31 lines
1.3 KiB
Python
31 lines
1.3 KiB
Python
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"""数据库提交失败时，上传文件恢复到原状且保留原始异常。"""
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from contextlib import nullcontext
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from types import SimpleNamespace
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from unittest.mock import Mock
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import pytest
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from app.services import system_setting_service as service
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@pytest.mark.parametrize("old_ext", [None, "png", "jpg"])
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def test_提交失败不丢旧logo也不残留新文件(tmp_path, monkeypatch, old_ext):
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original = b"original-logo"
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if old_ext:
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(tmp_path / f"logo.{old_ext}").write_bytes(original)
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monkeypatch.setattr(service, "_logo_dir", lambda: tmp_path)
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setting = SimpleNamespace(logo_path=f"logo/logo.{old_ext}" if old_ext else None)
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monkeypatch.setattr(service, "get_setting", lambda _: setting)
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monkeypatch.setattr(service.audit_service, "audit", lambda *_, **__: nullcontext())
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session = Mock()
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session.commit.side_effect = RuntimeError("数据库提交失败")
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with pytest.raises(RuntimeError, match="数据库提交失败"):
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service.save_logo(session, service._MAGIC["png"] + b"new", "png", operator=Mock())
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if old_ext == "png":
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assert (tmp_path / "logo.png").read_bytes() == original
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else:
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assert not (tmp_path / "logo.png").exists()
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if old_ext:
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assert (tmp_path / f"logo.{old_ext}").read_bytes() == original
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