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345 lines
9.2 KiB
Python
345 lines
9.2 KiB
Python
from . import config
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from . import assertions, schema
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from .util import adict
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from .engines import drop_all_tables
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from .entities import BasicEntity, ComparableEntity
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import sys
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import sqlalchemy as sa
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from sqlalchemy.ext.declarative import declarative_base, DeclarativeMeta
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class TestBase(object):
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# A sequence of database names to always run, regardless of the
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# constraints below.
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__whitelist__ = ()
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# A sequence of requirement names matching testing.requires decorators
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__requires__ = ()
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# A sequence of dialect names to exclude from the test class.
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__unsupported_on__ = ()
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# If present, test class is only runnable for the *single* specified
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# dialect. If you need multiple, use __unsupported_on__ and invert.
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__only_on__ = None
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# A sequence of no-arg callables. If any are True, the entire testcase is
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# skipped.
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__skip_if__ = None
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def assert_(self, val, msg=None):
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assert val, msg
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class TablesTest(TestBase):
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# 'once', None
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run_setup_bind = 'once'
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# 'once', 'each', None
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run_define_tables = 'once'
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# 'once', 'each', None
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run_create_tables = 'once'
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# 'once', 'each', None
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run_inserts = 'each'
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# 'each', None
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run_deletes = 'each'
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# 'once', None
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run_dispose_bind = None
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bind = None
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metadata = None
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tables = None
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other = None
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@classmethod
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def setup_class(cls):
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cls._init_class()
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cls._setup_once_tables()
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cls._setup_once_inserts()
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@classmethod
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def _init_class(cls):
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if cls.run_define_tables == 'each':
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if cls.run_create_tables == 'once':
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cls.run_create_tables = 'each'
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assert cls.run_inserts in ('each', None)
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if cls.other is None:
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cls.other = adict()
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if cls.tables is None:
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cls.tables = adict()
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if cls.bind is None:
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setattr(cls, 'bind', cls.setup_bind())
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if cls.metadata is None:
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setattr(cls, 'metadata', sa.MetaData())
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if cls.metadata.bind is None:
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cls.metadata.bind = cls.bind
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@classmethod
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def _setup_once_inserts(cls):
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if cls.run_inserts == 'once':
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cls._load_fixtures()
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cls.insert_data()
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@classmethod
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def _setup_once_tables(cls):
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if cls.run_define_tables == 'once':
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cls.define_tables(cls.metadata)
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if cls.run_create_tables == 'once':
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cls.metadata.create_all(cls.bind)
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cls.tables.update(cls.metadata.tables)
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def _setup_each_tables(self):
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if self.run_define_tables == 'each':
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self.tables.clear()
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if self.run_create_tables == 'each':
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drop_all_tables(self.metadata, self.bind)
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self.metadata.clear()
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self.define_tables(self.metadata)
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if self.run_create_tables == 'each':
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self.metadata.create_all(self.bind)
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self.tables.update(self.metadata.tables)
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elif self.run_create_tables == 'each':
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drop_all_tables(self.metadata, self.bind)
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self.metadata.create_all(self.bind)
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def _setup_each_inserts(self):
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if self.run_inserts == 'each':
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self._load_fixtures()
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self.insert_data()
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def _teardown_each_tables(self):
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# no need to run deletes if tables are recreated on setup
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if self.run_define_tables != 'each' and self.run_deletes == 'each':
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for table in reversed(self.metadata.sorted_tables):
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try:
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table.delete().execute().close()
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except sa.exc.DBAPIError, ex:
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print >> sys.stderr, "Error emptying table %s: %r" % (
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table, ex)
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def setup(self):
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self._setup_each_tables()
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self._setup_each_inserts()
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def teardown(self):
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self._teardown_each_tables()
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@classmethod
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def _teardown_once_metadata_bind(cls):
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if cls.run_create_tables:
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drop_all_tables(cls.metadata, cls.bind)
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if cls.run_dispose_bind == 'once':
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cls.dispose_bind(cls.bind)
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cls.metadata.bind = None
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if cls.run_setup_bind is not None:
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cls.bind = None
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@classmethod
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def teardown_class(cls):
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cls._teardown_once_metadata_bind()
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@classmethod
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def setup_bind(cls):
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return config.db
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@classmethod
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def dispose_bind(cls, bind):
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if hasattr(bind, 'dispose'):
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bind.dispose()
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elif hasattr(bind, 'close'):
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bind.close()
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@classmethod
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def define_tables(cls, metadata):
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pass
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@classmethod
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def fixtures(cls):
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return {}
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@classmethod
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def insert_data(cls):
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pass
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def sql_count_(self, count, fn):
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self.assert_sql_count(self.bind, fn, count)
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def sql_eq_(self, callable_, statements, with_sequences=None):
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self.assert_sql(self.bind,
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callable_, statements, with_sequences)
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@classmethod
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def _load_fixtures(cls):
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"""Insert rows as represented by the fixtures() method."""
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headers, rows = {}, {}
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for table, data in cls.fixtures().iteritems():
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if len(data) < 2:
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continue
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if isinstance(table, basestring):
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table = cls.tables[table]
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headers[table] = data[0]
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rows[table] = data[1:]
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for table in cls.metadata.sorted_tables:
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if table not in headers:
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continue
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cls.bind.execute(
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table.insert(),
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[dict(zip(headers[table], column_values))
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for column_values in rows[table]])
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class _ORMTest(object):
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@classmethod
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def teardown_class(cls):
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sa.orm.session.Session.close_all()
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sa.orm.clear_mappers()
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class ORMTest(_ORMTest, TestBase):
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pass
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class MappedTest(_ORMTest, TablesTest, assertions.AssertsExecutionResults):
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# 'once', 'each', None
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run_setup_classes = 'once'
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# 'once', 'each', None
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run_setup_mappers = 'each'
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classes = None
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@classmethod
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def setup_class(cls):
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cls._init_class()
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if cls.classes is None:
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cls.classes = adict()
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cls._setup_once_tables()
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cls._setup_once_classes()
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cls._setup_once_mappers()
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cls._setup_once_inserts()
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@classmethod
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def teardown_class(cls):
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cls._teardown_once_class()
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cls._teardown_once_metadata_bind()
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def setup(self):
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self._setup_each_tables()
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self._setup_each_mappers()
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self._setup_each_inserts()
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def teardown(self):
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sa.orm.session.Session.close_all()
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self._teardown_each_mappers()
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self._teardown_each_tables()
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@classmethod
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def _teardown_once_class(cls):
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cls.classes.clear()
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_ORMTest.teardown_class()
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@classmethod
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def _setup_once_classes(cls):
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if cls.run_setup_classes == 'once':
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cls._with_register_classes(cls.setup_classes)
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@classmethod
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def _setup_once_mappers(cls):
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if cls.run_setup_mappers == 'once':
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cls._with_register_classes(cls.setup_mappers)
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def _setup_each_mappers(self):
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if self.run_setup_mappers == 'each':
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self._with_register_classes(self.setup_mappers)
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@classmethod
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def _with_register_classes(cls, fn):
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"""Run a setup method, framing the operation with a Base class
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that will catch new subclasses to be established within
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the "classes" registry.
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"""
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cls_registry = cls.classes
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class FindFixture(type):
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def __init__(cls, classname, bases, dict_):
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cls_registry[classname] = cls
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return type.__init__(cls, classname, bases, dict_)
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class _Base(object):
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__metaclass__ = FindFixture
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class Basic(BasicEntity, _Base):
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pass
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class Comparable(ComparableEntity, _Base):
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pass
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cls.Basic = Basic
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cls.Comparable = Comparable
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fn()
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def _teardown_each_mappers(self):
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# some tests create mappers in the test bodies
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# and will define setup_mappers as None -
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# clear mappers in any case
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if self.run_setup_mappers != 'once':
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sa.orm.clear_mappers()
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@classmethod
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def setup_classes(cls):
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pass
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@classmethod
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def setup_mappers(cls):
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pass
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class DeclarativeMappedTest(MappedTest):
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run_setup_classes = 'once'
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run_setup_mappers = 'once'
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@classmethod
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def _setup_once_tables(cls):
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pass
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@classmethod
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def _with_register_classes(cls, fn):
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cls_registry = cls.classes
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class FindFixtureDeclarative(DeclarativeMeta):
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def __init__(cls, classname, bases, dict_):
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cls_registry[classname] = cls
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return DeclarativeMeta.__init__(
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cls, classname, bases, dict_)
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class DeclarativeBasic(object):
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__table_cls__ = schema.Table
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_DeclBase = declarative_base(metadata=cls.metadata,
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metaclass=FindFixtureDeclarative,
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cls=DeclarativeBasic)
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cls.DeclarativeBasic = _DeclBase
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fn()
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if cls.metadata.tables:
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cls.metadata.create_all(config.db)
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