def check_floatcolumn_typing():
dm = DataMatrix(length=4, default_col_type=FloatColumn)
dm.f = 1.1, '1.1', 1, '2'
assert all(isinstance(v, float) for v in dm.f)
dm.inf = INF, -INF, 'inf', '-inf'
assert all(math.isinf(v) for v in dm.inf)
dm.nan = NAN, NAN, 'nan', 'nan'
assert all(math.isnan(v) for v in dm.nan)
with pytest.warns(UserWarning):
dm.none = None, None, None, None
assert all(math.isnan(v) for v in dm.none)
with pytest.warns(UserWarning):
dm.s = 'alpha', 'beta', 'None', ' '
assert all(math.isnan(v) for v in dm.s)
with pytest.raises(TypeError):
dm.err = Exception, tuple, str, map
