mwparserfromhell/tests/test_tag.py

#
# Copyright (C) 2012-2016 Ben Kurtovic <ben.kurtovic@gmail.com>
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import pytest

from mwparserfromhell.nodes import Tag, Template, Text
from mwparserfromhell.nodes.extras import Attribute
from ._test_tree_equality import TreeEqualityTestCase, wrap, wraptext

agen = lambda name, value: Attribute(wraptext(name), wraptext(value))
agennv = lambda name: Attribute(wraptext(name))
agennq = lambda name, value: Attribute(wraptext(name), wraptext(value), None)
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)

class TestTag(TreeEqualityTestCase):
    """Test cases for the Tag node."""

    def test_unicode(self):
        """test Tag.__unicode__()"""
        node1 = Tag(wraptext("ref"))
        node2 = Tag(wraptext("span"), wraptext("foo"),
                    [agen("style", "color: red;")])
        node3 = Tag(wraptext("ref"),
                    attrs=[agennq("name", "foo"),
                           agenpnv("some_attr", "   ", "", "")],
                    self_closing=True)
        node4 = Tag(wraptext("br"), self_closing=True, padding=" ")
        node5 = Tag(wraptext("br"), self_closing=True, implicit=True)
        node6 = Tag(wraptext("br"), self_closing=True, invalid=True,
                    implicit=True)
        node7 = Tag(wraptext("br"), self_closing=True, invalid=True,
                    padding=" ")
        node8 = Tag(wraptext("hr"), wiki_markup="----", self_closing=True)
        node9 = Tag(wraptext("i"), wraptext("italics!"), wiki_markup="''")

        assert "<ref></ref>" == str(node1)
        assert '<span style="color: red;">foo</span>' == str(node2)
        assert "<ref name=foo   some_attr/>" == str(node3)
        assert "<br />" == str(node4)
        assert "<br>" == str(node5)
        assert "</br>" == str(node6)
        assert "</br />" == str(node7)
        assert "----" == str(node8)
        assert "''italics!''" == str(node9)

    def test_children(self):
        """test Tag.__children__()"""
        # <ref>foobar</ref>
        node1 = Tag(wraptext("ref"), wraptext("foobar"))
        # '''bold text'''
        node2 = Tag(wraptext("b"), wraptext("bold text"), wiki_markup="'''")
        # <img id="foo" class="bar" selected />
        node3 = Tag(wraptext("img"),
                    attrs=[agen("id", "foo"), agen("class", "bar"),
                           agennv("selected")],
                    self_closing=True, padding=" ")

        gen1 = node1.__children__()
        gen2 = node2.__children__()
        gen3 = node3.__children__()
        assert node1.tag == next(gen1)
        assert node3.tag == next(gen3)
        assert node3.attributes[0].name == next(gen3)
        assert node3.attributes[0].value == next(gen3)
        assert node3.attributes[1].name == next(gen3)
        assert node3.attributes[1].value == next(gen3)
        assert node3.attributes[2].name == next(gen3)
        assert node1.contents == next(gen1)
        assert node2.contents == next(gen2)
        assert node1.closing_tag == next(gen1)
        with pytest.raises(StopIteration):
            next(gen1)
        with pytest.raises(StopIteration):
            next(gen2)
        with pytest.raises(StopIteration):
            next(gen3)

    def test_strip(self):
        """test Tag.__strip__()"""
        node1 = Tag(wraptext("i"), wraptext("foobar"))
        node2 = Tag(wraptext("math"), wraptext("foobar"))
        node3 = Tag(wraptext("br"), self_closing=True)

        assert "foobar" == node1.__strip__()
        assert None == node2.__strip__()
        assert None == node3.__strip__()

    def test_showtree(self):
        """test Tag.__showtree__()"""
        output = []
        getter, marker = object(), object()
        get = lambda code: output.append((getter, code))
        mark = lambda: output.append(marker)
        node1 = Tag(wraptext("ref"), wraptext("text"),
                    [agen("name", "foo"), agennv("selected")])
        node2 = Tag(wraptext("br"), self_closing=True, padding=" ")
        node3 = Tag(wraptext("br"), self_closing=True, invalid=True,
                    implicit=True, padding=" ")
        node1.__showtree__(output.append, get, mark)
        node2.__showtree__(output.append, get, mark)
        node3.__showtree__(output.append, get, mark)
        valid = [
            "<", (getter, node1.tag), (getter, node1.attributes[0].name),
            "    = ", marker, (getter, node1.attributes[0].value),
            (getter, node1.attributes[1].name), ">", (getter, node1.contents),
            "</", (getter, node1.closing_tag), ">", "<", (getter, node2.tag),
            "/>", "</", (getter, node3.tag), ">"]
        assert valid == output

    def test_tag(self):
        """test getter/setter for the tag attribute"""
        tag = wraptext("ref")
        node = Tag(tag, wraptext("text"))
        assert tag is node.tag
        assert tag is node.closing_tag
        node.tag = "span"
        self.assertWikicodeEqual(wraptext("span"), node.tag)
        self.assertWikicodeEqual(wraptext("span"), node.closing_tag)
        assert "<span>text</span>" == node

    def test_contents(self):
        """test getter/setter for the contents attribute"""
        contents = wraptext("text")
        node = Tag(wraptext("ref"), contents)
        assert contents is node.contents
        node.contents = "text and a {{template}}"
        parsed = wrap([Text("text and a "), Template(wraptext("template"))])
        self.assertWikicodeEqual(parsed, node.contents)
        assert "<ref>text and a {{template}}</ref>" == node

    def test_attributes(self):
        """test getter for the attributes attribute"""
        attrs = [agen("name", "bar")]
        node1 = Tag(wraptext("ref"), wraptext("foo"))
        node2 = Tag(wraptext("ref"), wraptext("foo"), attrs)
        assert [] == node1.attributes
        assert attrs is node2.attributes

    def test_wiki_markup(self):
        """test getter/setter for the wiki_markup attribute"""
        node = Tag(wraptext("i"), wraptext("italic text"))
        assert None is node.wiki_markup
        node.wiki_markup = "''"
        assert "''" == node.wiki_markup
        assert "''italic text''" == node
        node.wiki_markup = False
        assert node.wiki_markup is None
        assert "<i>italic text</i>" == node

    def test_self_closing(self):
        """test getter/setter for the self_closing attribute"""
        node = Tag(wraptext("ref"), wraptext("foobar"))
        assert node.self_closing is False
        node.self_closing = True
        assert node.self_closing is True
        assert "<ref/>" == node
        node.self_closing = 0
        assert node.self_closing is False
        assert "<ref>foobar</ref>" == node

    def test_invalid(self):
        """test getter/setter for the invalid attribute"""
        node = Tag(wraptext("br"), self_closing=True, implicit=True)
        assert node.invalid is False
        node.invalid = True
        assert node.invalid is True
        assert "</br>" == node
        node.invalid = 0
        assert node.invalid is False
        assert "<br>" == node

    def test_implicit(self):
        """test getter/setter for the implicit attribute"""
        node = Tag(wraptext("br"), self_closing=True)
        assert node.implicit is False
        node.implicit = True
        assert node.implicit is True
        assert "<br>" == node
        node.implicit = 0
        assert node.implicit is False
        assert "<br/>" == node

    def test_padding(self):
        """test getter/setter for the padding attribute"""
        node = Tag(wraptext("ref"), wraptext("foobar"))
        assert "" == node.padding
        node.padding = "  "
        assert "  " == node.padding
        assert "<ref  >foobar</ref>" == node
        node.padding = None
        assert "" == node.padding
        assert "<ref>foobar</ref>" == node
        with pytest.raises(ValueError):
            node.__setattr__("padding", True)

    def test_closing_tag(self):
        """test getter/setter for the closing_tag attribute"""
        tag = wraptext("ref")
        node = Tag(tag, wraptext("foobar"))
        assert tag is node.closing_tag
        node.closing_tag = "ref {{ignore me}}"
        parsed = wrap([Text("ref "), Template(wraptext("ignore me"))])
        self.assertWikicodeEqual(parsed, node.closing_tag)
        assert "<ref>foobar</ref {{ignore me}}>" == node

    def test_wiki_style_separator(self):
        """test getter/setter for wiki_style_separator attribute"""
        node = Tag(wraptext("table"), wraptext("\n"))
        assert None is node.wiki_style_separator
        node.wiki_style_separator = "|"
        assert "|" == node.wiki_style_separator
        node.wiki_markup = "{"
        assert "{|\n{" == node
        node2 = Tag(wraptext("table"), wraptext("\n"), wiki_style_separator="|")
        assert "|" == node.wiki_style_separator

    def test_closing_wiki_markup(self):
        """test getter/setter for closing_wiki_markup attribute"""
        node = Tag(wraptext("table"), wraptext("\n"))
        assert None is node.closing_wiki_markup
        node.wiki_markup = "{|"
        assert "{|" == node.closing_wiki_markup
        node.closing_wiki_markup = "|}"
        assert "|}" == node.closing_wiki_markup
        assert "{|\n|}" == node
        node.wiki_markup = "!!"
        assert "|}" == node.closing_wiki_markup
        assert "!!\n|}" == node
        node.wiki_markup = False
        assert node.closing_wiki_markup is None
        assert "<table>\n</table>" == node
        node2 = Tag(wraptext("table"), wraptext("\n"),
                    attrs=[agen("id", "foo")], wiki_markup="{|",
                    closing_wiki_markup="|}")
        assert "|}" == node2.closing_wiki_markup
        assert '{| id="foo"\n|}' == node2

    def test_has(self):
        """test Tag.has()"""
        node = Tag(wraptext("ref"), wraptext("cite"), [agen("name", "foo")])
        assert node.has("name") is True
        assert node.has("  name  ") is True
        assert node.has(wraptext("name")) is True
        assert node.has("Name") is False
        assert node.has("foo") is False

        attrs = [agen("id", "foo"), agenp("class", "bar", "  ", "\n", "\n"),
                 agen("foo", "bar"), agenpnv("foo", " ", "  \n ", " \t")]
        node2 = Tag(wraptext("div"), attrs=attrs, self_closing=True)
        assert node2.has("id") is True
        assert node2.has("class") is True
        assert node2.has(attrs[1].pad_first + str(attrs[1].name) +
                         attrs[1].pad_before_eq) is True
        assert node2.has(attrs[3]) is True
        assert node2.has(str(attrs[3])) is True
        assert node2.has("idclass") is False
        assert node2.has("id class") is False
        assert node2.has("id=foo") is False

    def test_get(self):
        """test Tag.get()"""
        attrs = [agen("name", "foo")]
        node = Tag(wraptext("ref"), wraptext("cite"), attrs)
        assert attrs[0] is node.get("name")
        assert attrs[0] is node.get("  name  ")
        assert attrs[0] is node.get(wraptext("name"))
        with pytest.raises(ValueError):
            node.get("Name")
        with pytest.raises(ValueError):
            node.get("foo")

        attrs = [agen("id", "foo"), agenp("class", "bar", "  ", "\n", "\n"),
                 agen("foo", "bar"), agenpnv("foo", " ", "  \n ", " \t")]
        node2 = Tag(wraptext("div"), attrs=attrs, self_closing=True)
        assert attrs[0] is node2.get("id")
        assert attrs[1] is node2.get("class")
        assert attrs[1] is node2.get(
            attrs[1].pad_first + str(attrs[1].name) + attrs[1].pad_before_eq)
        assert attrs[3] is node2.get(attrs[3])
        assert attrs[3] is node2.get(str(attrs[3]))
        assert attrs[3] is node2.get(" foo")
        with pytest.raises(ValueError):
            node2.get("idclass")
        with pytest.raises(ValueError):
            node2.get("id class")
        with pytest.raises(ValueError):
            node2.get("id=foo")

    def test_add(self):
        """test Tag.add()"""
        node = Tag(wraptext("ref"), wraptext("cite"))
        node.add("name", "value")
        node.add("name", "value", quotes=None)
        node.add("name", "value", quotes="'")
        node.add("name")
        node.add(1, False)
        node.add("style", "{{foobar}}")
        node.add("name", "value", '"', "\n", " ", "   ")
        attr1 = ' name="value"'
        attr2 = " name=value"
        attr3 = " name='value'"
        attr4 = " name"
        attr5 = ' 1="False"'
        attr6 = ' style="{{foobar}}"'
        attr7 = '\nname =   "value"'
        assert attr1 == node.attributes[0]
        assert attr2 == node.attributes[1]
        assert attr3 == node.attributes[2]
        assert attr4 == node.attributes[3]
        assert attr5 == node.attributes[4]
        assert attr6 == node.attributes[5]
        assert attr7 == node.attributes[6]
        assert attr7 == node.get("name")
        self.assertWikicodeEqual(wrap([Template(wraptext("foobar"))]),
                                 node.attributes[5].value)
        assert "".join(("<ref", attr1, attr2, attr3, attr4, attr5,
                        attr6, attr7, ">cite</ref>")) == node
        with pytest.raises(ValueError):
            node.add("name", "foo", quotes="bar")
        with pytest.raises(ValueError):
            node.add("name", "a bc d", quotes=None)

    def test_remove(self):
        """test Tag.remove()"""
        attrs = [agen("id", "foo"), agenp("class", "bar", "  ", "\n", "\n"),
                 agen("foo", "bar"), agenpnv("foo", " ", "  \n ", " \t")]
        node = Tag(wraptext("div"), attrs=attrs, self_closing=True)
        node.remove("class")
        assert '<div id="foo" foo="bar" foo  \n />' == node
        node.remove("foo")
        assert '<div id="foo"/>' == node
        with pytest.raises(ValueError):
            node.remove("foo")
        node.remove("id")
        assert '<div/>' == node