65 lines
2.4 KiB
Python
65 lines
2.4 KiB
Python
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# -*- coding: utf-8; -*-
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from unittest.mock import patch, MagicMock
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from wuttjamaican.testing import DataTestCase
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try:
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import sqlalchemy as sa
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from wuttjamaican.db import handler as mod
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except ImportError:
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pass
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else:
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class TestDatabaseHandler(DataTestCase):
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def make_handler(self, **kwargs):
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return mod.DatabaseHandler(self.config, **kwargs)
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def test_next_counter_value_sqlite(self):
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handler = self.make_handler()
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# counter table should not exist yet
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metadata = sa.MetaData()
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metadata.reflect(self.session.bind)
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self.assertNotIn('_counter_testing', metadata.tables)
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# using sqlite as backend, should make table for counter
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value = handler.next_counter_value(self.session, 'testing')
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self.assertEqual(value, 1)
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# counter table should exist now
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metadata.reflect(self.session.bind)
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self.assertIn('_counter_testing', metadata.tables)
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# counter increments okay
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value = handler.next_counter_value(self.session, 'testing')
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self.assertEqual(value, 2)
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value = handler.next_counter_value(self.session, 'testing')
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self.assertEqual(value, 3)
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def test_next_counter_value_postgres(self):
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handler = self.make_handler()
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# counter table should not exist
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metadata = sa.MetaData()
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metadata.reflect(self.session.bind)
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self.assertNotIn('_counter_testing', metadata.tables)
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# nb. we have to pretty much mock this out, can't really
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# test true sequence behavior for postgres since tests are
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# using sqlite backend.
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# using postgres as backend, should use "sequence"
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with patch.object(self.session.bind.url, 'get_dialect') as get_dialect:
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get_dialect.return_value.name = 'postgresql'
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with patch.object(self.session, 'execute') as execute:
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execute.return_value.scalar.return_value = 1
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value = handler.next_counter_value(self.session, 'testing')
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self.assertEqual(value, 1)
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execute.return_value.scalar.assert_called_once_with()
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# counter table should still not exist
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metadata.reflect(self.session.bind)
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self.assertNotIn('_counter_testing', metadata.tables)
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