def test_set_lazy_resolution(logger_mock):
""" Test if `@configurable` can resolve it's configuration lazily.
Also, test if `get_config` only lazily returns the configuration.
This test combines multiple tests because Python does not support unloading a module:
https://stackoverflow.com/questions/8781257/remove-an-imported-python-module
TODO: This doesn't set `set_lazy_resolution(False)` which forces a resolution for any unresolved
modules. In order to add more tests like so, we'd need to create more modules.
"""
set_lazy_resolution(True)
expected = ''
add_config({'_tests.other_module.configured': HParams(arg=expected)})
assert {} == get_config()
assert logger_mock.warning.call_count == 1
assert len(_get_skip_resolution()) == 1
logger_mock.reset_mock()
# NOTE: Test multiple similar config calls
add_config({'_tests.other_module.configured': HParams(arg=expected)})
assert len(_get_skip_resolution()) == 1
from _tests.other_module import configured
assert configured() == expected
assert len(get_config()) == 1
assert logger_mock.warning.call_count == 0
assert len(_get_skip_resolution()) == 0
def test_config_operators():
""" Test the `log_config`, `clear_config`, `add_config` and `get_config` together. It's
difficult to test them alone.
"""
@configurable
def configured(arg):
pass
assert len(get_config()) == 0
add_config({configured: HParams()})
log_config() # Smoke test
assert len(get_config()) == 1
clear_config()
assert len(get_config()) == 0
def test_merge_configs():
""" Test the merging of two configurations via `add_config`.
"""
@configurable
def configured(arg, arg_two):
pass
@configurable
def other_configured(arg):
pass
clear_config()
add_config({configured: HParams(arg='arg', arg_two='arg_two')})
add_config({other_configured: HParams()})
assert len(get_config()) == 2
assert get_config()[_get_function_signature(configured.__wrapped__)]['arg'] == 'arg'
add_config({configured: HParams(arg='gra')})
assert len(get_config()) == 2
assert get_config()[_get_function_signature(configured.__wrapped__)]['arg'] == 'gra'
assert get_config()[_get_function_signature(configured.__wrapped__)]['arg_two'] == 'arg_two'
clear_config()
def test_add_config__empty():
""" Test if `add_config` works with an empty config. """
clear_config()
add_config({})
assert {} == get_config()
