Files
axolotl/tests/cli/test_cli_inference.py
Dan Saunders bb1cae1a20 CLI: add --launcher option, support launcher args, cleanup, refactor (#2924)
* add --launcher option; explicit True/False bool args; small cleanup

* refactor

* add torchrun, accelerate cli args

* add rdzv arg default + tests

* update _quarto

* coderabbit

* fix

* we can't set rdvz_id independently across nodes

* coderabbit

* fix tests
2025-07-30 15:46:56 -04:00

149 lines
4.7 KiB
Python

"""pytest tests for axolotl CLI inference command."""
# pylint: disable=duplicate-code
from unittest.mock import patch
from axolotl.cli.main import cli
def test_inference_basic(cli_runner, config_path):
"""Test basic inference"""
with patch("axolotl.cli.inference.do_inference") as mock:
result = cli_runner.invoke(
cli,
["inference", str(config_path), "--launcher", "python"],
catch_exceptions=False,
)
assert mock.called
assert result.exit_code == 0
def test_inference_gradio(cli_runner, config_path):
"""Test basic inference (gradio path)"""
with patch("axolotl.cli.inference.do_inference_gradio") as mock:
result = cli_runner.invoke(
cli,
["inference", str(config_path), "--launcher", "python", "--gradio"],
catch_exceptions=False,
)
assert mock.called
assert result.exit_code == 0
def test_inference_with_launcher_args_torchrun(cli_runner, config_path):
"""Test inference with torchrun launcher arguments"""
with patch("subprocess.run") as mock_subprocess:
result = cli_runner.invoke(
cli,
[
"inference",
str(config_path),
"--launcher",
"torchrun",
"--",
"--nproc_per_node=2",
"--nnodes=1",
],
catch_exceptions=False,
)
assert result.exit_code == 0
mock_subprocess.assert_called_once()
# Verify launcher args are passed to torchrun
called_cmd = mock_subprocess.call_args.args[0]
assert called_cmd[0] == "torchrun"
assert "--nproc_per_node=2" in called_cmd
assert "--nnodes=1" in called_cmd
assert "-m" in called_cmd
assert "axolotl.cli.inference" in called_cmd
def test_inference_with_launcher_args_accelerate(cli_runner, config_path):
"""Test inference with accelerate launcher arguments"""
with patch("subprocess.run") as mock_subprocess:
result = cli_runner.invoke(
cli,
[
"inference",
str(config_path),
"--launcher",
"accelerate",
"--",
"--config_file=accelerate_config.yml",
"--num_processes=4",
],
catch_exceptions=False,
)
assert result.exit_code == 0
mock_subprocess.assert_called_once()
# Verify launcher args are passed to accelerate
called_cmd = mock_subprocess.call_args.args[0]
assert called_cmd[0] == "accelerate"
assert called_cmd[1] == "launch"
assert "--config_file=accelerate_config.yml" in called_cmd
assert "--num_processes=4" in called_cmd
assert "-m" in called_cmd
assert "axolotl.cli.inference" in called_cmd
def test_inference_gradio_with_launcher_args(cli_runner, config_path):
"""Test inference with gradio and launcher arguments"""
with patch("subprocess.run") as mock_subprocess:
result = cli_runner.invoke(
cli,
[
"inference",
str(config_path),
"--launcher",
"accelerate",
"--gradio",
"--",
"--num_processes=2",
],
catch_exceptions=False,
)
assert result.exit_code == 0
mock_subprocess.assert_called_once()
# Verify both gradio flag and launcher args are present
called_cmd = mock_subprocess.call_args.args[0]
assert called_cmd[0] == "accelerate"
assert called_cmd[1] == "launch"
assert "--num_processes=2" in called_cmd
assert "--gradio" in called_cmd
assert "-m" in called_cmd
assert "axolotl.cli.inference" in called_cmd
def test_inference_backward_compatibility_no_launcher_args(cli_runner, config_path):
"""Test that existing inference commands work without launcher args"""
with patch("subprocess.run") as mock_subprocess:
result = cli_runner.invoke(
cli,
[
"inference",
str(config_path),
"--launcher",
"accelerate",
],
catch_exceptions=False,
)
assert result.exit_code == 0
mock_subprocess.assert_called_once()
# Verify no launcher args contamination
called_cmd = mock_subprocess.call_args.args[0]
assert called_cmd[0] == "accelerate"
assert called_cmd[1] == "launch"
# Should not contain any extra launcher args
launcher_section = called_cmd[2 : called_cmd.index("-m")]
assert len(launcher_section) == 0 # No launcher args between 'launch' and '-m'