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Viewing changes to bzrlib/tests/test__static_tuple.py

  • Committer: John Arbash Meinel
  • Date: 2009-10-13 18:00:16 UTC
  • mto: This revision was merged to the branch mainline in revision 4755.
  • Revision ID: john@arbash-meinel.com-20091013180016-y9ciypkm8lor58fx
Implement StaticTuple.from_sequence()

This allows casting from something that *might* be a StaticTuple
into something that is definitely a StaticTuple, without having to
create a new instance.

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Lines of Context:
bzrlib/tests/test__static_tuple.py
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        if self.module is _static_tuple_py:
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            return
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        self.assertIsNot(None, self.module._C_API)
 
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    def test_from_sequence_tuple(self):
 
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        st = self.module.StaticTuple.from_sequence(('foo', 'bar'))
 
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        self.assertIsInstance(st, self.module.StaticTuple)
 
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        self.assertEqual(('foo', 'bar'), st)
 
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    def test_from_sequence_str(self):
 
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        st = self.module.StaticTuple.from_sequence('foo')
 
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        self.assertIsInstance(st, self.module.StaticTuple)
 
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        self.assertEqual(('f', 'o', 'o'), st)
 
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    def test_from_sequence_list(self):
 
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        st = self.module.StaticTuple.from_sequence(['foo', 'bar'])
 
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        self.assertIsInstance(st, self.module.StaticTuple)
 
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        self.assertEqual(('foo', 'bar'), st)
 
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    def test_from_sequence_static_tuple(self):
 
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        st = self.module.StaticTuple('foo', 'bar')
 
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        st2 = self.module.StaticTuple.from_sequence(st)
 
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        # If the source is a StaticTuple already, we return the exact object
 
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        self.assertIs(st, st2)
 
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    def test_from_sequence_not_sequence(self):
 
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        self.assertRaises(TypeError,
 
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                          self.module.StaticTuple.from_sequence, object())
 
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    def test_from_sequence_incorrect_args(self):
 
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        self.assertRaises(TypeError,
 
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                          self.module.StaticTuple.from_sequence, object(), 'a')
 
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        self.assertRaises(TypeError,
 
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                          self.module.StaticTuple.from_sequence, foo='a')