626 lines
24 KiB
Python
626 lines
24 KiB
Python
# -*- coding: utf-8; -*-
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import configparser
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import os
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import shutil
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import tempfile
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from unittest import TestCase
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from unittest.mock import patch, MagicMock
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import sqlalchemy as sa
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from wuttjamaican import conf
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from wuttjamaican.exc import ConfigurationError
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from wuttjamaican.db import Session
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class TestWuttaConfig(TestCase):
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def setUp(self):
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self.tempdir = tempfile.mkdtemp()
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def tearDown(self):
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shutil.rmtree(self.tempdir)
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def write_file(self, filename, content):
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path = os.path.join(self.tempdir, filename)
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with open(path, 'wt') as f:
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f.write(content)
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return path
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def test_contstructor_basic(self):
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config = conf.WuttaConfig()
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self.assertEqual(config.appname, 'wutta')
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self.assertEqual(config.files_read, [])
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def test_constructor_valid_files(self):
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myfile = self.write_file('my.conf', '')
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config = conf.WuttaConfig(files=[myfile])
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self.assertEqual(len(config.files_read), 1)
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self.assertEqual(config.files_read[0], myfile)
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def test_constructor_missing_files(self):
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invalid = os.path.join(self.tempdir, 'invalid.conf')
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self.assertRaises(FileNotFoundError, conf.WuttaConfig, files=[invalid])
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def test_constructor_required_files_are_present(self):
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first = self.write_file('first.conf', """\
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[foo]
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bar = 1
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baz = A
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""")
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second = self.write_file('second.conf', """\
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[wutta.config]
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require = %(here)s/first.conf
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[foo]
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baz = B
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""")
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config = conf.WuttaConfig(files=[second])
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self.assertEqual(len(config.files_read), 2)
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# nb. files_read listing is in order of "priority" which is
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# same the as order in which files were initially read
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self.assertEqual(config.files_read[0], second)
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self.assertEqual(config.files_read[1], first)
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self.assertEqual(config.get('foo.bar'), '1')
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self.assertEqual(config.get('foo.baz'), 'B')
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def test_constructor_required_files_are_missing(self):
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second = self.write_file('second.conf', """\
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[wutta.config]
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require = %(here)s/first.conf
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[foo]
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baz = B
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""")
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self.assertRaises(FileNotFoundError, conf.WuttaConfig, files=[second])
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def test_constructor_included_files_are_present(self):
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first = self.write_file('first.conf', """\
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[foo]
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bar = 1
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baz = A
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""")
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second = self.write_file('second.conf', """\
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[wutta.config]
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include = %(here)s/first.conf
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[foo]
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baz = B
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""")
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config = conf.WuttaConfig(files=[second])
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self.assertEqual(len(config.files_read), 2)
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# nb. files_read listing is in order of "priority" which is
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# same the as order in which files were initially read
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self.assertEqual(config.files_read[0], second)
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self.assertEqual(config.files_read[1], first)
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self.assertEqual(config.get('foo.bar'), '1')
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self.assertEqual(config.get('foo.baz'), 'B')
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def test_constructor_included_files_are_missing(self):
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second = self.write_file('second.conf', """\
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[wutta.config]
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include = %(here)s/first.conf
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[foo]
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baz = B
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""")
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config = conf.WuttaConfig(files=[second])
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self.assertEqual(len(config.files_read), 1)
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self.assertEqual(config.files_read[0], second)
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self.assertIsNone(config.get('foo.bar'))
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self.assertEqual(config.get('foo.baz'), 'B')
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def test_prioritized_files(self):
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first = self.write_file('first.conf', """\
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[foo]
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bar = 1
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""")
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second = self.write_file('second.conf', """\
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[wutta.config]
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require = %(here)s/first.conf
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""")
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config = conf.WuttaConfig(files=[second])
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files = config.get_prioritized_files()
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self.assertEqual(len(files), 2)
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self.assertEqual(files[0], second)
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self.assertEqual(files[1], first)
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def test_constructor_defaults(self):
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config = conf.WuttaConfig()
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self.assertEqual(config.defaults, {})
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self.assertIsNone(config.get('foo'))
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config = conf.WuttaConfig(defaults={'foo': 'bar'})
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self.assertEqual(config.defaults, {'foo': 'bar'})
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self.assertEqual(config.get('foo'), 'bar')
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def test_constructor_db_flags(self):
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myfile = self.write_file('my.conf', """\
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[wutta.config]
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usedb = true
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preferdb = true
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""")
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# flags are off by default
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config = conf.WuttaConfig()
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self.assertFalse(config.usedb)
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self.assertFalse(config.preferdb)
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# but may override via constructor
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config = conf.WuttaConfig(usedb=True, preferdb=True)
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self.assertTrue(config.usedb)
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self.assertTrue(config.preferdb)
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# and also may override via config file
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config = conf.WuttaConfig(files=[myfile])
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self.assertTrue(config.usedb)
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self.assertTrue(config.preferdb)
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def test_constructor_db_not_supported(self):
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# flags are off by default
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config = conf.WuttaConfig()
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self.assertFalse(config.usedb)
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self.assertFalse(config.preferdb)
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# but caller may enable the flags (if sqlalchemy available)
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config = conf.WuttaConfig(usedb=True, preferdb=True)
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self.assertTrue(config.usedb)
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self.assertTrue(config.preferdb)
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# but db flags are force-disabled if sqlalchemy not available,
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# regardless of flag values caller provides...
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orig_import = __import__
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def mock_import(name, *args, **kwargs):
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if name == 'db':
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raise ImportError
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return orig_import(name, *args, **kwargs)
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with patch('builtins.__import__', side_effect=mock_import):
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config = conf.WuttaConfig(usedb=True, preferdb=True)
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self.assertFalse(config.usedb)
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self.assertFalse(config.preferdb)
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def test_constructor_may_configure_logging(self):
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myfile = self.write_file('my.conf', """\
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[wutta.config]
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configure_logging = true
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""")
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with patch.object(conf.WuttaConfig, '_configure_logging') as method:
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# no logging config by default
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config = conf.WuttaConfig()
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method.assert_not_called()
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# but may override via constructor
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method.reset_mock()
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config = conf.WuttaConfig(configure_logging=True)
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method.assert_called_once()
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# and also may override via config file
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method.reset_mock()
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config = conf.WuttaConfig(files=[myfile])
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method.assert_called_once()
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def test_constructor_configures_logging(self):
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myfile = self.write_file('my.conf', """\
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[wutta]
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timezone.default = America/Chicago
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[wutta.config]
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configure_logging = true
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""")
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with patch('wuttjamaican.conf.logging') as logging:
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# basic constructor attempts logging config
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config = conf.WuttaConfig(configure_logging=True)
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logging.config.fileConfig.assert_called_once()
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# if logging config fails, error is *not* raised
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logging.config.fileConfig.reset_mock()
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logging.config.fileConfig.side_effect = configparser.NoSectionError('logging')
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config = conf.WuttaConfig(configure_logging=True)
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logging.config.fileConfig.assert_called_once()
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# and it works if we specify config file
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logging.config.fileConfig.reset_mock()
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config = conf.WuttaConfig(files=[myfile])
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logging.config.fileConfig.assert_called_once()
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def test_setdefault(self):
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config = conf.WuttaConfig()
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# value is empty by default
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self.assertIsNone(config.get('foo'))
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# but we can change that by setting default
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config.setdefault('foo', 'bar')
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self.assertEqual(config.get('foo'), 'bar')
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# also, value is returned when we set default
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self.assertIsNone(config.get('baz'))
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self.assertEqual(config.setdefault('baz', 'blarg'), 'blarg')
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def test_get_require_with_default(self):
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config = conf.WuttaConfig()
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self.assertRaises(ValueError, config.get, 'foo', require=True, default='bar')
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def test_get_require_missing(self):
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config = conf.WuttaConfig()
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self.assertRaises(ConfigurationError, config.get, 'foo', require=True)
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def test_get_with_default(self):
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config = conf.WuttaConfig()
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# nb. returns None if no default specified
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self.assertIsNone(config.get('foo'))
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self.assertEqual(config.get('foo', default='bar'), 'bar')
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def test_get_from_db(self):
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# minimal config, but at least it needs db cxn info
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config = conf.WuttaConfig(defaults={'wutta.db.default.url': 'sqlite://'})
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session = Session()
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# setup table for testing
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session.execute(sa.text("""
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create table setting (
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name varchar(255) primary key,
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value text
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);
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"""))
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session.commit()
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# setting not yet defined
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self.assertIsNone(config.get_from_db('foo'))
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# insert setting value to db
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session.execute(sa.text("insert into setting values ('foo', 'bar')"))
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session.commit()
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# now setting returns a value
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self.assertEqual(config.get_from_db('foo'), 'bar')
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# also works if we provide the session
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self.assertEqual(config.get_from_db('foo', session=session), 'bar')
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session.close()
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def test_get_default(self):
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config = conf.WuttaConfig()
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self.assertIsNone(config.get('foo'))
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self.assertEqual(config.get('foo', default='bar'), 'bar')
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def test_get_require(self):
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config = conf.WuttaConfig()
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self.assertIsNone(config.get('foo'))
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self.assertRaises(ConfigurationError, config.get, 'foo', require=True)
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def test_get_require_message(self):
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config = conf.WuttaConfig()
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self.assertIsNone(config.get('foo'))
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try:
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config.get('foo', require=True, message="makin stuff up")
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except ConfigurationError as error:
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self.assertIn("makin stuff up", str(error))
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def test_get_preferdb(self):
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# start out with a default value
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config = conf.WuttaConfig(defaults={'wutta.db.default.url': 'sqlite://',
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'foo': 'bar'})
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self.assertEqual(config.get('foo'), 'bar')
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session = Session()
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# setup table for testing
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session.execute(sa.text("""
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create table setting (
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name varchar(255) primary key,
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value text
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);
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"""))
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session.execute(sa.text("insert into setting values ('foo', 'baz')"))
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session.commit()
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# we did not specify usedb=True, so original default is still returned
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self.assertFalse(config.usedb)
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self.assertEqual(config.get('foo'), 'bar')
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# usedb but no preferdb means original default is still returned
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self.assertEqual(config.get('foo', usedb=True), 'bar')
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# but preferdb should mean newer db value is returned
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self.assertEqual(config.get('foo', usedb=True, preferdb=True), 'baz')
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# try a different key to ensure db fallback works if no default present
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session.execute(sa.text("insert into setting values ('blarg', 'blitz')"))
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session.commit()
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self.assertIsNone(config.get('blarg'))
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self.assertEqual(config.get('blarg', usedb=True), 'blitz')
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session.close()
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def test_get_ambiguous(self):
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config = conf.WuttaConfig()
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# value is returned if key is not ambiguous
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config.setdefault('foo', 'bar')
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self.assertEqual(config.get('foo'), 'bar')
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# but None is returned if key is ambiguous
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config.setdefault('foo.bar', 'baz')
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self.assertIsNone(config.get('foo'))
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def test_require(self):
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config = conf.WuttaConfig()
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self.assertRaises(ConfigurationError, config.require, 'foo')
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def test_get_bool(self):
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config = conf.WuttaConfig()
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self.assertFalse(config.get_bool('foo.bar'))
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config.setdefault('foo.bar', 'true')
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self.assertTrue(config.get_bool('foo.bar'))
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def test_get_int(self):
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config = conf.WuttaConfig()
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self.assertIsNone(config.get_int('foo.bar'))
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config.setdefault('foo.bar', '42')
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self.assertEqual(config.get_int('foo.bar'), 42)
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def test_get_list(self):
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config = conf.WuttaConfig()
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self.assertEqual(config.get_list('foo.bar'), [])
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config.setdefault('foo.bar', 'hello world')
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self.assertEqual(config.get_list('foo.bar'), ['hello', 'world'])
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class TestGenericDefaultFiles(TestCase):
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def test_linux(self):
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files = conf.generic_default_files('wuttatest')
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self.assertIsInstance(files, list)
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self.assertTrue(len(files) > 1)
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self.assertIn('/etc/wuttatest.conf', files)
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def test_win32(self):
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win32com = MagicMock()
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win32com.shell.SHGetSpecialFolderPath.return_value = r'C:' + os.sep
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with patch.dict('sys.modules', **{'win32com.shell': win32com}):
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with patch('wuttjamaican.conf.sys', platform='win32'):
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files = conf.generic_default_files('wuttatest')
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self.assertIsInstance(files, list)
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self.assertTrue(len(files) > 1)
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self.assertIn(os.path.join('C:', 'wuttatest.conf'), files)
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def test_win32_broken(self):
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orig_import = __import__
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def mock_import(name, *args, **kwargs):
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if name == 'win32com.shell':
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raise ImportError
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return orig_import(name, *args, **kwargs)
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with patch('builtins.__import__', side_effect=mock_import):
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with patch('wuttjamaican.conf.sys', platform='win32'):
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files = conf.generic_default_files('wuttatest')
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self.assertIsInstance(files, list)
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self.assertEqual(len(files), 0)
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class TestMakeConfig(TestCase):
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# nb. we use appname='wuttatest' in this suite to avoid any
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# "valid" default config files, env vars etc. which may be present
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# on the dev machine
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def setUp(self):
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self.tempdir = tempfile.mkdtemp()
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def tearDown(self):
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shutil.rmtree(self.tempdir)
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def write_file(self, filename, content):
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path = os.path.join(self.tempdir, filename)
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with open(path, 'wt') as f:
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f.write(content)
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return path
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def test_generic_default_files(self):
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generic = self.write_file('generic.conf', '')
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with patch('wuttjamaican.conf.generic_default_files') as generic_default_files:
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with patch('wuttjamaican.conf.WuttaConfig') as WuttaConfig:
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# generic files are used if nothing is specified
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generic_default_files.return_value = [generic]
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config = conf.make_config(appname='wuttatest')
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generic_default_files.assert_called_once_with('wuttatest')
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WuttaConfig.assert_called_once_with([generic], appname='wuttatest',
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usedb=None, preferdb=None)
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# make sure empty defaults works too
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generic_default_files.reset_mock()
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generic_default_files.return_value = []
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WuttaConfig.reset_mock()
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config = conf.make_config(appname='wuttatest')
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generic_default_files.assert_called_once_with('wuttatest')
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WuttaConfig.assert_called_once_with([], appname='wuttatest',
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usedb=None, preferdb=None)
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def test_specify_default_files(self):
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generic = self.write_file('generic.conf', '')
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myfile = self.write_file('my.conf', '')
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with patch('wuttjamaican.conf.generic_default_files') as generic_default_files:
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with patch('wuttjamaican.conf.WuttaConfig') as WuttaConfig:
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# generic defaults are used if nothing specified
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generic_default_files.return_value = [generic]
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config = conf.make_config(appname='wuttatest')
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generic_default_files.assert_called_once_with('wuttatest')
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WuttaConfig.assert_called_once_with([generic], appname='wuttatest',
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usedb=None, preferdb=None)
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# can specify single default file
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generic_default_files.reset_mock()
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WuttaConfig.reset_mock()
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config = conf.make_config(appname='wuttatest', default_files=myfile)
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generic_default_files.assert_not_called()
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WuttaConfig.assert_called_once_with([myfile], appname='wuttatest',
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usedb=None, preferdb=None)
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# can specify default files as list
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generic_default_files.reset_mock()
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WuttaConfig.reset_mock()
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config = conf.make_config(appname='wuttatest', default_files=[myfile])
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generic_default_files.assert_not_called()
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WuttaConfig.assert_called_once_with([myfile], appname='wuttatest',
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usedb=None, preferdb=None)
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# can specify default files as callable
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generic_default_files.reset_mock()
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WuttaConfig.reset_mock()
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config = conf.make_config(appname='wuttatest', default_files=lambda appname: [myfile])
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generic_default_files.assert_not_called()
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WuttaConfig.assert_called_once_with([myfile], appname='wuttatest',
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usedb=None, preferdb=None)
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def test_specify_plus_files(self):
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generic = self.write_file('generic.conf', '')
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myfile = self.write_file('my.conf', '')
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with patch('wuttjamaican.conf.generic_default_files') as generic_default_files:
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with patch('wuttjamaican.conf.WuttaConfig') as WuttaConfig:
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|
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generic_default_files.return_value = [generic]
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|
|
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# no plus files by default
|
|
config = conf.make_config(appname='wuttatest')
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generic_default_files.assert_called_once_with('wuttatest')
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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('wuttjamaican.conf.WuttaConfig') as WuttaConfig:
|
|
with patch('wuttjamaican.conf.load_entry_points') as load_entry_points:
|
|
|
|
# no entry points loaded if extend=False
|
|
config = conf.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 = conf.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 = conf.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 = conf.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)
|