How to use the mwparserfromhell.nodes.extras.Attribute function in mwparserfromhell

def test_name(self):
        """test getter/setter for the name attribute"""
        name = wraptext("id")
        node = Attribute(name, wraptext("bar"))
        self.assertIs(name, node.name)
        node.name = "{{id}}"
        self.assertWikicodeEqual(wrap([Template(wraptext("id"))]), node.name)

def test_padding(self):
        """test getter/setter for the padding attributes"""
        for pad in ["pad_first", "pad_before_eq", "pad_after_eq"]:
            node = Attribute(wraptext("id"), wraptext("foo"), **{pad: "\n"})
            self.assertEqual("\n", getattr(node, pad))
            setattr(node, pad, " ")
            self.assertEqual(" ", getattr(node, pad))
            setattr(node, pad, None)
            self.assertEqual("", getattr(node, pad))
            self.assertRaises(ValueError, setattr, node, pad, True)

def test_unicode(self):
        """test Attribute.__unicode__()"""
        node = Attribute(wraptext("foo"))
        self.assertEqual(" foo", str(node))
        node2 = Attribute(wraptext("foo"), wraptext("bar"))
        self.assertEqual(' foo="bar"', str(node2))
        node3 = Attribute(wraptext("a"), wraptext("b"), '"', "", " ", "   ")
        self.assertEqual('a =   "b"', str(node3))
        node4 = Attribute(wraptext("a"), wraptext("b"), "'", "", " ", "   ")
        self.assertEqual("a =   'b'", str(node4))
        node5 = Attribute(wraptext("a"), wraptext("b"), None, "", " ", "   ")
        self.assertEqual("a =   b", str(node5))
        node6 = Attribute(wraptext("a"), wrap([]), None, " ", "", " ")
        self.assertEqual(" a= ", str(node6))

# 
            ([tokens.TagOpenOpen(), tokens.Text(text="ref"),
              tokens.TagCloseOpen(padding=""), tokens.TagOpenClose(),
              tokens.Text(text="ref"), tokens.TagCloseClose()],
             wrap([Tag(wraptext("ref"), wrap([]),
                       closing_tag=wraptext("ref"))])),

            # 
            ([tokens.TagOpenOpen(), tokens.Text(text="ref"),
              tokens.TagAttrStart(pad_first=" ", pad_before_eq="",
                                  pad_after_eq=""),
              tokens.Text(text="name"), tokens.TagCloseOpen(padding=""),
              tokens.TagOpenClose(), tokens.Text(text="ref"),
              tokens.TagCloseClose()],
             wrap([Tag(wraptext("ref"), wrap([]),
                      attrs=[Attribute(wraptext("name"))])])),

            # 
            ([tokens.TagOpenOpen(), tokens.Text(text="ref"),
              tokens.TagAttrStart(pad_first=" ", pad_before_eq="",
                                  pad_after_eq=""),
              tokens.Text(text="name"), tokens.TagAttrEquals(),
              tokens.TagAttrQuote(char='"'), tokens.Text(text="abc"),
              tokens.TagCloseSelfclose(padding=" ")],
             wrap([Tag(wraptext("ref"),
                       attrs=[Attribute(wraptext("name"), wraptext("abc"))],
                       self_closing=True, padding=" ")])),

            # <br>
            ([tokens.TagOpenOpen(), tokens.Text(text="br"),
              tokens.TagCloseSelfclose(padding="")],
             wrap([Tag(wraptext("br"), self_closing=True)])),

def test_value(self):
        """test getter/setter for the value attribute"""
        value = wraptext("foo")
        node = Attribute(wraptext("id"), value)
        self.assertIs(value, node.value)
        node.value = "{{bar}}"
        self.assertWikicodeEqual(wrap([Template(wraptext("bar"))]), node.value)
        node.value = None
        self.assertIs(None, node.value)
        node2 = Attribute(wraptext("id"), wraptext("foo"), None)
        node2.value = "foo bar baz"
        self.assertWikicodeEqual(wraptext("foo bar baz"), node2.value)
        self.assertEqual('"', node2.quotes)
        node2.value = 'foo "bar" baz'
        self.assertWikicodeEqual(wraptext('foo "bar" baz'), node2.value)
        self.assertEqual("'", node2.quotes)
        node2.value = "foo 'bar' baz"
        self.assertWikicodeEqual(wraptext("foo 'bar' baz"), node2.value)
        self.assertEqual('"', node2.quotes)
        node2.value = "fo\"o 'bar' b\"az"

agen = lambda name, value: Attribute(wraptext(name), wraptext(value))
agennv = lambda name: Attribute(wraptext(name))

agenp = lambda name, v, a, b, c: Attribute(wraptext(name), v, '"', a, b, c)
agenpnv = lambda name, a, b, c: Attribute(wraptext(name), None, '"', a, b, c)

agennq = lambda name, value: Attribute(wraptext(name), wraptext(value), None)
agenp = lambda name, v, a, b, c: Attribute(wraptext(name), v, '"', a, b, c)

self._push()
        while self._tokens:
            token = self._tokens.pop()
            if isinstance(token, tokens.TagAttrEquals):
                name = self._pop()
                self._push()
            elif isinstance(token, tokens.TagAttrQuote):
                quotes = token.char
            elif isinstance(token, (tokens.TagAttrStart, tokens.TagCloseOpen,
                                    tokens.TagCloseSelfclose)):
                self._tokens.append(token)
                if name:
                    value = self._pop()
                else:
                    name, value = self._pop(), None
                return Attribute(name, value, quotes, start.pad_first,
                                 start.pad_before_eq, start.pad_after_eq)
            else:
                self._write(self._handle_token(token))
        raise ParserError("_handle_attribute() missed a close token")

"""Add an attribute with the given *name* and *value*.

        *name* and *value* can be anything parsable by
        :func:`.utils.parse_anything`; *value* can be omitted if the attribute
        is valueless. If *quotes* is not ``None``, it should be a string
        (either ``"`` or ``'``) that *value* will be wrapped in (this is
        recommended). ``None`` is only legal if *value* contains no spacing.

        *pad_first*, *pad_before_eq*, and *pad_after_eq* are whitespace used as
        padding before the name, before the equal sign (or after the name if no
        value), and after the equal sign (ignored if no value), respectively.
        """
        if value is not None:
            value = parse_anything(value)
        quotes = Attribute.coerce_quotes(quotes)
        attr = Attribute(parse_anything(name), value, quotes)
        attr.pad_first = pad_first
        attr.pad_before_eq = pad_before_eq
        attr.pad_after_eq = pad_after_eq
        self.attributes.append(attr)
        return attr