonthEnd:
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"""YYYY-MM → 所属月最后一天（含大小月与闰年）。"""
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def test_大月31日(self) -> None:
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assert _month_end("2026-10") == date(2026, 10, 31)
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def test_小月30日(self) -> None:
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assert _month_end("2026-09") == date(2026, 9, 30)
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def test_二月平年28日(self) -> None:
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assert _month_end("2026-02") == date(2026, 2, 28)
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def test_二月闰年29日(self) -> None:
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assert _month_end("2028-02") == date(2028, 2, 29)
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def test_跨年十二月(self) -> None:
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assert _month_end("2026-12") == date(2026, 12, 31)
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