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test_cli.py
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test_cli.py
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import re
import subprocess
from subprocess import CalledProcessError
import tempfile
import pytest
import optuna
from optuna.cli import _Studies
from optuna.exceptions import CLIUsageError
from optuna.storages._base import DEFAULT_STUDY_NAME_PREFIX
from optuna.storages import RDBStorage
from optuna.study import StudyDirection
from optuna.testing.storage import StorageSupplier
from optuna import type_checking
if type_checking.TYPE_CHECKING:
from typing import List # NOQA
from optuna.trial import Trial # NOQA
def test_create_study_command():
# type: () -> None
with StorageSupplier("sqlite") as storage:
assert isinstance(storage, RDBStorage)
storage_url = str(storage.engine.url)
# Create study.
command = ["optuna", "create-study", "--storage", storage_url]
subprocess.check_call(command)
# Command output should be in name string format (no-name + UUID).
study_name = str(subprocess.check_output(command).decode().strip())
name_re = r"^no-name-[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$"
assert re.match(name_re, study_name) is not None
# study_name should be stored in storage.
study_id = storage.get_study_id_from_name(study_name)
assert study_id == 2
def test_create_study_command_with_study_name():
# type: () -> None
with StorageSupplier("sqlite") as storage:
assert isinstance(storage, RDBStorage)
storage_url = str(storage.engine.url)
study_name = "test_study"
# Create study with name.
command = ["optuna", "create-study", "--storage", storage_url, "--study-name", study_name]
study_name = str(subprocess.check_output(command).decode().strip())
# Check if study_name is stored in the storage.
study_id = storage.get_study_id_from_name(study_name)
assert storage.get_study_name_from_id(study_id) == study_name
def test_create_study_command_without_storage_url():
# type: () -> None
with pytest.raises(subprocess.CalledProcessError) as err:
subprocess.check_output(["optuna", "create-study"])
usage = err.value.output.decode()
assert usage.startswith("usage:")
def test_create_study_command_with_direction():
# type: () -> None
with StorageSupplier("sqlite") as storage:
assert isinstance(storage, RDBStorage)
storage_url = str(storage.engine.url)
command = ["optuna", "create-study", "--storage", storage_url, "--direction", "minimize"]
study_name = str(subprocess.check_output(command).decode().strip())
study_id = storage.get_study_id_from_name(study_name)
assert storage.get_study_direction(study_id) == StudyDirection.MINIMIZE
command = ["optuna", "create-study", "--storage", storage_url, "--direction", "maximize"]
study_name = str(subprocess.check_output(command).decode().strip())
study_id = storage.get_study_id_from_name(study_name)
assert storage.get_study_direction(study_id) == StudyDirection.MAXIMIZE
command = ["optuna", "create-study", "--storage", storage_url, "--direction", "test"]
# --direction should be either 'minimize' or 'maximize'.
with pytest.raises(subprocess.CalledProcessError):
subprocess.check_call(command)
def test_delete_study_command():
# type: () -> None
with StorageSupplier("sqlite") as storage:
assert isinstance(storage, RDBStorage)
storage_url = str(storage.engine.url)
study_name = "delete-study-test"
# Create study.
command = ["optuna", "create-study", "--storage", storage_url, "--study-name", study_name]
subprocess.check_call(command)
assert study_name in {s.study_name: s for s in storage.get_all_study_summaries()}
# Delete study.
command = ["optuna", "delete-study", "--storage", storage_url, "--study-name", study_name]
subprocess.check_call(command)
assert study_name not in {s.study_name: s for s in storage.get_all_study_summaries()}
def test_delete_study_command_without_storage_url():
# type: () -> None
with pytest.raises(subprocess.CalledProcessError):
subprocess.check_output(["optuna", "delete-study", "--study-name", "dummy_study"])
def test_study_set_user_attr_command():
# type: () -> None
with StorageSupplier("sqlite") as storage:
assert isinstance(storage, RDBStorage)
storage_url = str(storage.engine.url)
# Create study.
study_name = storage.get_study_name_from_id(storage.create_new_study())
base_command = [
"optuna",
"study",
"set-user-attr",
"--study-name",
study_name,
"--storage",
storage_url,
]
example_attrs = {"architecture": "ResNet", "baselen_score": "0.002"}
for key, value in example_attrs.items():
subprocess.check_call(base_command + ["--key", key, "--value", value])
# Attrs should be stored in storage.
study_id = storage.get_study_id_from_name(study_name)
study_user_attrs = storage.get_study_user_attrs(study_id)
assert len(study_user_attrs) == 2
assert all([study_user_attrs[k] == v for k, v in example_attrs.items()])
def test_studies_command():
# type: () -> None
with StorageSupplier("sqlite") as storage:
assert isinstance(storage, RDBStorage)
storage_url = str(storage.engine.url)
# First study.
study_1 = optuna.create_study(storage)
# Second study.
study_2 = optuna.create_study(storage, study_name="study_2")
study_2.optimize(objective_func, n_trials=10)
# Run command.
command = ["optuna", "studies", "--storage", storage_url]
output = str(subprocess.check_output(command).decode().strip())
rows = output.split("\n")
def get_row_elements(row_index):
# type: (int) -> List[str]
return [r.strip() for r in rows[row_index].split("|")[1:-1]]
assert len(rows) == 6
assert tuple(get_row_elements(1)) == _Studies._study_list_header
# Check study_name and n_trials for the first study.
elms = get_row_elements(3)
assert elms[0] == study_1.study_name
assert elms[2] == "0"
# Check study_name and n_trials for the second study.
elms = get_row_elements(4)
assert elms[0] == study_2.study_name
assert elms[2] == "10"
def test_create_study_command_with_skip_if_exists():
# type: () -> None
with StorageSupplier("sqlite") as storage:
assert isinstance(storage, RDBStorage)
storage_url = str(storage.engine.url)
study_name = "test_study"
# Create study with name.
command = ["optuna", "create-study", "--storage", storage_url, "--study-name", study_name]
study_name = str(subprocess.check_output(command).decode().strip())
# Check if study_name is stored in the storage.
study_id = storage.get_study_id_from_name(study_name)
assert storage.get_study_name_from_id(study_id) == study_name
# Try to create the same name study without `--skip-if-exists` flag (error).
command = ["optuna", "create-study", "--storage", storage_url, "--study-name", study_name]
with pytest.raises(subprocess.CalledProcessError):
subprocess.check_output(command)
# Try to create the same name study with `--skip-if-exists` flag (OK).
command = [
"optuna",
"create-study",
"--storage",
storage_url,
"--study-name",
study_name,
"--skip-if-exists",
]
study_name = str(subprocess.check_output(command).decode().strip())
new_study_id = storage.get_study_id_from_name(study_name)
assert study_id == new_study_id # The existing study instance is reused.
def test_dashboard_command():
# type: () -> None
with StorageSupplier("sqlite") as storage, tempfile.NamedTemporaryFile("r") as tf_report:
assert isinstance(storage, RDBStorage)
storage_url = str(storage.engine.url)
study_name = storage.get_study_name_from_id(storage.create_new_study())
command = [
"optuna",
"dashboard",
"--study-name",
study_name,
"--out",
tf_report.name,
"--storage",
storage_url,
]
subprocess.check_call(command)
html = tf_report.read()
assert "<body>" in html
assert "bokeh" in html
@pytest.mark.parametrize(
"origins", [["192.168.111.1:5006"], ["192.168.111.1:5006", "192.168.111.2:5006"]]
)
def test_dashboard_command_with_allow_websocket_origin(origins):
# type: (List[str]) -> None
with StorageSupplier("sqlite") as storage, tempfile.NamedTemporaryFile("r") as tf_report:
assert isinstance(storage, RDBStorage)
storage_url = str(storage.engine.url)
study_name = storage.get_study_name_from_id(storage.create_new_study())
command = [
"optuna",
"dashboard",
"--study-name",
study_name,
"--out",
tf_report.name,
"--storage",
storage_url,
]
for origin in origins:
command.extend(["--allow-websocket-origin", origin])
subprocess.check_call(command)
html = tf_report.read()
assert "<body>" in html
assert "bokeh" in html
# An example of objective functions for testing study optimize command
def objective_func(trial):
# type: (Trial) -> float
x = trial.suggest_uniform("x", -10, 10)
return (x + 5) ** 2
def test_study_optimize_command():
# type: () -> None
with StorageSupplier("sqlite") as storage:
assert isinstance(storage, RDBStorage)
storage_url = str(storage.engine.url)
study_name = storage.get_study_name_from_id(storage.create_new_study())
command = [
"optuna",
"study",
"optimize",
"--study-name",
study_name,
"--n-trials",
"10",
__file__,
"objective_func",
"--storage",
storage_url,
]
subprocess.check_call(command)
study = optuna.load_study(storage=storage_url, study_name=study_name)
assert len(study.trials) == 10
assert "x" in study.best_params
# Check if a default value of study_name is stored in the storage.
assert storage.get_study_name_from_id(study._study_id).startswith(
DEFAULT_STUDY_NAME_PREFIX
)
def test_study_optimize_command_inconsistent_args():
# type: () -> None
with tempfile.NamedTemporaryFile() as tf:
db_url = "sqlite:///{}".format(tf.name)
# --study-name argument is missing.
with pytest.raises(subprocess.CalledProcessError):
subprocess.check_call(
[
"optuna",
"study",
"optimize",
"--storage",
db_url,
"--n-trials",
"10",
__file__,
"objective_func",
]
)
def test_empty_argv():
# type: () -> None
command_empty = ["optuna"]
command_empty_output = str(subprocess.check_output(command_empty))
command_help = ["optuna", "help"]
command_help_output = str(subprocess.check_output(command_help))
assert command_empty_output == command_help_output
def test_check_storage_url():
# type: () -> None
storage_in_args = "sqlite:///args.db"
assert storage_in_args == optuna.cli._check_storage_url(storage_in_args)
with pytest.raises(CLIUsageError):
optuna.cli._check_storage_url(None)
def test_storage_upgrade_command():
# type: () -> None
with StorageSupplier("sqlite") as storage:
assert isinstance(storage, RDBStorage)
storage_url = str(storage.engine.url)
command = ["optuna", "storage", "upgrade"]
with pytest.raises(CalledProcessError):
subprocess.check_call(command)
command.extend(["--storage", storage_url])
subprocess.check_call(command)