c3efbfbf7b
had to move `make_engine_from_config()` out of app handler and define as a separate function, so that `get_engines()` did not need to instantiate the app handler. because if it did, then config extensions would lose the ability to set a default app handler - er, they could do it but it would be ignored
133 lines
3.6 KiB
Python
133 lines
3.6 KiB
Python
# -*- coding: utf-8; -*-
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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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import sqlalchemy as sa
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from sqlalchemy import orm
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from sqlalchemy.engine import Engine
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from sqlalchemy.pool import NullPool
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from wuttjamaican.db import conf
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from wuttjamaican.conf import WuttaConfig
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class TestGetEngines(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_no_default(self):
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myfile = self.write_file('my.conf', '')
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config = WuttaConfig([myfile])
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self.assertEqual(conf.get_engines(config, 'wuttadb'), {})
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def test_default(self):
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myfile = self.write_file('my.conf', """\
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[wuttadb]
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default.url = sqlite://
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""")
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config = WuttaConfig([myfile])
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result = conf.get_engines(config, 'wuttadb')
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self.assertEqual(len(result), 1)
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self.assertIn('default', result)
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engine = result['default']
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self.assertEqual(engine.dialect.name, 'sqlite')
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def test_default_fallback(self):
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myfile = self.write_file('my.conf', """\
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[wuttadb]
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sqlalchemy.url = sqlite://
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""")
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config = WuttaConfig([myfile])
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result = conf.get_engines(config, 'wuttadb')
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self.assertEqual(len(result), 1)
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self.assertIn('default', result)
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engine = result['default']
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self.assertEqual(engine.dialect.name, 'sqlite')
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def test_other(self):
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myfile = self.write_file('my.conf', """\
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[otherdb]
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keys = first, second
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first.url = sqlite://
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second.url = sqlite://
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""")
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config = WuttaConfig([myfile])
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result = conf.get_engines(config, 'otherdb')
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self.assertEqual(len(result), 2)
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self.assertIn('first', result)
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self.assertIn('second', result)
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class TestGetSetting(TestCase):
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def setUp(self):
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Session = orm.sessionmaker()
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engine = sa.create_engine('sqlite://')
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self.session = Session(bind=engine)
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self.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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def tearDown(self):
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self.session.close()
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def test_basic_value(self):
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self.session.execute(sa.text("insert into setting values ('foo', 'bar');"))
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value = conf.get_setting(self.session, 'foo')
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self.assertEqual(value, 'bar')
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def test_missing_value(self):
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value = conf.get_setting(self.session, 'foo')
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self.assertIsNone(value)
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class TestMakeEngineFromConfig(TestCase):
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def test_basic(self):
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engine = conf.make_engine_from_config({
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'sqlalchemy.url': 'sqlite://',
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})
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self.assertIsInstance(engine, Engine)
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def test_poolclass(self):
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engine = conf.make_engine_from_config({
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'sqlalchemy.url': 'sqlite://',
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})
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self.assertNotIsInstance(engine.pool, NullPool)
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engine = conf.make_engine_from_config({
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'sqlalchemy.url': 'sqlite://',
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'sqlalchemy.poolclass': 'sqlalchemy.pool:NullPool',
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})
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self.assertIsInstance(engine.pool, NullPool)
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def test_pool_pre_ping(self):
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engine = conf.make_engine_from_config({
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'sqlalchemy.url': 'sqlite://',
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})
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self.assertFalse(engine.pool._pre_ping)
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engine = conf.make_engine_from_config({
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'sqlalchemy.url': 'sqlite://',
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'sqlalchemy.pool_pre_ping': 'true',
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})
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self.assertTrue(engine.pool._pre_ping)
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