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45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
import subprocess
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from unittest import TestCase
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from unittest.mock import patch
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from app.utils.system import SystemUtils
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class SystemUtilsTest(TestCase):
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def test_execute_with_subprocess_keeps_stdout_when_command_fails(self):
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"""
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命令失败时如果原因只写入 stdout，也需要回传给调用方用于错误提示。
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"""
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error = subprocess.CalledProcessError(
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returncode=1,
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cmd=["pip", "check"],
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output="demo requires pkg>=2, but you have pkg 1\n",
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stderr="",
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)
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with patch("app.utils.system.subprocess.run", side_effect=error):
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success, message = SystemUtils.execute_with_subprocess(["pip", "check"])
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self.assertFalse(success)
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self.assertIn("返回码：1", message)
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self.assertIn("标准输出：demo requires pkg>=2, but you have pkg 1", message)
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def test_execute_with_subprocess_reports_empty_failure_output(self):
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"""
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命令失败且没有任何输出时，给出明确占位信息，避免错误原因看起来被截断。
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"""
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error = subprocess.CalledProcessError(
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returncode=2,
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cmd=["pip", "check"],
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output="",
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stderr="",
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)
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with patch("app.utils.system.subprocess.run", side_effect=error):
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success, message = SystemUtils.execute_with_subprocess(["pip", "check"])
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self.assertFalse(success)
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self.assertIn("返回码：2", message)
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self.assertIn("无标准输出或错误输出", message)
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