def test_containter_return_themselfs_if_string_added(self):
div = HtmlDiv()
return_value = div.add('abc')
assert div == return_value
def test_indents(self):
div = HtmlDiv()
div2 = HtmlDiv()
div.add(div2)
def test_containter_return_added_objects(self):
div = HtmlDiv()
cell = HtmlCell()
return_value = div.add(cell)
assert cell == return_value