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68 lines
2.3 KiB
Python
68 lines
2.3 KiB
Python
"""Coverage for _run_with_idle_timeout — the streaming subprocess helper.
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Kept in a dedicated test file because the tests spawn real ``subprocess.Popen``
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instances; pytest-isolate runs each test file in its own worker process, so
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isolating these here prevents real-Popen state from racing with the
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``subprocess.run`` / ``_run_with_idle_timeout`` patches used by
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``test_web_ui_build.py``.
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Added for issue #33788: ``hermes update`` got stuck at "webui-build" because
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``npm run build`` ran with ``capture_output=True`` and no timeout. The helper
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fixes both halves — streams output AND idle-kills the process.
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"""
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import sys as _sys
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import time
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from hermes_cli.main import _run_with_idle_timeout
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def test_streams_output_and_returns_zero_on_success(tmp_path):
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script = tmp_path / "ok.py"
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script.write_text("print('line one'); print('line two')\n")
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result = _run_with_idle_timeout(
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[_sys.executable, str(script)], cwd=tmp_path, idle_timeout_seconds=10
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)
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assert result.returncode == 0
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assert "line one" in result.stdout
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assert "line two" in result.stdout
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def test_propagates_nonzero_exit(tmp_path):
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script = tmp_path / "fail.py"
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script.write_text("import sys; print('boom', file=sys.stderr); sys.exit(7)\n")
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result = _run_with_idle_timeout(
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[_sys.executable, str(script)], cwd=tmp_path, idle_timeout_seconds=10
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)
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assert result.returncode == 7
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# stderr is merged into stdout in the helper.
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assert "boom" in result.stdout
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def test_kills_process_on_idle_timeout(tmp_path):
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# Sleeps without printing — exactly the failure mode users see when
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# `npm run build` stalls. Idle timeout must terminate it.
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script = tmp_path / "stall.py"
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script.write_text("import time; time.sleep(30)\n")
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start = time.monotonic()
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result = _run_with_idle_timeout(
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[_sys.executable, str(script)],
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cwd=tmp_path,
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idle_timeout_seconds=1,
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)
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elapsed = time.monotonic() - start
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# Should have died well before the 30s sleep completes.
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assert elapsed < 15
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assert result.returncode != 0
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assert "produced no output" in result.stdout
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def test_returns_127_when_binary_missing(tmp_path):
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result = _run_with_idle_timeout(
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["/nonexistent/binary/does/not/exist"],
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cwd=tmp_path,
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idle_timeout_seconds=5,
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)
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assert result.returncode == 127
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