lightning/tests/tests_app_examples/test_multi_node.py

64 lines
1.8 KiB
Python

import os
import sys
import pytest
from tests_app import _PROJECT_ROOT
from lightning_app.testing.testing import application_testing, LightningTestApp
class LightningTestMultiNodeApp(LightningTestApp):
def on_before_run_once(self):
res = super().on_before_run_once()
if self.works and all(w.has_stopped for w in self.works):
assert len([w for w in self.works]) == 2
return True
return res
@pytest.mark.skipif(True, reason="flaky")
def test_multi_node_example(monkeypatch):
monkeypatch.chdir(os.path.join(_PROJECT_ROOT, "examples/app_multi_node"))
command_line = [
"app.py",
"--blocking",
"False",
"--open-ui",
"False",
]
result = application_testing(LightningTestMultiNodeApp, command_line)
assert result.exit_code == 0
class LightningTestMultiNodeWorksApp(LightningTestApp):
def on_before_run_once(self):
res = super().on_before_run_once()
if self.works and all(w.has_stopped for w in self.works):
assert len([w for w in self.works]) == 2
return True
return res
@pytest.mark.parametrize(
"app_name",
[
"train_pytorch.py",
"train_any.py",
# "app_lite_work.py",
"train_pytorch_spawn.py",
# "app_pl_work.py": TODO Add once https://github.com/Lightning-AI/lightning/issues/15556 is resolved.
],
)
@pytest.mark.skipif(sys.platform == "win32", reason="flaky")
def test_multi_node_examples(app_name, monkeypatch):
monkeypatch.chdir(os.path.join(_PROJECT_ROOT, "examples/app_multi_node"))
command_line = [
app_name,
"--blocking",
"False",
"--open-ui",
"False",
]
result = application_testing(LightningTestMultiNodeWorksApp, command_line)
assert result.exit_code == 0