mwparserfromhell/tests/test_external_link.py

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

from mwparserfromhell.nodes import ExternalLink, Text

from ._test_tree_equality import TreeEqualityTestCase, wrap, wraptext

class TestExternalLink(TreeEqualityTestCase):
    """Test cases for the ExternalLink node."""

    def test_unicode(self):
        """test ExternalLink.__unicode__()"""
        node = ExternalLink(wraptext("http://example.com/"), brackets=False)
        assert "http://example.com/" == str(node)
        node2 = ExternalLink(wraptext("http://example.com/"))
        assert "[http://example.com/]" == str(node2)
        node3 = ExternalLink(wraptext("http://example.com/"), wrap([]))
        assert "[http://example.com/ ]" == str(node3)
        node4 = ExternalLink(wraptext("http://example.com/"),
                             wraptext("Example Web Page"))
        assert "[http://example.com/ Example Web Page]" == str(node4)

    def test_children(self):
        """test ExternalLink.__children__()"""
        node1 = ExternalLink(wraptext("http://example.com/"), brackets=False)
        node2 = ExternalLink(wraptext("http://example.com/"),
                             wrap([Text("Example"), Text("Page")]))
        gen1 = node1.__children__()
        gen2 = node2.__children__()
        assert node1.url == next(gen1)
        assert node2.url == next(gen2)
        assert node2.title == next(gen2)
        with pytest.raises(StopIteration):
            next(gen1)
        with pytest.raises(StopIteration):
            next(gen2)

    def test_strip(self):
        """test ExternalLink.__strip__()"""
        node1 = ExternalLink(wraptext("http://example.com"), brackets=False)
        node2 = ExternalLink(wraptext("http://example.com"))
        node3 = ExternalLink(wraptext("http://example.com"), wrap([]))
        node4 = ExternalLink(wraptext("http://example.com"), wraptext("Link"))

        assert "http://example.com" == node1.__strip__()
        assert node2.__strip__() is None
        assert node3.__strip__() is None
        assert "Link" == node4.__strip__()

    def test_showtree(self):
        """test ExternalLink.__showtree__()"""
        output = []
        getter, marker = object(), object()
        get = lambda code: output.append((getter, code))
        mark = lambda: output.append(marker)
        node1 = ExternalLink(wraptext("http://example.com"), brackets=False)
        node2 = ExternalLink(wraptext("http://example.com"), wraptext("Link"))
        node1.__showtree__(output.append, get, mark)
        node2.__showtree__(output.append, get, mark)
        valid = [
            (getter, node1.url), "[", (getter, node2.url),
            (getter, node2.title), "]"]
        assert valid == output

    def test_url(self):
        """test getter/setter for the url attribute"""
        url = wraptext("http://example.com/")
        node1 = ExternalLink(url, brackets=False)
        node2 = ExternalLink(url, wraptext("Example"))
        assert url is node1.url
        assert url is node2.url
        node1.url = "mailto:héhehé@spam.com"
        node2.url = "mailto:héhehé@spam.com"
        self.assertWikicodeEqual(wraptext("mailto:héhehé@spam.com"), node1.url)
        self.assertWikicodeEqual(wraptext("mailto:héhehé@spam.com"), node2.url)

    def test_title(self):
        """test getter/setter for the title attribute"""
        title = wraptext("Example!")
        node1 = ExternalLink(wraptext("http://example.com/"), brackets=False)
        node2 = ExternalLink(wraptext("http://example.com/"), title)
        assert None is node1.title
        assert title is node2.title
        node2.title = None
        assert None is node2.title
        node2.title = "My Website"
        self.assertWikicodeEqual(wraptext("My Website"), node2.title)

    def test_brackets(self):
        """test getter/setter for the brackets attribute"""
        node1 = ExternalLink(wraptext("http://example.com/"), brackets=False)
        node2 = ExternalLink(wraptext("http://example.com/"), wraptext("Link"))
        assert node1.brackets is False
        assert node2.brackets is True
        node1.brackets = True
        node2.brackets = False
        assert node1.brackets is True
        assert node2.brackets is False
        assert "[http://example.com/]" == str(node1)
        assert "http://example.com/" == str(node2)