97 lines
3.2 KiB
Python
97 lines
3.2 KiB
Python
from __future__ import annotations
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from pathlib import Path
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import sys
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import unittest
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from unittest.mock import patch
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SRC_ROOT = Path(__file__).resolve().parents[2] / "src"
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if str(SRC_ROOT) not in sys.path:
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sys.path.insert(0, str(SRC_ROOT))
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from ffx.process import ( # noqa: E402
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COMMAND_NOT_FOUND_RETURN_CODE,
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COMMAND_TIMED_OUT_RETURN_CODE,
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executeProcess,
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getWrappedCommandSequence,
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normalizeCpuPercent,
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normalizeNiceness,
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)
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class ProcessTests(unittest.TestCase):
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def test_execute_process_returns_stdout_for_success(self):
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out, err, rc = executeProcess(
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[sys.executable, "-c", "print('hello from process')"]
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)
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self.assertEqual(0, rc)
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self.assertEqual("", err)
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self.assertEqual("hello from process\n", out)
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def test_execute_process_maps_missing_command_to_stable_error(self):
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out, err, rc = executeProcess(["ffx-command-that-does-not-exist"])
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self.assertEqual("", out)
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self.assertEqual(COMMAND_NOT_FOUND_RETURN_CODE, rc)
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self.assertIn("Command not found while running", err)
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self.assertIn("ffx-command-that-does-not-exist", err)
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def test_execute_process_maps_timeout_to_stable_error(self):
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out, err, rc = executeProcess(
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[sys.executable, "-c", "import time; time.sleep(0.2)"],
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timeoutSeconds=0.05,
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)
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self.assertEqual("", out)
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self.assertEqual(COMMAND_TIMED_OUT_RETURN_CODE, rc)
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self.assertIn("Command timed out", err)
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self.assertIn(sys.executable, err)
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def test_get_wrapped_command_sequence_leaves_command_unwrapped_when_limits_disabled(self):
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wrapped = getWrappedCommandSequence(
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["ffmpeg", "-i", "input.mkv"],
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context={"resource_limits": {"niceness": None, "cpu_percent": None}},
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)
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self.assertEqual(["ffmpeg", "-i", "input.mkv"], wrapped)
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def test_get_wrapped_command_sequence_wraps_nice_when_configured(self):
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wrapped = getWrappedCommandSequence(
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["ffmpeg", "-i", "input.mkv"],
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context={"resource_limits": {"niceness": 5, "cpu_percent": None}},
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)
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self.assertEqual(["nice", "-n", "5", "ffmpeg", "-i", "input.mkv"], wrapped)
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def test_get_wrapped_command_sequence_wraps_cpulimit_around_nice_when_both_configured(self):
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wrapped = getWrappedCommandSequence(
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["ffmpeg", "-i", "input.mkv"],
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context={"resource_limits": {"niceness": 5, "cpu_limit": 200}},
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)
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self.assertEqual(
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["cpulimit", "-l", "200", "--", "nice", "-n", "5", "ffmpeg", "-i", "input.mkv"],
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wrapped,
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)
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def test_normalize_niceness_accepts_disabled_sentinel(self):
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self.assertIsNone(normalizeNiceness(99))
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def test_normalize_cpu_percent_accepts_disabled_sentinel(self):
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self.assertIsNone(normalizeCpuPercent(0))
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def test_normalize_cpu_percent_accepts_absolute_cpulimit_values(self):
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self.assertEqual(200, normalizeCpuPercent(200))
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def test_normalize_cpu_percent_converts_percent_of_present_cores(self):
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with patch("ffx.process.getPresentCpuCount", return_value=8):
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self.assertEqual(200, normalizeCpuPercent("25%"))
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if __name__ == "__main__":
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unittest.main()
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