Files
app/backend/tests/test_cli.py
T
stroblmeandClaude Opus 5 9286573f38 Fetch a run's artifacts from the CLI
`save_artifact` had no download counterpart: the run detail listed a run's
files and nothing in `fluksio --help` fetched one. `fluksio artifacts RUN`
lists them, `fluksio artifacts RUN NAME` writes one — under the name the
node saved it as, since the message name is chosen for the graph. The run
detail now carries that filename, which it held in the table and did not
report.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019Hra4ndWMCLU5F3KjUuVAc
2026-08-29 13:48:23 +02:00

522 lines
17 KiB
Python

"""The command line, and the one ordering it depends on."""
import subprocess
import sys
from pathlib import Path
from fluksio.cli import load_or_create_secret_key
def test_importing_the_cli_does_not_build_the_settings() -> None:
"""`_configure_environment` has to run before anything reads a setting.
The settings are built on the first import of `fluksio.core.config`, and
every engine module reaches it within an import or two. If importing the
CLI pulled it in, `DATA_DIR` would be fixed at whatever directory the
command was run from — which is how the database ends up in the cwd.
"""
leaked = subprocess.run(
[
sys.executable,
"-c",
"import fluksio.cli, sys; print('fluksio.core.config' in sys.modules)",
],
capture_output=True,
text=True,
check=True,
)
assert leaked.stdout.strip() == "False", leaked.stdout
def test_the_secret_key_is_kept_rather_than_regenerated(tmp_path: Path) -> None:
"""A new key each start would sign out every session and orphan secrets.enc."""
path = tmp_path / "secret_key"
first = load_or_create_secret_key(path)
assert load_or_create_secret_key(path) == first
assert path.stat().st_mode & 0o777 == 0o600
def test_the_store_works_without_git(tmp_path: Path, monkeypatch) -> None:
"""A pip install on a locked-down host may have no git.
Flows are files, and that is what the store is for; the history is the part
that needs git. Losing it must not be a refusal to start.
"""
import subprocess as sp
from fluksio.flow.store import FlowStore
real_run = sp.run
def no_git(cmd, *args, **kwargs):
if cmd and cmd[0] == "git":
raise FileNotFoundError(2, "No such file or directory", "git")
return real_run(cmd, *args, **kwargs)
monkeypatch.setattr(sp, "run", no_git)
monkeypatch.setattr(FlowStore, "_warned_no_git", False)
store = FlowStore(tmp_path / "flows")
assert store.head() == ""
store.write_requirements("numpy\n")
assert store.read_requirements() == "numpy\n"
def test_run_arguments_are_typed_by_the_flow_they_are_for() -> None:
"""`--lr 0.05` is a float because the flow says `lr` is one."""
from fluksio.sdk import SyncError
from fluksio.sdk.cli import _params
definition = {
"inputs": [
{"spec": {"name": "lr", "dtype": "float"}},
{"spec": {"name": "epochs", "dtype": "int"}},
{"spec": {"name": "resume", "dtype": "bool"}},
]
}
assert _params(definition, ["--lr", "0.05", "--epochs", "3", "--resume"]) == {
"lr": 0.05,
"epochs": 3,
"resume": True,
}
assert _params(definition, ["--lr=1e-4"]) == {"lr": 0.0001}
import pytest
with pytest.raises(SyncError, match="not an input of this flow"):
_params(definition, ["--nonesuch", "1"])
def test_a_sweeps_param_spelling_is_refused_by_name() -> None:
"""`run --param lr=0.002` is a name this flow has not got, and says so."""
import pytest
from fluksio.sdk import SyncError
from fluksio.sdk.cli import _params
definition = {"inputs": [{"spec": {"name": "lr", "dtype": "float"}}]}
# Not a JSONDecodeError over `lr=0.002`, which is what reading the value
# before the name used to give.
with pytest.raises(SyncError, match="sweep --param"):
_params(definition, ["--param", "lr=0.002"])
with pytest.raises(SyncError, match="'lr' takes float"):
_params(definition, ["--lr", "fast"])
def test_serve_uses_the_installation_the_directory_belongs_to(
tmp_path: Path, monkeypatch
) -> None:
"""A repository with its own venv gets its own engine, not the machine's."""
from fluksio import cli
monkeypatch.chdir(tmp_path)
monkeypatch.setattr(cli, "DEFAULT_HOME", tmp_path / "home" / ".fluksio")
# Nothing above it yet: one is made here rather than in the home directory.
made = cli._data_dir(None)
assert made == (tmp_path / ".fluksio").resolve()
assert (made / ".gitignore").exists()
# And is then found again from anywhere below it.
deep = tmp_path / "src" / "deep"
deep.mkdir(parents=True)
monkeypatch.chdir(deep)
assert cli._data_dir(None) == made
# `--global` asks for the shared one even so.
assert (
cli._data_dir(None, shared=True) == (tmp_path / "home" / ".fluksio").resolve()
)
# And `--data-dir` still names any directory outright.
named = cli._data_dir(str(tmp_path / "named"))
assert named == (tmp_path / "named").resolve()
def test_enrolling_needs_only_a_claim_code() -> None:
"""The default portal is what makes first-run one flag rather than two."""
from fluksio.cli import DEFAULT_PORTAL, _parser
args = _parser().parse_args(["enroll", "ABC-123"])
assert args.portal == DEFAULT_PORTAL
assert DEFAULT_PORTAL.startswith("https://")
# And a portal of your own still wins.
mine = _parser().parse_args(["enroll", "ABC-123", "--portal", "https://hub.me"])
assert mine.portal == "https://hub.me"
def test_run_syncs_by_default_and_can_be_told_not_to() -> None:
from fluksio.cli import _parser
assert _parser().parse_args(["run", "train"]).no_sync is False
assert _parser().parse_args(["run", "train", "--no-sync"]).no_sync is True
def test_a_sweep_is_the_product_of_the_parameters_given() -> None:
"""`--param lr=0.1,0.01 --param epochs=1,2` is four runs, typed by the flow."""
import pytest
from fluksio.sdk import SyncError
from fluksio.sdk.cli import _grid
definition = {
"inputs": [
{"spec": {"name": "lr", "dtype": "float"}},
{"spec": {"name": "epochs", "dtype": "int"}},
]
}
grid = _grid(definition, ["lr=0.1,0.01", "epochs=1,2"], seed=7)
assert [entry["params"] for entry in grid] == [
{"lr": 0.1, "epochs": 1},
{"lr": 0.1, "epochs": 2},
{"lr": 0.01, "epochs": 1},
{"lr": 0.01, "epochs": 2},
]
assert all(entry["seed"] == 7 for entry in grid)
with pytest.raises(SyncError, match="not an input of this flow"):
_grid(definition, ["nonesuch=1"], seed=None)
with pytest.raises(SyncError, match="name=value"):
_grid(definition, ["lr"], seed=None)
def test_the_local_engine_is_asked_for_rather_than_guessed() -> None:
from fluksio.cli import _parser
parser = _parser()
assert parser.parse_args(["run", "train"]).local is False
assert parser.parse_args(["run", "train", "--local"]).local is True
assert parser.parse_args(["runs", "--local"]).local is True
assert parser.parse_args(["sweep", "train", "--param", "lr=1"]).local is False
def test_a_local_run_always_waits(monkeypatch) -> None:
"""The engine is this process, so a run nobody waits for is thrown away."""
from contextlib import contextmanager
from fluksio.cli import _parser
from fluksio.sdk import cli
submitted: dict[str, object] = {}
class FakeHandle:
id = "run-1"
status = "ok"
result: dict[str, object] = {}
def wait(self, timeout: float = 0.0) -> "FakeHandle":
submitted["waited"] = True
return self
class FakeClient:
def get_flow(self, name: str) -> dict[str, object]:
return {"definition": {"inputs": []}}
def submit(self, flow, params, seed=None, no_cache=False, cause="sdk"):
submitted["flow"] = flow
submitted["no_cache"] = no_cache
submitted["cause"] = cause
return FakeHandle()
def run(self, run_id: str) -> dict[str, object]:
return {"nodes": [{"status": "cached"}, {"status": "ok"}]}
@contextmanager
def fake_engine():
yield FakeClient()
monkeypatch.setattr(cli, "_engine_client", fake_engine)
args = _parser().parse_args(["run", "train", "--local", "--no-sync", "--no-cache"])
assert cli.cmd_run(args, []) == 0
# "cli" rather than the SDK's default: the history says which asked.
assert submitted == {
"flow": "train",
"no_cache": True,
"waited": True,
"cause": "cli",
}
def test_ctrl_c_while_waiting_cancels_the_run(monkeypatch) -> None:
"""Interrupting means stop the run, not walk away leaving it going."""
from contextlib import contextmanager
from fluksio.cli import _parser
from fluksio.sdk import cli
cancelled: list[str] = []
class FakeHandle:
id = "run-1"
status = "running"
result: dict[str, object] = {}
def wait(self, timeout: float = 0.0):
raise KeyboardInterrupt
class FakeClient:
def get_flow(self, name: str) -> dict[str, object]:
return {"definition": {"inputs": []}}
def submit(self, flow, params, seed=None, no_cache=False, cause="sdk"):
return FakeHandle()
def cancel(self, run_id: str) -> None:
cancelled.append(run_id)
@contextmanager
def fake_engine():
yield FakeClient()
monkeypatch.setattr(cli, "_engine_client", fake_engine)
args = _parser().parse_args(["run", "train", "--local", "--no-sync"])
assert cli.cmd_run(args, []) == 130
assert cancelled == ["run-1"]
def test_an_artifact_input_may_be_named_rather_than_pasted() -> None:
"""The engine resolves either spelling; the CLI just stops mangling them."""
import json
from fluksio.sdk.cli import _coerce
assert _coerce("@run:123-abc.dataset", "artifact") == "@run:123-abc.dataset"
digest = "sha256:" + "a1" * 32
assert _coerce(digest, "artifact") == digest
# A reference a script already holds still arrives as the object it is.
reference = {"digest": digest, "size": 3}
assert _coerce(json.dumps(reference), "artifact") == reference
def test_the_run_prompt_keeps_declared_values_for_anything_left_blank() -> None:
"""Enter through the lot is what running with the defaults looks like."""
from unittest.mock import patch
from fluksio.sdk.cli import _ask_params
definition = {
"inputs": [
{"spec": {"name": "lr", "dtype": "float"}, "initial": 0.05},
{"spec": {"name": "epochs", "dtype": "int"}, "initial": 10},
]
}
with patch("builtins.input", side_effect=["", ""]):
# Nothing sent: an input the caller leaves out keeps what it declares,
# which is the same contract the browser's dialog has.
assert _ask_params(definition) == {}
with patch("builtins.input", side_effect=["0.01", "50"]):
assert _ask_params(definition) == {"lr": 0.01, "epochs": 50}
def test_the_run_prompt_names_an_answer_of_the_wrong_type() -> None:
from unittest.mock import patch
import pytest
from fluksio.sdk import SyncError
from fluksio.sdk.cli import _ask_params
definition = {"inputs": [{"spec": {"name": "lr", "dtype": "float"}}]}
with patch("builtins.input", side_effect=["fast"]):
with pytest.raises(SyncError, match="lr"):
_ask_params(definition)
def test_an_export_is_parsed_with_its_selection() -> None:
"""`export` is a group of two tables, and both take the same filters."""
from fluksio.cli import _parser
from fluksio.sdk.cli import cmd_export_metrics, cmd_export_runs
parser = _parser()
metrics = parser.parse_args(
[
"export",
"metrics",
"--flow",
"train",
"--run",
"a",
"--run",
"b",
"--name",
"loss,val",
"--stride",
"5",
]
)
assert metrics.func is cmd_export_metrics
assert metrics.run == ["a", "b"]
assert metrics.stride == 5
assert metrics.format == "csv"
runs = parser.parse_args(["export", "runs", "--params", "lr", "--format", "jsonl"])
assert runs.func is cmd_export_runs
assert runs.params == "lr"
assert runs.format == "jsonl"
def test_the_metric_names_are_asked_for_rather_than_guessed() -> None:
"""A name is flow-qualified, so `--list` is what says what would match."""
from fluksio.cli import _parser
from fluksio.sdk.cli import _list_names
parser = _parser()
assert parser.parse_args(["export", "metrics"]).list_names is False
assert parser.parse_args(["export", "metrics", "--list"]).list_names is True
class Engine:
def runs(self, flow="", limit=0, **filters):
assert filters == {"status": "ok"}
return [{"id": "r-empty"}, {"id": "r-1"}]
def metrics(self, run_id, name="", stride=1):
# The newest run failed before it measured anything; the next one
# carries the vocabulary.
return [] if run_id == "r-empty" else [{"name": "train.train_loss"}]
args = parser.parse_args(
["export", "metrics", "--flow", "train", "--status", "ok", "--list"]
)
assert _list_names(Engine(), args) == 0
def test_a_runs_artifact_is_listed_and_downloaded(tmp_path, monkeypatch) -> None:
"""`save_artifact` had no counterpart: the bytes were API-only."""
from fluksio.cli import _parser
from fluksio.sdk.cli import _artifacts
row = {
"name": "weights",
"node": "fit",
"digest": "sha256:abc",
"size": 3,
"media_type": "application/octet-stream",
"filename": "weights.npz",
}
class Engine:
def run(self, run_id):
assert run_id == "r-1"
return {"id": run_id, "status": "ok", "artifacts": [row]}
def download(self, digest):
assert digest == "sha256:abc"
return b"abc"
parser = _parser()
monkeypatch.chdir(tmp_path)
assert _artifacts(Engine(), parser.parse_args(["artifacts", "r-1"])) == 0
# Written under the name the node saved it as, not the message's.
assert _artifacts(Engine(), parser.parse_args(["artifacts", "r-1", "weights"])) == 0
assert (tmp_path / "weights.npz").read_bytes() == b"abc"
args = parser.parse_args(["artifacts", "r-1", "weights", "-o", "here.bin"])
assert _artifacts(Engine(), args) == 0
assert (tmp_path / "here.bin").read_bytes() == b"abc"
def test_an_engine_without_the_route_is_named_rather_than_404() -> None:
"""A client ships ahead of the engine; a flat 404 does not say so."""
from fluksio.sdk.cli import _too_old
class Old:
def summary(self):
return {"status": "ok", "version": "0.1.4"}
class Ancient:
def summary(self):
# Older than the field itself.
return {"status": "ok"}
assert "engine is 0.1.4" in _too_old(Old())
assert "engine is older" in _too_old(Ancient())
assert "pip install -U fluksio" in _too_old(Ancient())
def test_a_study_in_a_subfolder_is_found(tmp_path) -> None:
"""One directory per study is a layout; naming each is bookkeeping."""
from fluksio.sdk.cli import _below
(tmp_path / "dev" / "s1").mkdir(parents=True)
(tmp_path / "dev" / "s2" / "inner").mkdir(parents=True)
(tmp_path / "results").mkdir()
(tmp_path / "pkg").mkdir()
(tmp_path / ".hidden").mkdir()
(tmp_path / "dev" / "s1" / "study.py").write_text("")
(tmp_path / "dev" / "s2" / "inner" / "probe.py").write_text("")
(tmp_path / "results" / "notes.py").write_text("")
(tmp_path / "pkg" / "__init__.py").write_text("")
(tmp_path / "pkg" / "deep.py").write_text("")
(tmp_path / ".hidden" / "skip.py").write_text("")
found = {path.relative_to(tmp_path).as_posix() for path in _below(tmp_path)}
# However deep, plus packages whole — and nothing under a dot directory.
assert found == {
"dev/s1/study.py",
"dev/s2/inner/probe.py",
"results/notes.py",
"pkg",
}
def test_two_files_of_one_name_are_refused(tmp_path) -> None:
"""Python keeps one module per name, and a node's body imports by it."""
import pytest
from fluksio.sdk import SyncError
from fluksio.sdk.cli import _import, _module_of
for study in ("s1", "s2"):
(tmp_path / study).mkdir()
(tmp_path / study / "study.py").write_text("VALUE = 1\n")
first = tmp_path / "s1" / "study.py"
second = tmp_path / "s2" / "study.py"
_import(*_module_of(first), first)
with pytest.raises(SyncError, match="both import as 'study'"):
_import(*_module_of(second), second)
def test_run_and_sweep_take_what_to_sync() -> None:
from fluksio.cli import _parser
parser = _parser()
assert parser.parse_args(["sweep", "train", "--sync", "dev/s1"]).sync == ["dev/s1"]
args, _ = parser.parse_known_args(["run", "train", "--sync", "dev/s1"])
assert args.sync == ["dev/s1"]
# Nothing named means this directory, downwards.
assert parser.parse_args(["sweep", "train"]).sync == []
def test_serve_moves_off_a_port_that_is_taken() -> None:
"""A first start should not die on somebody else's dev server."""
import socket
from fluksio.cli import DEFAULT_PORT, _free_port, _parser
with socket.socket() as held:
held.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
held.bind(("127.0.0.1", 0))
held.listen(1)
taken = held.getsockname()[1]
assert _free_port("127.0.0.1", taken) == taken + 1
# A port that was asked for is not moved off: that is what asking means.
assert _parser().parse_args(["serve"]).port is None
assert _parser().parse_args(["serve", "--port", "9000"]).port == 9000
assert DEFAULT_PORT == 8000