56 lines
1.8 KiB
Python
56 lines
1.8 KiB
Python
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"""cache.py DTO 单元测试。
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覆盖 ``LockToken`` 的字段赋值、默认值、不可变语义与 ``__post_init__``
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校验逻辑。
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"""
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from __future__ import annotations
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import dataclasses
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from datetime import datetime
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import pytest
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from yuxi.channels.contract.dtos.cache import LockToken
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from yuxi.channels.contract.errors import ValidationError
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pytestmark = pytest.mark.unit
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@pytest.mark.unit
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class TestLockToken:
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"""锁令牌 DTO 测试。"""
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def test_fields_are_assigned(self):
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# Arrange
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now = datetime(2026, 1, 1, 12, 0, 0)
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# Act
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token = LockToken(key="lock:abc", value="token-123", expires_at=now)
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# Assert
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assert token.key == "lock:abc"
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assert token.value == "token-123"
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assert token.expires_at is now
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def test_is_frozen(self):
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# Arrange
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now = datetime(2026, 1, 1, 12, 0, 0)
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token = LockToken(key="lock:abc", value="token-123", expires_at=now)
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# Act / Assert
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with pytest.raises(dataclasses.FrozenInstanceError):
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token.key = "other" # type: ignore[misc]
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def test_empty_key_raises_validation_error(self):
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# Arrange
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now = datetime(2026, 1, 1, 12, 0, 0)
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# Act / Assert - key 为空字符串应抛出 ValidationError
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with pytest.raises(ValidationError) as exc_info:
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LockToken(key="", value="token-123", expires_at=now)
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assert exc_info.value.field == "key"
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def test_empty_value_raises_validation_error(self):
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# Arrange
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now = datetime(2026, 1, 1, 12, 0, 0)
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# Act / Assert - value 为空字符串应抛出 ValidationError
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with pytest.raises(ValidationError) as exc_info:
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LockToken(key="lock:abc", value="", expires_at=now)
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assert exc_info.value.field == "value"
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