mwparserfromhell/tests/test_heading.py

#
# Copyright (C) 2012-2016 Ben Kurtovic <ben.kurtovic@gmail.com>
#
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# of this software and associated documentation files (the "Software"), to deal
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# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
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# The above copyright notice and this permission notice shall be included in
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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import pytest

from mwparserfromhell.nodes import Heading, Text

from ._test_tree_equality import TreeEqualityTestCase, wrap, wraptext

class TestHeading(TreeEqualityTestCase):
    """Test cases for the Heading node."""

    def test_unicode(self):
        """test Heading.__unicode__()"""
        node = Heading(wraptext("foobar"), 2)
        assert "==foobar==" == str(node)
        node2 = Heading(wraptext(" zzz "), 5)
        assert "===== zzz =====" == str(node2)

    def test_children(self):
        """test Heading.__children__()"""
        node = Heading(wrap([Text("foo"), Text("bar")]), 3)
        gen = node.__children__()
        assert node.title == next(gen)
        with pytest.raises(StopIteration):
            next(gen)

    def test_strip(self):
        """test Heading.__strip__()"""
        node = Heading(wraptext("foobar"), 3)
        assert "foobar" == node.__strip__()

    def test_showtree(self):
        """test Heading.__showtree__()"""
        output = []
        getter = object()
        get = lambda code: output.append((getter, code))
        node1 = Heading(wraptext("foobar"), 3)
        node2 = Heading(wraptext(" baz "), 4)
        node1.__showtree__(output.append, get, None)
        node2.__showtree__(output.append, get, None)
        valid = ["===", (getter, node1.title), "===",
                 "====", (getter, node2.title), "===="]
        assert valid == output

    def test_title(self):
        """test getter/setter for the title attribute"""
        title = wraptext("foobar")
        node = Heading(title, 3)
        assert title is node.title
        node.title = "héhehé"
        self.assertWikicodeEqual(wraptext("héhehé"), node.title)

    def test_level(self):
        """test getter/setter for the level attribute"""
        node = Heading(wraptext("foobar"), 3)
        assert 3 == node.level
        node.level = 5
        assert 5 == node.level
        with pytest.raises(ValueError):
            node.__setattr__("level", 0)
        with pytest.raises(ValueError):
            node.__setattr__("level", 7)
        with pytest.raises(ValueError):
            node.__setattr__("level", "abc")
        with pytest.raises(ValueError):
            node.__setattr__("level", False)