python-dependency-injector/tests/unit/providers/test_configuration_py2_py3.py
Roman Mogylatov dbbf5fdcf1
462 Config.from_value() (#465)
* Implement .from_value() method for config provider

* Add tests for config.from_value() method

* Add example for config.from_value()

* Add docs

* Update changelog
2021-06-13 22:05:29 -04:00

1401 lines
50 KiB
Python

"""Dependency injector config providers unit tests."""
import contextlib
import decimal
import os
import sys
import tempfile
import unittest
from dependency_injector import containers, providers, errors
try:
import yaml
except ImportError:
yaml = None
try:
import pydantic
except ImportError:
pydantic = None
class ConfigTests(unittest.TestCase):
def setUp(self):
self.config = providers.Configuration(name='config')
def tearDown(self):
del self.config
def test_init_optional(self):
provider = providers.Configuration()
provider.set_name('myconfig')
provider.set_default({'foo': 'bar'})
provider.set_strict(True)
self.assertEqual(provider.get_name(), 'myconfig')
self.assertEqual(provider.get_default(), {'foo': 'bar'})
self.assertTrue(provider.get_strict())
def test_set_name_returns_self(self):
provider = providers.Configuration()
self.assertIs(provider.set_name('myconfig'), provider)
def test_set_default_returns_self(self):
provider = providers.Configuration()
self.assertIs(provider.set_default({}), provider)
def test_set_strict_returns_self(self):
provider = providers.Configuration()
self.assertIs(provider.set_strict(True), provider)
def test_default_name(self):
config = providers.Configuration()
self.assertEqual(config.get_name(), 'config')
def test_providers_are_providers(self):
self.assertTrue(providers.is_provider(self.config.a))
self.assertTrue(providers.is_provider(self.config.a.b))
self.assertTrue(providers.is_provider(self.config.a.b.c))
self.assertTrue(providers.is_provider(self.config.a.b.d))
def test_providers_are_not_delegates(self):
self.assertFalse(providers.is_delegated(self.config.a))
self.assertFalse(providers.is_delegated(self.config.a.b))
self.assertFalse(providers.is_delegated(self.config.a.b.c))
self.assertFalse(providers.is_delegated(self.config.a.b.d))
def test_providers_identity(self):
self.assertIs(self.config.a, self.config.a)
self.assertIs(self.config.a.b, self.config.a.b)
self.assertIs(self.config.a.b.c, self.config.a.b.c)
self.assertIs(self.config.a.b.d, self.config.a.b.d)
def test_get_name(self):
self.assertEqual(self.config.a.b.c.get_name(), 'config.a.b.c')
def test_providers_value_setting(self):
a = self.config.a
ab = self.config.a.b
abc = self.config.a.b.c
abd = self.config.a.b.d
self.config.update({'a': {'b': {'c': 1, 'd': 2}}})
self.assertEqual(a(), {'b': {'c': 1, 'd': 2}})
self.assertEqual(ab(), {'c': 1, 'd': 2})
self.assertEqual(abc(), 1)
self.assertEqual(abd(), 2)
def test_providers_with_already_set_value(self):
self.config.update({'a': {'b': {'c': 1, 'd': 2}}})
a = self.config.a
ab = self.config.a.b
abc = self.config.a.b.c
abd = self.config.a.b.d
self.assertEqual(a(), {'b': {'c': 1, 'd': 2}})
self.assertEqual(ab(), {'c': 1, 'd': 2})
self.assertEqual(abc(), 1)
self.assertEqual(abd(), 2)
def test_as_int(self):
value_provider = providers.Callable(lambda value: value, self.config.test.as_int())
self.config.from_dict({'test': '123'})
value = value_provider()
self.assertEqual(value, 123)
def test_as_float(self):
value_provider = providers.Callable(lambda value: value, self.config.test.as_float())
self.config.from_dict({'test': '123.123'})
value = value_provider()
self.assertEqual(value, 123.123)
def test_as_(self):
value_provider = providers.Callable(
lambda value: value,
self.config.test.as_(decimal.Decimal),
)
self.config.from_dict({'test': '123.123'})
value = value_provider()
self.assertEqual(value, decimal.Decimal('123.123'))
@unittest.skipIf(sys.version_info[:2] == (2, 7), 'Python 2.7 does not support this assert')
def test_required(self):
provider = providers.Callable(
lambda value: value,
self.config.a.required(),
)
with self.assertRaisesRegex(errors.Error, 'Undefined configuration option "config.a"'):
provider()
def test_required_defined_none(self):
provider = providers.Callable(
lambda value: value,
self.config.a.required(),
)
self.config.from_dict({'a': None})
self.assertIsNone(provider())
def test_required_no_side_effect(self):
_ = providers.Callable(
lambda value: value,
self.config.a.required(),
)
self.assertIsNone(self.config.a())
def test_required_as_(self):
provider = providers.List(
self.config.int_test.required().as_int(),
self.config.float_test.required().as_float(),
self.config._as_test.required().as_(decimal.Decimal),
)
self.config.from_dict({'int_test': '1', 'float_test': '2.0', '_as_test': '3.0'})
self.assertEqual(provider(), [1, 2.0, decimal.Decimal('3.0')])
def test_providers_value_override(self):
a = self.config.a
ab = self.config.a.b
abc = self.config.a.b.c
abd = self.config.a.b.d
self.config.override({'a': {'b': {'c': 1, 'd': 2}}})
self.assertEqual(a(), {'b': {'c': 1, 'd': 2}})
self.assertEqual(ab(), {'c': 1, 'd': 2})
self.assertEqual(abc(), 1)
self.assertEqual(abd(), 2)
def test_configuration_option_override_and_reset_override(self):
# Bug: https://github.com/ets-labs/python-dependency-injector/issues/319
self.config.from_dict({'a': {'b': {'c': 1}}})
self.assertEqual(self.config.a.b.c(), 1)
with self.config.set('a.b.c', 'xxx'):
self.assertEqual(self.config.a.b.c(), 'xxx')
self.assertEqual(self.config.a.b.c(), 1)
with self.config.a.b.c.override('yyy'):
self.assertEqual(self.config.a.b.c(), 'yyy')
self.assertEqual(self.config.a.b.c(), 1)
def test_providers_with_already_overridden_value(self):
self.config.override({'a': {'b': {'c': 1, 'd': 2}}})
a = self.config.a
ab = self.config.a.b
abc = self.config.a.b.c
abd = self.config.a.b.d
self.assertEqual(a(), {'b': {'c': 1, 'd': 2}})
self.assertEqual(ab(), {'c': 1, 'd': 2})
self.assertEqual(abc(), 1)
self.assertEqual(abd(), 2)
def test_providers_with_default_value(self):
self.config = providers.Configuration(
name='config', default={'a': {'b': {'c': 1, 'd': 2}}})
a = self.config.a
ab = self.config.a.b
abc = self.config.a.b.c
abd = self.config.a.b.d
self.assertEqual(a(), {'b': {'c': 1, 'd': 2}})
self.assertEqual(ab(), {'c': 1, 'd': 2})
self.assertEqual(abc(), 1)
self.assertEqual(abd(), 2)
def test_providers_with_default_value_overriding(self):
self.config = providers.Configuration(
name='config', default={'a': {'b': {'c': 1, 'd': 2}}})
self.assertEqual(self.config.a(), {'b': {'c': 1, 'd': 2}})
self.assertEqual(self.config.a.b(), {'c': 1, 'd': 2})
self.assertEqual(self.config.a.b.c(), 1)
self.assertEqual(self.config.a.b.d(), 2)
self.config.override({'a': {'b': {'c': 3, 'd': 4}}})
self.assertEqual(self.config.a(), {'b': {'c': 3, 'd': 4}})
self.assertEqual(self.config.a.b(), {'c': 3, 'd': 4})
self.assertEqual(self.config.a.b.c(), 3)
self.assertEqual(self.config.a.b.d(), 4)
self.config.reset_override()
self.assertEqual(self.config.a(), {'b': {'c': 1, 'd': 2}})
self.assertEqual(self.config.a.b(), {'c': 1, 'd': 2})
self.assertEqual(self.config.a.b.c(), 1)
self.assertEqual(self.config.a.b.d(), 2)
def test_value_of_undefined_option(self):
self.assertIsNone(self.config.a())
@unittest.skipIf(sys.version_info[:2] == (2, 7), 'Python 2.7 does not support this assert')
def test_value_of_undefined_option_in_strict_mode(self):
self.config = providers.Configuration(strict=True)
with self.assertRaisesRegex(errors.Error, 'Undefined configuration option "config.a"'):
self.config.a()
@unittest.skipIf(sys.version_info[:2] == (2, 7), 'Python 2.7 does not support this assert')
def test_value_of_undefined_option_with_root_none_in_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.override(None)
with self.assertRaisesRegex(errors.Error, 'Undefined configuration option "config.a"'):
self.config.a()
def test_value_of_defined_none_option_in_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.from_dict({'a': None})
self.assertIsNone(self.config.a())
def test_getting_of_special_attributes(self):
with self.assertRaises(AttributeError):
self.config.__name__
def test_getting_of_special_attributes_from_child(self):
a = self.config.a
with self.assertRaises(AttributeError):
a.__name__
def test_context_manager_alias(self):
class Container(containers.DeclarativeContainer):
config = providers.Configuration()
container = Container()
with container.config as cfg:
cfg.override({'foo': 'foo', 'bar': 'bar'})
self.assertEqual(container.config(), {'foo': 'foo', 'bar': 'bar'})
self.assertEqual(cfg(), {'foo': 'foo', 'bar': 'bar'})
self.assertIs(container.config, cfg)
def test_option_context_manager_alias(self):
class Container(containers.DeclarativeContainer):
config = providers.Configuration()
container = Container()
with container.config.option as opt:
opt.override({'foo': 'foo', 'bar': 'bar'})
self.assertEqual(container.config(), {'option': {'foo': 'foo', 'bar': 'bar'}})
self.assertEqual(container.config.option(), {'foo': 'foo', 'bar': 'bar'})
self.assertEqual(opt(), {'foo': 'foo', 'bar': 'bar'})
self.assertIs(container.config.option, opt)
def test_missing_key(self):
# See: https://github.com/ets-labs/python-dependency-injector/issues/358
self.config.override(None)
value = self.config.key()
self.assertIsNone(value)
def test_deepcopy(self):
provider = providers.Configuration('config')
provider_copy = providers.deepcopy(provider)
self.assertIsNot(provider, provider_copy)
self.assertIsInstance(provider, providers.Configuration)
def test_deepcopy_from_memo(self):
provider = providers.Configuration('config')
provider_copy_memo = providers.Configuration('config')
provider_copy = providers.deepcopy(
provider, memo={id(provider): provider_copy_memo})
self.assertIs(provider_copy, provider_copy_memo)
def test_deepcopy_overridden(self):
provider = providers.Configuration('config')
object_provider = providers.Object(object())
provider.override(object_provider)
provider_copy = providers.deepcopy(provider)
object_provider_copy = provider_copy.overridden[0]
self.assertIsNot(provider, provider_copy)
self.assertIsInstance(provider, providers.Configuration)
self.assertIsNot(object_provider, object_provider_copy)
self.assertIsInstance(object_provider_copy, providers.Object)
def test_repr(self):
self.assertEqual(repr(self.config),
'<dependency_injector.providers.'
'Configuration({0}) at {1}>'.format(
repr('config'),
hex(id(self.config))))
def test_repr_child(self):
self.assertEqual(repr(self.config.a.b.c),
'<dependency_injector.providers.'
'ConfigurationOption({0}) at {1}>'.format(
repr('config.a.b.c'),
hex(id(self.config.a.b.c))))
class ConfigLinkingTests(unittest.TestCase):
class TestCore(containers.DeclarativeContainer):
config = providers.Configuration('core')
value_getter = providers.Callable(lambda _: _, config.value)
class TestServices(containers.DeclarativeContainer):
config = providers.Configuration('services')
value_getter = providers.Callable(lambda _: _, config.value)
def test(self):
root_config = providers.Configuration('main')
core = self.TestCore(config=root_config.core)
services = self.TestServices(config=root_config.services)
root_config.override(
{
'core': {
'value': 'core',
},
'services': {
'value': 'services',
},
},
)
self.assertEqual(core.config(), {'value': 'core'})
self.assertEqual(core.config.value(), 'core')
self.assertEqual(core.value_getter(), 'core')
self.assertEqual(services.config(), {'value': 'services'})
self.assertEqual(services.config.value(), 'services')
self.assertEqual(services.value_getter(), 'services')
def test_double_override(self):
root_config = providers.Configuration('main')
core = self.TestCore(config=root_config.core)
services = self.TestServices(config=root_config.services)
root_config.override(
{
'core': {
'value': 'core1',
},
'services': {
'value': 'services1',
},
},
)
root_config.override(
{
'core': {
'value': 'core2',
},
'services': {
'value': 'services2',
},
},
)
self.assertEqual(core.config(), {'value': 'core2'})
self.assertEqual(core.config.value(), 'core2')
self.assertEqual(core.value_getter(), 'core2')
self.assertEqual(services.config(), {'value': 'services2'})
self.assertEqual(services.config.value(), 'services2')
self.assertEqual(services.value_getter(), 'services2')
def test_reset_overriding_cache(self):
# See: https://github.com/ets-labs/python-dependency-injector/issues/428
class Core(containers.DeclarativeContainer):
config = providers.Configuration()
greetings = providers.Factory(str, config.greeting)
class Application(containers.DeclarativeContainer):
config = providers.Configuration()
core = providers.Container(
Core,
config=config,
)
greetings = providers.Factory(str, config.greeting)
container = Application()
container.config.set('greeting', 'Hello World')
self.assertEqual(container.greetings(), 'Hello World')
self.assertEqual(container.core.greetings(), 'Hello World')
container.config.set('greeting', 'Hello Bob')
self.assertEqual(container.greetings(), 'Hello Bob')
self.assertEqual(container.core.greetings(), 'Hello Bob')
def test_reset_overriding_cache_for_option(self):
# See: https://github.com/ets-labs/python-dependency-injector/issues/428
class Core(containers.DeclarativeContainer):
config = providers.Configuration()
greetings = providers.Factory(str, config.greeting)
class Application(containers.DeclarativeContainer):
config = providers.Configuration()
core = providers.Container(
Core,
config=config.option,
)
greetings = providers.Factory(str, config.option.greeting)
container = Application()
container.config.set('option.greeting', 'Hello World')
self.assertEqual(container.greetings(), 'Hello World')
self.assertEqual(container.core.greetings(), 'Hello World')
container.config.set('option.greeting', 'Hello Bob')
self.assertEqual(container.greetings(), 'Hello Bob')
self.assertEqual(container.core.greetings(), 'Hello Bob')
class ConfigFromIniTests(unittest.TestCase):
def setUp(self):
self.config = providers.Configuration(name='config')
_, self.config_file_1 = tempfile.mkstemp()
with open(self.config_file_1, 'w') as config_file:
config_file.write(
'[section1]\n'
'value1=1\n'
'\n'
'[section2]\n'
'value2=2\n'
)
_, self.config_file_2 = tempfile.mkstemp()
with open(self.config_file_2, 'w') as config_file:
config_file.write(
'[section1]\n'
'value1=11\n'
'value11=11\n'
'[section3]\n'
'value3=3\n'
)
def tearDown(self):
del self.config
os.unlink(self.config_file_1)
os.unlink(self.config_file_2)
def test(self):
self.config.from_ini(self.config_file_1)
self.assertEqual(self.config(), {'section1': {'value1': '1'}, 'section2': {'value2': '2'}})
self.assertEqual(self.config.section1(), {'value1': '1'})
self.assertEqual(self.config.section1.value1(), '1')
self.assertEqual(self.config.section2(), {'value2': '2'})
self.assertEqual(self.config.section2.value2(), '2')
def test_option(self):
self.config.option.from_ini(self.config_file_1)
self.assertEqual(self.config(), {'option': {'section1': {'value1': '1'}, 'section2': {'value2': '2'}}})
self.assertEqual(self.config.option(), {'section1': {'value1': '1'}, 'section2': {'value2': '2'}})
self.assertEqual(self.config.option.section1(), {'value1': '1'})
self.assertEqual(self.config.option.section1.value1(), '1')
self.assertEqual(self.config.option.section2(), {'value2': '2'})
self.assertEqual(self.config.option.section2.value2(), '2')
def test_merge(self):
self.config.from_ini(self.config_file_1)
self.config.from_ini(self.config_file_2)
self.assertEqual(
self.config(),
{
'section1': {
'value1': '11',
'value11': '11',
},
'section2': {
'value2': '2',
},
'section3': {
'value3': '3',
},
},
)
self.assertEqual(self.config.section1(), {'value1': '11', 'value11': '11'})
self.assertEqual(self.config.section1.value1(), '11')
self.assertEqual(self.config.section1.value11(), '11')
self.assertEqual(self.config.section2(), {'value2': '2'})
self.assertEqual(self.config.section2.value2(), '2')
self.assertEqual(self.config.section3(), {'value3': '3'})
self.assertEqual(self.config.section3.value3(), '3')
def test_file_does_not_exist(self):
self.config.from_ini('./does_not_exist.ini')
self.assertEqual(self.config(), {})
def test_file_does_not_exist_strict_mode(self):
self.config = providers.Configuration(strict=True)
with self.assertRaises(IOError):
self.config.from_ini('./does_not_exist.ini')
def test_option_file_does_not_exist(self):
self.config.option.from_ini('does_not_exist.ini')
self.assertIsNone(self.config.option.undefined())
def test_option_file_does_not_exist_strict_mode(self):
self.config = providers.Configuration(strict=True)
with self.assertRaises(IOError):
self.config.option.from_ini('./does_not_exist.ini')
def test_required_file_does_not_exist(self):
with self.assertRaises(IOError):
self.config.from_ini('./does_not_exist.ini', required=True)
def test_required_option_file_does_not_exist(self):
with self.assertRaises(IOError):
self.config.option.from_ini('./does_not_exist.ini', required=True)
def test_not_required_file_does_not_exist_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.from_ini('./does_not_exist.ini', required=False)
self.assertEqual(self.config(), {})
def test_not_required_option_file_does_not_exist_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.option.from_ini('./does_not_exist.ini', required=False)
with self.assertRaises(errors.Error):
self.config.option()
class ConfigFromIniWithEnvInterpolationTests(unittest.TestCase):
def setUp(self):
self.config = providers.Configuration(name='config')
os.environ['CONFIG_TEST_ENV'] = 'test-value'
os.environ['CONFIG_TEST_PATH'] = 'test-path'
_, self.config_file = tempfile.mkstemp()
with open(self.config_file, 'w') as config_file:
config_file.write(
'[section1]\n'
'value1=${CONFIG_TEST_ENV}\n'
'value2=${CONFIG_TEST_PATH}/path\n'
)
def tearDown(self):
del self.config
os.environ.pop('CONFIG_TEST_ENV', None)
os.environ.pop('CONFIG_TEST_PATH', None)
os.unlink(self.config_file)
def test_env_variable_interpolation(self):
self.config.from_ini(self.config_file)
self.assertEqual(
self.config(),
{
'section1': {
'value1': 'test-value',
'value2': 'test-path/path',
},
},
)
self.assertEqual(
self.config.section1(),
{
'value1': 'test-value',
'value2': 'test-path/path',
},
)
self.assertEqual(self.config.section1.value1(), 'test-value')
self.assertEqual(self.config.section1.value2(), 'test-path/path')
def test_missing_envs(self):
del os.environ['CONFIG_TEST_ENV']
del os.environ['CONFIG_TEST_PATH']
self.config.from_ini(self.config_file)
self.assertEqual(
self.config(),
{
'section1': {
'value1': '${CONFIG_TEST_ENV}',
'value2': '${CONFIG_TEST_PATH}/path',
},
},
)
self.assertEqual(
self.config.section1(),
{
'value1': '${CONFIG_TEST_ENV}',
'value2': '${CONFIG_TEST_PATH}/path',
},
)
self.assertEqual(self.config.section1.value1(), '${CONFIG_TEST_ENV}')
self.assertEqual(self.config.section1.value2(), '${CONFIG_TEST_PATH}/path')
def test_default_values(self):
os.environ['DEFINED'] = 'defined'
self.addCleanup(os.environ.pop, 'DEFINED')
with open(self.config_file, 'w') as config_file:
config_file.write(
'[section]\n'
'defined_with_default=${DEFINED:default}\n'
'undefined_with_default=${UNDEFINED:default}\n'
'complex=${DEFINED}/path/${DEFINED:default}/${UNDEFINED}/${UNDEFINED:default}\n'
)
self.config.from_ini(self.config_file)
self.assertEqual(
self.config.section(),
{
'defined_with_default': 'defined',
'undefined_with_default': 'default',
'complex': 'defined/path/defined/${UNDEFINED}/default',
},
)
class ConfigFromYamlTests(unittest.TestCase):
def setUp(self):
self.config = providers.Configuration(name='config')
_, self.config_file_1 = tempfile.mkstemp()
with open(self.config_file_1, 'w') as config_file:
config_file.write(
'section1:\n'
' value1: 1\n'
'\n'
'section2:\n'
' value2: 2\n'
)
_, self.config_file_2 = tempfile.mkstemp()
with open(self.config_file_2, 'w') as config_file:
config_file.write(
'section1:\n'
' value1: 11\n'
' value11: 11\n'
'section3:\n'
' value3: 3\n'
)
def tearDown(self):
del self.config
os.unlink(self.config_file_1)
os.unlink(self.config_file_2)
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test(self):
self.config.from_yaml(self.config_file_1)
self.assertEqual(self.config(), {'section1': {'value1': 1}, 'section2': {'value2': 2}})
self.assertEqual(self.config.section1(), {'value1': 1})
self.assertEqual(self.config.section1.value1(), 1)
self.assertEqual(self.config.section2(), {'value2': 2})
self.assertEqual(self.config.section2.value2(), 2)
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_merge(self):
self.config.from_yaml(self.config_file_1)
self.config.from_yaml(self.config_file_2)
self.assertEqual(
self.config(),
{
'section1': {
'value1': 11,
'value11': 11,
},
'section2': {
'value2': 2,
},
'section3': {
'value3': 3,
},
},
)
self.assertEqual(self.config.section1(), {'value1': 11, 'value11': 11})
self.assertEqual(self.config.section1.value1(), 11)
self.assertEqual(self.config.section1.value11(), 11)
self.assertEqual(self.config.section2(), {'value2': 2})
self.assertEqual(self.config.section2.value2(), 2)
self.assertEqual(self.config.section3(), {'value3': 3})
self.assertEqual(self.config.section3.value3(), 3)
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_file_does_not_exist(self):
self.config.from_yaml('./does_not_exist.yml')
self.assertEqual(self.config(), {})
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_file_does_not_exist_strict_mode(self):
self.config = providers.Configuration(strict=True)
with self.assertRaises(IOError):
self.config.from_yaml('./does_not_exist.yml')
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_option_file_does_not_exist(self):
self.config.option.from_yaml('./does_not_exist.yml')
self.assertIsNone(self.config.option())
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_option_file_does_not_exist_strict_mode(self):
self.config = providers.Configuration(strict=True)
with self.assertRaises(IOError):
self.config.option.from_yaml('./does_not_exist.yml')
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_required_file_does_not_exist(self):
with self.assertRaises(IOError):
self.config.from_yaml('./does_not_exist.yml', required=True)
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_required_option_file_does_not_exist(self):
with self.assertRaises(IOError):
self.config.option.from_yaml('./does_not_exist.yml', required=True)
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_not_required_file_does_not_exist_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.from_yaml('./does_not_exist.yml', required=False)
self.assertEqual(self.config(), {})
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_not_required_option_file_does_not_exist_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.option.from_yaml('./does_not_exist.yml', required=False)
with self.assertRaises(errors.Error):
self.config.option()
def test_no_yaml_installed(self):
@contextlib.contextmanager
def no_yaml_module():
yaml = providers.yaml
providers.yaml = None
yield
providers.yaml = yaml
with no_yaml_module():
with self.assertRaises(errors.Error) as error:
self.config.from_yaml(self.config_file_1)
self.assertEqual(
error.exception.args[0],
'Unable to load yaml configuration - PyYAML is not installed. '
'Install PyYAML or install Dependency Injector with yaml extras: '
'"pip install dependency-injector[yaml]"',
)
def test_option_no_yaml_installed(self):
@contextlib.contextmanager
def no_yaml_module():
yaml = providers.yaml
providers.yaml = None
yield
providers.yaml = yaml
with no_yaml_module():
with self.assertRaises(errors.Error) as error:
self.config.option.from_yaml(self.config_file_1)
self.assertEqual(
error.exception.args[0],
'Unable to load yaml configuration - PyYAML is not installed. '
'Install PyYAML or install Dependency Injector with yaml extras: '
'"pip install dependency-injector[yaml]"',
)
class ConfigFromYamlWithEnvInterpolationTests(unittest.TestCase):
def setUp(self):
self.config = providers.Configuration(name='config')
os.environ['CONFIG_TEST_ENV'] = 'test-value'
os.environ['CONFIG_TEST_PATH'] = 'test-path'
_, self.config_file = tempfile.mkstemp()
with open(self.config_file, 'w') as config_file:
config_file.write(
'section1:\n'
' value1: ${CONFIG_TEST_ENV}\n'
' value2: ${CONFIG_TEST_PATH}/path\n'
)
def tearDown(self):
del self.config
os.environ.pop('CONFIG_TEST_ENV', None)
os.environ.pop('CONFIG_TEST_PATH', None)
os.unlink(self.config_file)
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_env_variable_interpolation(self):
self.config.from_yaml(self.config_file)
self.assertEqual(
self.config(),
{
'section1': {
'value1': 'test-value',
'value2': 'test-path/path',
},
},
)
self.assertEqual(
self.config.section1(),
{
'value1': 'test-value',
'value2': 'test-path/path',
},
)
self.assertEqual(self.config.section1.value1(), 'test-value')
self.assertEqual(self.config.section1.value2(), 'test-path/path')
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_missing_envs(self):
del os.environ['CONFIG_TEST_ENV']
del os.environ['CONFIG_TEST_PATH']
self.config.from_yaml(self.config_file)
self.assertEqual(
self.config(),
{
'section1': {
'value1': '${CONFIG_TEST_ENV}',
'value2': '${CONFIG_TEST_PATH}/path',
},
},
)
self.assertEqual(
self.config.section1(),
{
'value1': '${CONFIG_TEST_ENV}',
'value2': '${CONFIG_TEST_PATH}/path',
},
)
self.assertEqual(self.config.section1.value1(), '${CONFIG_TEST_ENV}')
self.assertEqual(self.config.section1.value2(), '${CONFIG_TEST_PATH}/path')
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_default_values(self):
os.environ['DEFINED'] = 'defined'
self.addCleanup(os.environ.pop, 'DEFINED')
with open(self.config_file, 'w') as config_file:
config_file.write(
'section:\n'
' defined_with_default: ${DEFINED:default}\n'
' undefined_with_default: ${UNDEFINED:default}\n'
' complex: ${DEFINED}/path/${DEFINED:default}/${UNDEFINED}/${UNDEFINED:default}\n'
)
self.config.from_yaml(self.config_file)
self.assertEqual(
self.config.section(),
{
'defined_with_default': 'defined',
'undefined_with_default': 'default',
'complex': 'defined/path/defined/${UNDEFINED}/default',
},
)
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_option_env_variable_interpolation(self):
self.config.option.from_yaml(self.config_file)
self.assertEqual(
self.config.option(),
{
'section1': {
'value1': 'test-value',
'value2': 'test-path/path',
},
},
)
self.assertEqual(
self.config.option.section1(),
{
'value1': 'test-value',
'value2': 'test-path/path',
},
)
self.assertEqual(self.config.option.section1.value1(), 'test-value')
self.assertEqual(self.config.option.section1.value2(), 'test-path/path')
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_env_variable_interpolation_custom_loader(self):
self.config.from_yaml(self.config_file, loader=yaml.UnsafeLoader)
self.assertEqual(
self.config.section1(),
{
'value1': 'test-value',
'value2': 'test-path/path',
},
)
self.assertEqual(self.config.section1.value1(), 'test-value')
self.assertEqual(self.config.section1.value2(), 'test-path/path')
@unittest.skipIf(sys.version_info[:2] == (3, 4), 'PyYAML does not support Python 3.4')
def test_option_env_variable_interpolation_custom_loader(self):
self.config.option.from_yaml(self.config_file, loader=yaml.UnsafeLoader)
self.assertEqual(
self.config.option.section1(),
{
'value1': 'test-value',
'value2': 'test-path/path',
},
)
self.assertEqual(self.config.option.section1.value1(), 'test-value')
self.assertEqual(self.config.option.section1.value2(), 'test-path/path')
class ConfigFromPydanticTests(unittest.TestCase):
def setUp(self):
self.config = providers.Configuration(name='config')
class Section11(pydantic.BaseModel):
value1 = 1
class Section12(pydantic.BaseModel):
value2 = 2
class Settings1(pydantic.BaseSettings):
section1 = Section11()
section2 = Section12()
self.Settings1 = Settings1
class Section21(pydantic.BaseModel):
value1 = 11
value11 = 11
class Section3(pydantic.BaseModel):
value3 = 3
class Settings2(pydantic.BaseSettings):
section1 = Section21()
section3 = Section3()
self.Settings2 = Settings2
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test(self):
self.config.from_pydantic(self.Settings1())
self.assertEqual(self.config(), {'section1': {'value1': 1}, 'section2': {'value2': 2}})
self.assertEqual(self.config.section1(), {'value1': 1})
self.assertEqual(self.config.section1.value1(), 1)
self.assertEqual(self.config.section2(), {'value2': 2})
self.assertEqual(self.config.section2.value2(), 2)
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_kwarg(self):
self.config.from_pydantic(self.Settings1(), exclude={'section2'})
self.assertEqual(self.config(), {'section1': {'value1': 1}})
self.assertEqual(self.config.section1(), {'value1': 1})
self.assertEqual(self.config.section1.value1(), 1)
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_merge(self):
self.config.from_pydantic(self.Settings1())
self.config.from_pydantic(self.Settings2())
self.assertEqual(
self.config(),
{
'section1': {
'value1': 11,
'value11': 11,
},
'section2': {
'value2': 2,
},
'section3': {
'value3': 3,
},
},
)
self.assertEqual(self.config.section1(), {'value1': 11, 'value11': 11})
self.assertEqual(self.config.section1.value1(), 11)
self.assertEqual(self.config.section1.value11(), 11)
self.assertEqual(self.config.section2(), {'value2': 2})
self.assertEqual(self.config.section2.value2(), 2)
self.assertEqual(self.config.section3(), {'value3': 3})
self.assertEqual(self.config.section3.value3(), 3)
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_empty_settings(self):
self.config.from_pydantic(pydantic.BaseSettings())
self.assertEqual(self.config(), {})
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_empty_settings_strict_mode(self):
self.config = providers.Configuration(strict=True)
with self.assertRaises(ValueError):
self.config.from_pydantic(pydantic.BaseSettings())
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_option_empty_settings(self):
self.config.option.from_pydantic(pydantic.BaseSettings())
self.assertEqual(self.config.option(), {})
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_option_empty_settings_strict_mode(self):
self.config = providers.Configuration(strict=True)
with self.assertRaises(ValueError):
self.config.option.from_pydantic(pydantic.BaseSettings())
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_required_empty_settings(self):
with self.assertRaises(ValueError):
self.config.from_pydantic(pydantic.BaseSettings(), required=True)
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_required_option_empty_settings(self):
with self.assertRaises(ValueError):
self.config.option.from_pydantic(pydantic.BaseSettings(), required=True)
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_not_required_empty_settings_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.from_pydantic(pydantic.BaseSettings(), required=False)
self.assertEqual(self.config(), {})
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_not_required_option_empty_settings_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.option.from_pydantic(pydantic.BaseSettings(), required=False)
self.assertEqual(self.config.option(), {})
self.assertEqual(self.config(), {'option': {}})
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_not_instance_of_settings(self):
with self.assertRaises(errors.Error) as error:
self.config.from_pydantic({})
self.assertEqual(
error.exception.args[0],
'Unable to recognize settings instance, expect "pydantic.BaseSettings", '
'got {0} instead'.format({})
)
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_option_not_instance_of_settings(self):
with self.assertRaises(errors.Error) as error:
self.config.option.from_pydantic({})
self.assertEqual(
error.exception.args[0],
'Unable to recognize settings instance, expect "pydantic.BaseSettings", '
'got {0} instead'.format({})
)
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_subclass_instead_of_instance(self):
with self.assertRaises(errors.Error) as error:
self.config.from_pydantic(self.Settings1)
self.assertEqual(
error.exception.args[0],
'Got settings class, but expect instance: '
'instead "Settings1" use "Settings1()"'
)
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_option_subclass_instead_of_instance(self):
with self.assertRaises(errors.Error) as error:
self.config.option.from_pydantic(self.Settings1)
self.assertEqual(
error.exception.args[0],
'Got settings class, but expect instance: '
'instead "Settings1" use "Settings1()"'
)
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_no_pydantic_installed(self):
@contextlib.contextmanager
def no_pydantic_module():
pydantic = providers.pydantic
providers.pydantic = None
yield
providers.pydantic = pydantic
with no_pydantic_module():
with self.assertRaises(errors.Error) as error:
self.config.from_pydantic(self.Settings1())
self.assertEqual(
error.exception.args[0],
'Unable to load pydantic configuration - pydantic is not installed. '
'Install pydantic or install Dependency Injector with pydantic extras: '
'"pip install dependency-injector[pydantic]"',
)
@unittest.skipIf(sys.version_info[:2] < (3, 6), 'Pydantic supports Python 3.6+')
def test_option_no_pydantic_installed(self):
@contextlib.contextmanager
def no_pydantic_module():
pydantic = providers.pydantic
providers.pydantic = None
yield
providers.pydantic = pydantic
with no_pydantic_module():
with self.assertRaises(errors.Error) as error:
self.config.option.from_pydantic(self.Settings1())
self.assertEqual(
error.exception.args[0],
'Unable to load pydantic configuration - pydantic is not installed. '
'Install pydantic or install Dependency Injector with pydantic extras: '
'"pip install dependency-injector[pydantic]"',
)
class ConfigFromDict(unittest.TestCase):
def setUp(self):
self.config = providers.Configuration(name='config')
self.config_options_1 = {
'section1': {
'value1': '1',
},
'section2': {
'value2': '2',
},
}
self.config_options_2 = {
'section1': {
'value1': '11',
'value11': '11',
},
'section3': {
'value3': '3',
},
}
def test(self):
self.config.from_dict(self.config_options_1)
self.assertEqual(self.config(), {'section1': {'value1': '1'}, 'section2': {'value2': '2'}})
self.assertEqual(self.config.section1(), {'value1': '1'})
self.assertEqual(self.config.section1.value1(), '1')
self.assertEqual(self.config.section2(), {'value2': '2'})
self.assertEqual(self.config.section2.value2(), '2')
def test_merge(self):
self.config.from_dict(self.config_options_1)
self.config.from_dict(self.config_options_2)
self.assertEqual(
self.config(),
{
'section1': {
'value1': '11',
'value11': '11',
},
'section2': {
'value2': '2',
},
'section3': {
'value3': '3',
},
},
)
self.assertEqual(self.config.section1(), {'value1': '11', 'value11': '11'})
self.assertEqual(self.config.section1.value1(), '11')
self.assertEqual(self.config.section1.value11(), '11')
self.assertEqual(self.config.section2(), {'value2': '2'})
self.assertEqual(self.config.section2.value2(), '2')
self.assertEqual(self.config.section3(), {'value3': '3'})
self.assertEqual(self.config.section3.value3(), '3')
def test_empty_dict(self):
self.config.from_dict({})
self.assertEqual(self.config(), {})
def test_option_empty_dict(self):
self.config.option.from_dict({})
self.assertEqual(self.config.option(), {})
def test_empty_dict_in_strict_mode(self):
self.config = providers.Configuration(strict=True)
with self.assertRaises(ValueError):
self.config.from_dict({})
def test_option_empty_dict_in_strict_mode(self):
self.config = providers.Configuration(strict=True)
with self.assertRaises(ValueError):
self.config.option.from_dict({})
def test_required_empty_dict(self):
with self.assertRaises(ValueError):
self.config.from_dict({}, required=True)
def test_required_option_empty_dict(self):
with self.assertRaises(ValueError):
self.config.option.from_dict({}, required=True)
def test_not_required_empty_dict_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.from_dict({}, required=False)
self.assertEqual(self.config(), {})
def test_not_required_option_empty_dict_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.option.from_dict({}, required=False)
self.assertEqual(self.config.option(), {})
self.assertEqual(self.config(), {'option': {}})
class ConfigFromEnvTests(unittest.TestCase):
def setUp(self):
self.config = providers.Configuration(name='config')
os.environ['CONFIG_TEST_ENV'] = 'test-value'
def tearDown(self):
del self.config
del os.environ['CONFIG_TEST_ENV']
def test(self):
self.config.from_env('CONFIG_TEST_ENV')
self.assertEqual(self.config(), 'test-value')
def test_with_children(self):
self.config.section1.value1.from_env('CONFIG_TEST_ENV')
self.assertEqual(self.config(), {'section1': {'value1': 'test-value'}})
self.assertEqual(self.config.section1(), {'value1': 'test-value'})
self.assertEqual(self.config.section1.value1(), 'test-value')
def test_default(self):
self.config.from_env('UNDEFINED_ENV', 'default-value')
self.assertEqual(self.config(), 'default-value')
def test_default_none(self):
self.config.from_env('UNDEFINED_ENV')
self.assertIsNone(self.config())
def test_option_default_none(self):
self.config.option.from_env('UNDEFINED_ENV')
self.assertIsNone(self.config.option())
def test_undefined_in_strict_mode(self):
self.config = providers.Configuration(strict=True)
with self.assertRaises(ValueError):
self.config.from_env('UNDEFINED_ENV')
def test_option_undefined_in_strict_mode(self):
self.config = providers.Configuration(strict=True)
with self.assertRaises(ValueError):
self.config.option.from_env('UNDEFINED_ENV')
def test_undefined_in_strict_mode_with_default(self):
self.config = providers.Configuration(strict=True)
self.config.from_env('UNDEFINED_ENV', 'default-value')
self.assertEqual(self.config(), 'default-value')
def test_option_undefined_in_strict_mode_with_default(self):
self.config = providers.Configuration(strict=True)
self.config.option.from_env('UNDEFINED_ENV', 'default-value')
self.assertEqual(self.config.option(), 'default-value')
def test_required_undefined(self):
with self.assertRaises(ValueError):
self.config.from_env('UNDEFINED_ENV', required=True)
def test_required_undefined_with_default(self):
self.config.from_env('UNDEFINED_ENV', default='default-value', required=True)
self.assertEqual(self.config(), 'default-value')
def test_option_required_undefined(self):
with self.assertRaises(ValueError):
self.config.option.from_env('UNDEFINED_ENV', required=True)
def test_option_required_undefined_with_default(self):
self.config.option.from_env('UNDEFINED_ENV', default='default-value', required=True)
self.assertEqual(self.config.option(), 'default-value')
def test_not_required_undefined_in_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.from_env('UNDEFINED_ENV', required=False)
self.assertIsNone(self.config())
def test_option_not_required_undefined_in_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.option.from_env('UNDEFINED_ENV', required=False)
self.assertIsNone(self.config.option())
def test_not_required_undefined_with_default_in_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.from_env('UNDEFINED_ENV', default='default-value', required=False)
self.assertEqual(self.config(), 'default-value')
def test_option_not_required_undefined_with_default_in_strict_mode(self):
self.config = providers.Configuration(strict=True)
self.config.option.from_env('UNDEFINED_ENV', default='default-value', required=False)
self.assertEqual(self.config.option(), 'default-value')
class ConfigFromValueTests(unittest.TestCase):
def setUp(self):
self.config = providers.Configuration(name='config')
def test_from_value(self):
test_value = 123321
self.config.from_value(test_value)
self.assertEqual(self.config(), test_value)
def test_option_from_value(self):
test_value_1 = 123
test_value_2 = 321
self.config.option1.from_value(test_value_1)
self.config.option2.from_value(test_value_2)
self.assertEqual(self.config(), {'option1': test_value_1, 'option2': test_value_2})
self.assertEqual(self.config.option1(), test_value_1)
self.assertEqual(self.config.option2(), test_value_2)