stroblmeandClaude Fable 5
83c30aa1c7
The worker script is handed to the interpreter by path, so app/flow was sys.path[0] for every node: `import queue` got the engine's. It now drops its own directory before anything else imports, and runs with the deployment's credentials scrubbed out of its environment. Also: reload builds off the event loop, the pool wakes what is blocked on it when it stops, a refused metrics flush is kept for the next one rather than dropped, and the cascade events are paired through failures. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017MeiWk3Yq12n2pTvnQWYvt
78 lines
2.3 KiB
Python
78 lines
2.3 KiB
Python
"""The venv node code imports from is built and kept in step with a manifest."""
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import shutil
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import subprocess
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from pathlib import Path
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import pytest
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from app.flow import modules
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from app.flow.store import FlowStore
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pytestmark = pytest.mark.skipif(
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shutil.which("uv") is None, reason="module management needs uv"
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)
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@pytest.fixture
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def venv(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> Path:
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directory = tmp_path / "user-venv"
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monkeypatch.setattr(modules, "VENV_DIR", directory)
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return directory
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def test_an_empty_manifest_gives_a_venv_of_its_own(venv: Path, tmp_path: Path):
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store = FlowStore(tmp_path / "flows")
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store.write_requirements("")
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modules.sync("")
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assert Path(modules.venv_python()).exists()
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assert modules.venv_python().startswith(str(venv))
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information = modules.info(store)
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assert information.applied is True
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assert information.python_version
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def test_a_manifest_already_applied_is_not_installed_again(
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venv: Path, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
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):
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store = FlowStore(tmp_path / "flows")
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store.write_requirements("")
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modules.sync("")
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marker = (venv / ".applied").read_text()
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# Recorded rather than refused: reconcile swallows what it fails on, so an
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# exception raised in here would never reach the test.
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calls: list[object] = []
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monkeypatch.setattr(subprocess, "run", lambda *args, **kwargs: calls.append(args))
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modules.reconcile(store)
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assert calls == []
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assert (venv / ".applied").read_text() == marker
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def test_a_missing_uv_is_a_failed_apply_rather_than_a_crash(
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venv: Path, monkeypatch: pytest.MonkeyPatch
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):
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def no_uv(*args: object, **kwargs: object) -> None:
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raise FileNotFoundError(2, "No such file or directory: 'uv'")
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monkeypatch.setattr(subprocess, "run", no_uv)
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ok, output = modules.sync("")
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# The route turns this into a 400 with the output; an exception would be a
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# 500 with nothing in it.
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assert ok is False
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assert "uv could not run" in output
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def test_a_manifest_that_does_not_resolve_leaves_the_venv_alone(venv: Path):
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modules.sync("")
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ok, output = modules.sync("fluksio-no-such-package-anywhere==9.9.9")
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assert ok is False
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assert output
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# The marker still describes the manifest that actually installed.
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assert (venv / ".applied").read_text() == modules._digest("")
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