def test_setitem_ambig(self):
# difficulties with mixed-type data
from decimal import Decimal
# created as float type
dm = DataMatrix(index=range(3), columns=range(3))
coercable_series = Series([Decimal(1) for _ in range(3)],
index=range(3))
uncoercable_series = Series(['foo', 'bzr', 'baz'], index=range(3))
dm[0] = np.ones(3)
self.assertEqual(len(dm.cols()), 3)
self.assert_(dm.objects is None)
dm[1] = coercable_series
self.assertEqual(len(dm.cols()), 3)
self.assert_(dm.objects is None)
dm[2] = uncoercable_series
self.assertEqual(len(dm.cols()), 3)
self.assert_(dm.objects is not None)
self.assert_(2 in dm.objects)
self.assert_(2 not in dm.columns)
