Method test_format_layoutlist

Lib/test/test_ttk_textonly.py:232–286

(self)

    def test_format_layoutlist(self):
        def sample(indent=0, indent_size=2):
            return ttk._format_layoutlist(
            [('a', {'other': [1, 2, 3], 'children':
                [('b', {'children':
                    [('c', {'children':
                        [('d', {'nice': 'opt'})], 'something': (1, 2)
                    })]
                })]
            })], indent=indent, indent_size=indent_size)[0]

        def sample_expected(indent=0, indent_size=2):
            spaces = lambda amount=0: ' ' * (amount + indent)
            return (
                "%sa -other {1 2 3} -children {\n"
                "%sb -children {\n"
                "%sc -something {1 2} -children {\n"
                "%sd -nice opt\n"
                "%s}\n"
                "%s}\n"
                "%s}" % (spaces(), spaces(indent_size),
                    spaces(2 * indent_size), spaces(3 * indent_size),
                    spaces(2 * indent_size), spaces(indent_size), spaces()))

        # empty layout
        self.assertEqual(ttk._format_layoutlist([])[0], '')

        # _format_layoutlist always expects the second item (in every item)
        # to act like a dict (except when the value evaluates to False).
        self.assertRaises(AttributeError,
            ttk._format_layoutlist, [('a', 'b')])

        smallest = ttk._format_layoutlist([('a', None)], indent=0)
        self.assertEqual(smallest,
            ttk._format_layoutlist([('a', '')], indent=0))
        self.assertEqual(smallest[0], 'a')

        # testing indentation levels
        self.assertEqual(sample(), sample_expected())
        for i in range(4):
            self.assertEqual(sample(i), sample_expected(i))
            self.assertEqual(sample(i, i), sample_expected(i, i))

        # invalid layout format, different kind of exceptions will be
        # raised by internal functions

        # plain wrong format
        self.assertRaises(ValueError, ttk._format_layoutlist,
            ['bad', 'format'])
        # will try to use iteritems in the 'bad' string
        self.assertRaises(AttributeError, ttk._format_layoutlist,
           [('name', 'bad')])
        # bad children formatting
        self.assertRaises(ValueError, ttk._format_layoutlist,
            [('name', {'children': {'a': None}})])


    def test_script_from_settings(self):