'Init with ndarray and copy=False and show that this is a reference
to input ndarray'

def test_ndarray_ref(self, table_type):

    self._setup(table_type)
    t = table_type(self.data, copy=False)
    t['col1'][1] = 0
    assert (t.as_array()['col1'][1] == 0)
    assert (t['col1'][1] == 0)
    assert (self.data[1][1] == 0)
