mwparserfromhell/tests/test_attribute.py

# Copyright (C) 2012-2020 Ben Kurtovic <ben.kurtovic@gmail.com>
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import pytest

from mwparserfromhell.nodes import Template
from mwparserfromhell.nodes.extras import Attribute

from ._test_tree_equality import TreeEqualityTestCase, wrap, wraptext

class TestAttribute(TreeEqualityTestCase):
    """Test cases for the Attribute node extra."""

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

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

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

    def test_quotes(self):
        """test getter/setter for the quotes attribute"""
        node1 = Attribute(wraptext("id"), wraptext("foo"), None)
        node2 = Attribute(wraptext("id"), wraptext("bar"))
        node3 = Attribute(wraptext("id"), wraptext("foo bar baz"))
        assert None is node1.quotes
        assert '"' == node2.quotes
        node1.quotes = "'"
        node2.quotes = None
        assert "'" == node1.quotes
        assert None is node2.quotes
        with pytest.raises(ValueError):
            node1.__setattr__("quotes", "foobar")
        with pytest.raises(ValueError):
            node3.__setattr__("quotes", None)
        with pytest.raises(ValueError):
            Attribute(wraptext("id"), wraptext("foo bar baz"), None)

    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"})
            assert "\n" == getattr(node, pad)
            setattr(node, pad, " ")
            assert " " == getattr(node, pad)
            setattr(node, pad, None)
            assert "" == getattr(node, pad)
            with pytest.raises(ValueError):
                node.__setattr__(pad, True)