mirror of
https://github.com/sqlalchemy/sqlalchemy.git
synced 2026-05-16 13:47:20 -04:00
Khairi Hafsham
772374735d
tested using pycodestyle version 2.2.0 Fixes: #3885 Change-Id: I5df43adc3aefe318f9eeab72a078247a548ec566 Pull-request: https://github.com/zzzeek/sqlalchemy/pull/343
44 lines
1.2 KiB
Python
44 lines
1.2 KiB
Python
"""test the inspection registry system."""
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from sqlalchemy import inspect
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from sqlalchemy import Table, Column, Integer, MetaData
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from sqlalchemy.testing import fixtures
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from sqlalchemy.testing import is_
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class TestCoreInspection(fixtures.TestBase):
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def test_table(self):
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t = Table('t', MetaData(),
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Column('x', Integer)
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)
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is_(inspect(t), t)
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assert t.is_selectable
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is_(t.selectable, t)
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def test_select(self):
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t = Table('t', MetaData(),
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Column('x', Integer)
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)
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s = t.select()
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is_(inspect(s), s)
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assert s.is_selectable
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is_(s.selectable, s)
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def test_column_expr(self):
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c = Column('x', Integer)
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is_(inspect(c), c)
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assert not c.is_selectable
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assert not hasattr(c, 'selectable')
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def test_no_clause_element_on_clauseelement(self):
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# re [ticket:3802], there are in the wild examples
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# of looping over __clause_element__, therefore the
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# absence of __clause_element__ as a test for "this is the clause
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# element" must be maintained
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x = Column('foo', Integer)
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assert not hasattr(x, '__clause_element__')
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