# -*- coding: utf-8; -*- import configparser import os from unittest import TestCase from unittest.mock import patch, MagicMock import pytest from wuttjamaican import conf as mod # TODO: get rid of this eventually from wuttjamaican import conf from wuttjamaican.exc import ConfigurationError from wuttjamaican.app import AppHandler from wuttjamaican.testing import FileTestCase class TestWuttaConfig(FileTestCase): def test_contstructor_basic(self): config = conf.WuttaConfig() self.assertEqual(config.appname, 'wutta') self.assertEqual(config.files_read, []) def test_constructor_valid_files(self): myfile = self.write_file('my.conf', '') config = conf.WuttaConfig(files=[myfile]) self.assertEqual(len(config.files_read), 1) self.assertEqual(config.files_read[0], myfile) def test_constructor_missing_files(self): invalid = os.path.join(self.tempdir, 'invalid.conf') self.assertRaises(FileNotFoundError, conf.WuttaConfig, files=[invalid]) def test_constructor_required_files_are_present(self): first = self.write_file('first.conf', """\ [foo] bar = 1 baz = A """) second = self.write_file('second.conf', """\ [wutta.config] require = %(here)s/first.conf [foo] baz = B """) config = conf.WuttaConfig(files=[second]) self.assertEqual(len(config.files_read), 2) # nb. files_read listing is in order of "priority" which is # same the as order in which files were initially read self.assertEqual(config.files_read[0], second) self.assertEqual(config.files_read[1], first) self.assertEqual(config.get('foo.bar'), '1') self.assertEqual(config.get('foo.baz'), 'B') def test_constructor_required_files_are_missing(self): second = self.write_file('second.conf', """\ [wutta.config] require = %(here)s/first.conf [foo] baz = B """) self.assertRaises(FileNotFoundError, conf.WuttaConfig, files=[second]) def test_constructor_included_files_are_present(self): first = self.write_file('first.conf', """\ [foo] bar = 1 baz = A """) second = self.write_file('second.conf', """\ [wutta.config] include = %(here)s/first.conf [foo] baz = B """) config = conf.WuttaConfig(files=[second]) self.assertEqual(len(config.files_read), 2) # nb. files_read listing is in order of "priority" which is # same the as order in which files were initially read self.assertEqual(config.files_read[0], second) self.assertEqual(config.files_read[1], first) self.assertEqual(config.get('foo.bar'), '1') self.assertEqual(config.get('foo.baz'), 'B') def test_constructor_included_files_are_missing(self): second = self.write_file('second.conf', """\ [wutta.config] include = %(here)s/first.conf [foo] baz = B """) config = conf.WuttaConfig(files=[second]) self.assertEqual(len(config.files_read), 1) self.assertEqual(config.files_read[0], second) self.assertIsNone(config.get('foo.bar')) self.assertEqual(config.get('foo.baz'), 'B') def test_prioritized_files(self): first = self.write_file('first.conf', """\ [foo] bar = 1 """) second = self.write_file('second.conf', """\ [wutta.config] require = %(here)s/first.conf """) config = conf.WuttaConfig(files=[second]) files = config.get_prioritized_files() self.assertEqual(len(files), 2) self.assertEqual(files[0], second) self.assertEqual(files[1], first) def test_constructor_defaults(self): config = conf.WuttaConfig() self.assertEqual(config.defaults, {}) self.assertIsNone(config.get('foo')) config = conf.WuttaConfig(defaults={'foo': 'bar'}) self.assertEqual(config.defaults, {'foo': 'bar'}) self.assertEqual(config.get('foo'), 'bar') def test_constructor_db_flags(self): try: # nb. we don't need this import but the test will not # behave correctly unless the lib is installed import sqlalchemy except ImportError: pytest.skip("test is not relevant without sqlalchemy") myfile = self.write_file('my.conf', """\ [wutta.config] usedb = true preferdb = true """) # flags are off by default config = conf.WuttaConfig() self.assertFalse(config.usedb) self.assertFalse(config.preferdb) # but may override via constructor config = conf.WuttaConfig(usedb=True, preferdb=True) self.assertTrue(config.usedb) self.assertTrue(config.preferdb) # and also may override via config file config = conf.WuttaConfig(files=[myfile]) self.assertTrue(config.usedb) self.assertTrue(config.preferdb) def test_constructor_db_not_supported(self): try: # nb. we don't need this import but the test will not # behave correctly unless the lib is installed import sqlalchemy except ImportError: pytest.skip("test is not relevant without sqlalchemy") # flags are off by default config = conf.WuttaConfig() self.assertFalse(config.usedb) self.assertFalse(config.preferdb) # but caller may enable the flags (if sqlalchemy available) config = conf.WuttaConfig(usedb=True, preferdb=True) self.assertTrue(config.usedb) self.assertTrue(config.preferdb) # but db flags are force-disabled if sqlalchemy not available, # regardless of flag values caller provides... orig_import = __import__ def mock_import(name, *args, **kwargs): if name == 'wuttjamaican.db': raise ImportError return orig_import(name, *args, **kwargs) with patch('builtins.__import__', side_effect=mock_import): config = conf.WuttaConfig(usedb=True, preferdb=True) self.assertFalse(config.usedb) self.assertFalse(config.preferdb) def test_constructor_may_configure_logging(self): myfile = self.write_file('my.conf', """\ [wutta.config] configure_logging = true """) with patch.object(conf.WuttaConfig, '_configure_logging') as method: # no logging config by default config = conf.WuttaConfig() method.assert_not_called() # but may override via constructor method.reset_mock() config = conf.WuttaConfig(configure_logging=True) method.assert_called_once() # and also may override via config file method.reset_mock() config = conf.WuttaConfig(files=[myfile]) method.assert_called_once() def test_constructor_configures_logging(self): myfile = self.write_file('my.conf', """\ [wutta] timezone.default = America/Chicago [wutta.config] configure_logging = true """) with patch('wuttjamaican.conf.logging') as logging: # basic constructor attempts logging config config = conf.WuttaConfig(configure_logging=True) logging.config.fileConfig.assert_called_once() # if logging config fails, error is *not* raised logging.config.fileConfig.reset_mock() logging.config.fileConfig.side_effect = configparser.NoSectionError('logging') config = conf.WuttaConfig(configure_logging=True) logging.config.fileConfig.assert_called_once() # and it works if we specify config file logging.config.fileConfig.reset_mock() config = conf.WuttaConfig(files=[myfile]) logging.config.fileConfig.assert_called_once() def test_config_has_no_app_after_init(self): # initial config should *not* have an app yet, otherwise # extensions cannot specify a default app handler config = conf.WuttaConfig() self.assertFalse(hasattr(config, '_app')) # but after that we can get an app okay app = config.get_app() self.assertIs(app, config._app) def test_setdefault(self): config = conf.WuttaConfig() # value is empty by default self.assertIsNone(config.get('foo')) # but we can change that by setting default config.setdefault('foo', 'bar') self.assertEqual(config.get('foo'), 'bar') # also, value is returned when we set default self.assertIsNone(config.get('baz')) self.assertEqual(config.setdefault('baz', 'blarg'), 'blarg') def test_get_require_with_default(self): config = conf.WuttaConfig() self.assertRaises(ValueError, config.get, 'foo', require=True, default='bar') def test_get_require_missing(self): config = conf.WuttaConfig() self.assertRaises(ConfigurationError, config.get, 'foo', require=True) def test_get_with_default(self): config = conf.WuttaConfig() # nb. returns None if no default specified self.assertIsNone(config.get('foo')) self.assertEqual(config.get('foo', default='bar'), 'bar') def test_get_from_db(self): try: import sqlalchemy as sa from wuttjamaican.db import Session except ImportError: pytest.skip("test is not relevant without sqlalchemy") # minimal config, but at least it needs db cxn info config = conf.WuttaConfig(defaults={'wutta.db.default.url': 'sqlite://'}) session = Session() # setup table for testing session.execute(sa.text(""" create table setting ( name varchar(255) primary key, value text ); """)) session.commit() # setting not yet defined self.assertIsNone(config.get_from_db('foo')) # insert setting value to db session.execute(sa.text("insert into setting values ('foo', 'bar')")) session.commit() # now setting returns a value self.assertEqual(config.get_from_db('foo'), 'bar') # also works if we provide the session self.assertEqual(config.get_from_db('foo', session=session), 'bar') session.close() def test_get_default(self): config = conf.WuttaConfig() self.assertIsNone(config.get('foo')) self.assertEqual(config.get('foo', default='bar'), 'bar') def test_get_require(self): config = conf.WuttaConfig() self.assertIsNone(config.get('foo')) self.assertRaises(ConfigurationError, config.get, 'foo', require=True) def test_get_require_message(self): config = conf.WuttaConfig() self.assertIsNone(config.get('foo')) try: config.get('foo', require=True, message="makin stuff up") except ConfigurationError as error: self.assertIn("makin stuff up", str(error)) def test_get_preferdb(self): try: import sqlalchemy as sa from wuttjamaican.db import Session except ImportError: pytest.skip("test is not relevant without sqlalchemy") # start out with a default value config = conf.WuttaConfig(defaults={'wutta.db.default.url': 'sqlite://', 'foo': 'bar'}) self.assertEqual(config.get('foo'), 'bar') session = Session() # setup table for testing session.execute(sa.text(""" create table setting ( name varchar(255) primary key, value text ); """)) session.execute(sa.text("insert into setting values ('foo', 'baz')")) session.commit() # we did not specify usedb=True, so original default is still returned self.assertFalse(config.usedb) self.assertEqual(config.get('foo'), 'bar') # usedb but no preferdb means original default is still returned self.assertEqual(config.get('foo', usedb=True), 'bar') # but preferdb should mean newer db value is returned self.assertEqual(config.get('foo', usedb=True, preferdb=True), 'baz') # try a different key to ensure db fallback works if no default present session.execute(sa.text("insert into setting values ('blarg', 'blitz')")) session.commit() self.assertIsNone(config.get('blarg')) self.assertEqual(config.get('blarg', usedb=True), 'blitz') session.close() def test_get_ambiguous(self): config = conf.WuttaConfig() # value is returned if key is not ambiguous config.setdefault('foo', 'bar') self.assertEqual(config.get('foo'), 'bar') # but None is returned if key is ambiguous config.setdefault('foo.bar', 'baz') self.assertIsNone(config.get('foo')) def test_require(self): config = conf.WuttaConfig() self.assertRaises(ConfigurationError, config.require, 'foo') def test_get_bool(self): config = conf.WuttaConfig() self.assertFalse(config.get_bool('foo.bar')) config.setdefault('foo.bar', 'true') self.assertTrue(config.get_bool('foo.bar')) def test_get_int(self): config = conf.WuttaConfig() self.assertIsNone(config.get_int('foo.bar')) config.setdefault('foo.bar', '42') self.assertEqual(config.get_int('foo.bar'), 42) def test_get_list(self): config = conf.WuttaConfig() self.assertIsNone(config.get_list('foo.bar')) config.setdefault('foo.bar', 'hello world') self.assertEqual(config.get_list('foo.bar'), ['hello', 'world']) def test_get_app(self): # default handler config = conf.WuttaConfig() self.assertEqual(config.default_app_handler_spec, 'wuttjamaican.app:AppHandler') app = config.get_app() self.assertIsInstance(app, AppHandler) # nb. make extra sure we didn't get a subclass self.assertIs(type(app), AppHandler) # custom default handler config = conf.WuttaConfig() config.default_app_handler_spec = 'tests.test_conf:CustomAppHandler' app = config.get_app() self.assertIsInstance(app, CustomAppHandler) def test_get_engine_maker(self): try: from wuttjamaican.db.conf import make_engine_from_config except ImportError: pytest.skip("test is not relevant without sqlalchemy") # default func config = conf.WuttaConfig() self.assertEqual(config.default_engine_maker_spec, 'wuttjamaican.db.conf:make_engine_from_config') make_engine = config.get_engine_maker() self.assertIs(make_engine, make_engine_from_config) # custom default func config = conf.WuttaConfig() config.default_engine_maker_spec = 'tests.test_conf:custom_make_engine_from_config' make_engine = config.get_engine_maker() self.assertIs(make_engine, custom_make_engine_from_config) def test_production(self): config = conf.WuttaConfig() # false if not defined self.assertFalse(config.production()) # but config may specify config.setdefault('wutta.production', 'true') self.assertTrue(config.production()) class CustomAppHandler(AppHandler): pass def custom_make_engine_from_config(): pass class TestWuttaConfigExtension(TestCase): def test_basic(self): config = conf.WuttaConfig() ext = conf.WuttaConfigExtension() self.assertIsNone(ext.key) self.assertEqual(repr(ext), 'WuttaConfigExtension(key=None)') class TestGenericDefaultFiles(TestCase): def test_linux(self): files = conf.generic_default_files('wuttatest') self.assertIsInstance(files, list) self.assertTrue(len(files) > 1) self.assertIn('/etc/wuttatest.conf', files) def test_win32(self): win32com = MagicMock() win32com.shell.SHGetSpecialFolderPath.return_value = r'C:' + os.sep with patch.dict('sys.modules', **{'win32com.shell': win32com}): with patch('wuttjamaican.conf.sys', platform='win32'): files = conf.generic_default_files('wuttatest') self.assertIsInstance(files, list) self.assertTrue(len(files) > 1) self.assertIn(os.path.join('C:', 'wuttatest.conf'), files) def test_win32_broken(self): orig_import = __import__ def mock_import(name, *args, **kwargs): if name == 'win32com.shell': raise ImportError return orig_import(name, *args, **kwargs) with patch('builtins.__import__', side_effect=mock_import): with patch('wuttjamaican.conf.sys', platform='win32'): files = conf.generic_default_files('wuttatest') self.assertIsInstance(files, list) self.assertEqual(len(files), 0) class TestGetConfigPaths(FileTestCase): def test_winsvc(self): myconf = self.write_file('my.conf', """ [wutta.config] winsvc.RattailFileMonitor = /path/to/other/file """) files = conf.get_config_paths(files=[myconf], winsvc='RattailFileMonitor') self.assertEqual(files, ['/path/to/other/file']) def test_nonexistent_default_files(self): files = conf.get_config_paths(files=None, env_files_name='IGNORE_THIS', default_files=['/this/does/not/exist']) self.assertEqual(files, []) class TestMakeConfig(FileTestCase): # nb. we use appname='wuttatest' in this suite to avoid any # "valid" default config files, env vars etc. which may be present # on the dev machine def test_generic_default_files(self): generic = self.write_file('generic.conf', '') with patch('wuttjamaican.conf.generic_default_files') as generic_default_files: with patch('wuttjamaican.conf.WuttaConfig') as WuttaConfig: # generic files are used if nothing is specified generic_default_files.return_value = [generic] config = conf.make_config(appname='wuttatest') generic_default_files.assert_called_once_with('wuttatest') WuttaConfig.assert_called_once_with([generic], appname='wuttatest', usedb=None, preferdb=None) # make sure empty defaults works too generic_default_files.reset_mock() generic_default_files.return_value = [] WuttaConfig.reset_mock() config = conf.make_config(appname='wuttatest') generic_default_files.assert_called_once_with('wuttatest') WuttaConfig.assert_called_once_with([], appname='wuttatest', usedb=None, preferdb=None) def test_specify_default_files(self): generic = self.write_file('generic.conf', '') myfile = self.write_file('my.conf', '') with patch('wuttjamaican.conf.generic_default_files') as generic_default_files: with patch('wuttjamaican.conf.WuttaConfig') as WuttaConfig: # generic defaults are used if nothing specified generic_default_files.return_value = [generic] config = conf.make_config(appname='wuttatest') generic_default_files.assert_called_once_with('wuttatest') WuttaConfig.assert_called_once_with([generic], appname='wuttatest', usedb=None, preferdb=None) # can specify single default file generic_default_files.reset_mock() WuttaConfig.reset_mock() config = conf.make_config(appname='wuttatest', default_files=myfile) generic_default_files.assert_not_called() WuttaConfig.assert_called_once_with([myfile], appname='wuttatest', usedb=None, preferdb=None) # can specify default files as list generic_default_files.reset_mock() WuttaConfig.reset_mock() config = conf.make_config(appname='wuttatest', default_files=[myfile]) generic_default_files.assert_not_called() WuttaConfig.assert_called_once_with([myfile], appname='wuttatest', usedb=None, preferdb=None) # can specify default files as callable generic_default_files.reset_mock() WuttaConfig.reset_mock() config = conf.make_config(appname='wuttatest', default_files=lambda appname: [myfile]) generic_default_files.assert_not_called() WuttaConfig.assert_called_once_with([myfile], appname='wuttatest', usedb=None, preferdb=None) def test_specify_plus_files(self): generic = self.write_file('generic.conf', '') myfile = self.write_file('my.conf', '') with patch('wuttjamaican.conf.generic_default_files') as generic_default_files: with patch('wuttjamaican.conf.WuttaConfig') as WuttaConfig: generic_default_files.return_value = [generic] # no plus files by default config = conf.make_config(appname='wuttatest') generic_default_files.assert_called_once_with('wuttatest') WuttaConfig.assert_called_once_with([generic], appname='wuttatest', usedb=None, preferdb=None) # can specify single plus file generic_default_files.reset_mock() WuttaConfig.reset_mock() config = conf.make_config(appname='wuttatest', plus_files=myfile) generic_default_files.assert_called_once_with('wuttatest') WuttaConfig.assert_called_once_with([generic, myfile], appname='wuttatest', usedb=None, preferdb=None) # can specify plus files as list generic_default_files.reset_mock() WuttaConfig.reset_mock() config = conf.make_config(appname='wuttatest', plus_files=[myfile]) generic_default_files.assert_called_once_with('wuttatest') WuttaConfig.assert_called_once_with([generic, myfile], appname='wuttatest', usedb=None, preferdb=None) # can specify plus files via env generic_default_files.reset_mock() WuttaConfig.reset_mock() config = conf.make_config(appname='wuttatest', env={'WUTTATEST_CONFIG_PLUS_FILES': myfile}) generic_default_files.assert_called_once_with('wuttatest') WuttaConfig.assert_called_once_with([generic, myfile], appname='wuttatest', usedb=None, preferdb=None) def test_specify_primary_files(self): generic = self.write_file('generic.conf', '') myfile = self.write_file('my.conf', '') with patch('wuttjamaican.conf.generic_default_files') as generic_default_files: with patch('wuttjamaican.conf.WuttaConfig') as WuttaConfig: generic_default_files.return_value = [generic] # generic files by default config = conf.make_config(appname='wuttatest') generic_default_files.assert_called_once_with('wuttatest') WuttaConfig.assert_called_once_with([generic], appname='wuttatest', usedb=None, preferdb=None) # can specify single primary file (nb. no default files) generic_default_files.reset_mock() WuttaConfig.reset_mock() config = conf.make_config(myfile, appname='wuttatest') generic_default_files.assert_not_called() WuttaConfig.assert_called_once_with([myfile], appname='wuttatest', usedb=None, preferdb=None) # can specify primary files as list generic_default_files.reset_mock() WuttaConfig.reset_mock() config = conf.make_config([myfile], appname='wuttatest') generic_default_files.assert_not_called() WuttaConfig.assert_called_once_with([myfile], appname='wuttatest', usedb=None, preferdb=None) # can specify primary files via env generic_default_files.reset_mock() WuttaConfig.reset_mock() config = conf.make_config(appname='wuttatest', env={'WUTTATEST_CONFIG_FILES': myfile}) generic_default_files.assert_not_called() WuttaConfig.assert_called_once_with([myfile], appname='wuttatest', usedb=None, preferdb=None) def test_extensions(self): generic = self.write_file('generic.conf', '') myfile = self.write_file('my.conf', '') with patch.object(mod, 'WuttaConfig') as WuttaConfig: with patch.object(mod, 'load_entry_points') as load_entry_points: # no entry points loaded if extend=False config = mod.make_config(appname='wuttatest', extend=False) WuttaConfig.assert_called_once_with([], appname='wuttatest', usedb=None, preferdb=None) load_entry_points.assert_not_called() # confirm entry points for default appname load_entry_points.reset_mock() WuttaConfig.reset_mock() config = mod.make_config([], appname='wutta') WuttaConfig.assert_called_once_with([], appname='wutta', usedb=None, preferdb=None) load_entry_points.assert_called_once_with('wutta.config.extensions') # confirm entry points for custom appname load_entry_points.reset_mock() WuttaConfig.reset_mock() config = mod.make_config(appname='wuttatest') WuttaConfig.assert_called_once_with([], appname='wuttatest', usedb=None, preferdb=None) load_entry_points.assert_called_once_with('wuttatest.config.extensions') # confirm extensions are invoked load_entry_points.reset_mock() foo_obj = MagicMock() foo_cls = MagicMock(return_value=foo_obj) load_entry_points.return_value = {'foo': foo_cls} WuttaConfig.reset_mock() testconfig = MagicMock() WuttaConfig.return_value = testconfig config = mod.make_config(appname='wuttatest') WuttaConfig.assert_called_once_with([], appname='wuttatest', usedb=None, preferdb=None) load_entry_points.assert_called_once_with('wuttatest.config.extensions') foo_cls.assert_called_once_with() foo_obj.configure.assert_called_once_with(testconfig) foo_obj.startup.assert_called_once_with(testconfig)