42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
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from .. import fixtures, config
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from ..config import requirements
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from sqlalchemy import exc
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from sqlalchemy import Integer, String
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from .. import assert_raises
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from ..schema import Table, Column
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class ExceptionTest(fixtures.TablesTest):
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"""Test basic exception wrapping.
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DBAPIs vary a lot in exception behavior so to actually anticipate
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specific exceptions from real round trips, we need to be conservative.
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"""
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run_deletes = 'each'
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__backend__ = True
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@classmethod
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def define_tables(cls, metadata):
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Table('manual_pk', metadata,
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Column('id', Integer, primary_key=True, autoincrement=False),
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Column('data', String(50))
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)
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@requirements.duplicate_key_raises_integrity_error
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def test_integrity_error(self):
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with config.db.begin() as conn:
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conn.execute(
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self.tables.manual_pk.insert(),
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{'id': 1, 'data': 'd1'}
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)
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assert_raises(
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exc.IntegrityError,
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conn.execute,
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self.tables.manual_pk.insert(),
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{'id': 1, 'data': 'd1'}
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)
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