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import re
from typing import Any, List
import pytest
from hydra._internal.config_search_path_impl import ConfigSearchPathImpl
from hydra.core.config_search_path import SearchPathQuery
from hydra.core.global_hydra import GlobalHydra
from hydra.errors import HydraException
from hydra.experimental import (
compose,
initialize,
initialize_ctx,
initialize_with_file,
initialize_with_module,
)
from hydra.test_utils.test_utils import chdir_hydra_root
chdir_hydra_root()
def test_initialize(hydra_restore_singletons: Any) -> None:
assert not GlobalHydra().is_initialized()
initialize(config_path=None)
assert GlobalHydra().is_initialized()
def test_initialize_with_config_path(hydra_restore_singletons: Any) -> None:
assert not GlobalHydra().is_initialized()
initialize(config_path="../hydra/test_utils/configs")
assert GlobalHydra().is_initialized()
gh = GlobalHydra.instance()
assert gh.hydra is not None
config_search_path = gh.hydra.config_loader.get_search_path()
assert isinstance(config_search_path, ConfigSearchPathImpl)
idx = config_search_path.find_first_match(
SearchPathQuery(provider="main", search_path=None)
)
assert idx != -1
@pytest.mark.usefixtures("hydra_restore_singletons")
@pytest.mark.parametrize("config_path", ["../hydra/test_utils/configs"])
@pytest.mark.parametrize(
"config_file, overrides, expected",
[
(None, [], {}),
(None, ["+foo=bar"], {"foo": "bar"}),
("compose", [], {"foo": 10, "bar": 100}),
("compose", ["group1=file2"], {"foo": 20, "bar": 100}),
],
)
class TestCompose:
def test_compose_config(
self, config_path: str, config_file: str, overrides: List[str], expected: Any,
) -> None:
with initialize_ctx(config_path=config_path):
cfg = compose(config_file, overrides)
assert cfg == expected
def test_strict_failure_global_strict(
self, config_path: str, config_file: str, overrides: List[str], expected: Any,
) -> None:
with initialize_ctx(config_path=config_path):
# default strict True, call is unspecified
overrides.append("fooooooooo=bar")
with pytest.raises(HydraException):
compose(config_file, overrides)
def test_strict_deprecation_warning(hydra_restore_singletons: Any) -> None:
msg = (
"\n@hydra.main(strict) flag is deprecated and will removed in the next version."
"\nSee https://hydra.cc/docs/next/upgrades/0.11_to_1.0/strict_mode_flag_deprecated"
)
with pytest.warns(expected_warning=UserWarning, match=re.escape(msg)):
initialize(config_path=None, strict=True)
@pytest.mark.usefixtures("hydra_restore_singletons")
@pytest.mark.parametrize(
"config_path", ["../hydra/test_utils/configs/cloud_infra_example"]
)
@pytest.mark.parametrize(
"config_file, overrides, expected",
[
# empty
(None, [], {}),
(
None,
["+db=sqlite"],
{
"db": {
"driver": "sqlite",
"user": "???",
"pass": "???",
"file": "test.db",
}
},
),
(
None,
["+db=mysql", "+environment=production"],
{"db": {"driver": "mysql", "user": "mysql", "pass": "r4Zn*jQ9JB1Rz2kfz"}},
),
(
None,
["+db=mysql", "+environment=production", "+application=donkey"],
{
"db": {"driver": "mysql", "user": "mysql", "pass": "r4Zn*jQ9JB1Rz2kfz"},
"donkey": {"name": "kong", "rank": "king"},
},
),
(
None,
[
"+db=mysql",
"+environment=production",
"+application=donkey",
"donkey.name=Dapple",
"donkey.rank=squire_donkey",
],
{
"db": {"driver": "mysql", "user": "mysql", "pass": "r4Zn*jQ9JB1Rz2kfz"},
"donkey": {"name": "Dapple", "rank": "squire_donkey"},
},
),
# load config
(
"config",
[],
{
"db": {
"driver": "sqlite",
"user": "test",
"pass": "test",
"file": "test.db",
},
"cloud": {"name": "local", "host": "localhost", "port": 9876},
},
),
(
"config",
["environment=production", "db=mysql"],
{
"db": {"driver": "mysql", "user": "mysql", "pass": "r4Zn*jQ9JB1Rz2kfz"},
"cloud": {"name": "local", "host": "localhost", "port": 9876},
},
),
],
)
class TestComposeCloudInfraExample:
def test_compose(
self, config_path: str, config_file: str, overrides: List[str], expected: Any,
) -> None:
with initialize_ctx(config_path=config_path):
ret = compose(config_file, overrides)
assert ret == expected
def test_missing_init_py_error(hydra_restore_singletons: Any) -> None:
with pytest.raises(
Exception,
match=re.escape(
"Unexpected error checking content of 'hydra.test_utils.configs.missing_init_py', "
"did you forget an __init__.py?"
),
):
with initialize_ctx(config_path="../hydra/test_utils/configs/missing_init_py"):
hydra = GlobalHydra.instance().hydra
assert hydra is not None
hydra.compose_config(config_name=None, overrides=[])
def test_initialize_with_file(hydra_restore_singletons: Any) -> None:
initialize_with_file(
file="tests/test_apps/app_with_cfg_groups/my_app.py", config_path="conf"
)
assert compose(config_name="config") == {
"optimizer": {"type": "nesterov", "lr": 0.001}
}
def test_initialize_with_module(hydra_restore_singletons: Any) -> None:
initialize_with_module(
module="tests.test_apps.app_with_cfg_groups.my_app", config_path="conf"
)
assert compose(config_name="config") == {
"optimizer": {"type": "nesterov", "lr": 0.001}
}
def test_hydra_main_passthrough(hydra_restore_singletons: Any) -> None:
initialize_with_file(
file="tests/test_apps/app_with_cfg_groups/my_app.py", config_path="conf"
)
from tests.test_apps.app_with_cfg_groups.my_app import my_app
cfg = compose(config_name="config", overrides=["optimizer.lr=0.1"])
assert my_app(cfg) == {"optimizer": {"type": "nesterov", "lr": 0.1}}
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