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James Smith
9463d53763
- document str defaults / bytes for binary-mode callers - wire __exit__ to False so exceptions are not suppressed - exercise exited-process path through subprocess.run Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
28 lines
1.2 KiB
Python
28 lines
1.2 KiB
Python
"""Tests for shared conftest fixtures."""
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import subprocess
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from unittest.mock import patch
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class TestFakeProcess:
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def test_works_with_subprocess_run(self, fake_process):
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"""subprocess.run() must unpack communicate() and enter the context manager."""
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proc = fake_process(stdout="hello", stderr="", returncode=0)
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with patch("subprocess.Popen", return_value=proc):
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result = subprocess.run(["anything"], capture_output=True, text=True, timeout=5)
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assert result.stdout == "hello"
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def test_running_process_defaults(self, fake_process):
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proc = fake_process()
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assert proc.poll() is None # still running
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assert proc.pid == 12345
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assert proc.communicate() == ("", "")
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def test_exited_process_detected_via_run(self, fake_process):
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"""An exited process's returncode and stderr surface through subprocess.run."""
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proc = fake_process(running=False, returncode=1, stdout=b"", stderr=b"device busy")
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with patch("subprocess.Popen", return_value=proc):
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result = subprocess.run(["anything"], capture_output=True)
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assert result.returncode == 1
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assert result.stderr == b"device busy"
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