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# test_stackDicts.py -- Portage Unit Testing Functionality
# Copyright 2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

from portage.tests import TestCase
from portage.util import stack_dicts


class StackDictsTestCase(TestCase):
    def testStackDictsPass(self):
        tests = [
            ([{"a": "b"}, {"b": "c"}], {"a": "b", "b": "c"}, False, [], False),
            ([{"a": "b"}, {"a": "c"}], {"a": "b c"}, True, [], False),
            ([{"a": "b"}, {"a": "c"}], {"a": "b c"}, False, ["a"], False),
            ([{"a": "b"}, None], {"a": "b"}, False, [], True),
            ([None], {}, False, [], False),
            ([None, {}], {}, False, [], True),
        ]
        for test in tests:
            result = stack_dicts(test[0], test[2], test[3], test[4])
            self.assertEqual(result, test[1])

    def testStackDictsFail(self):
        tests = [
            ([None, {}], None, False, [], True),
            ([{"a": "b"}, {"a": "c"}], {"a": "b c"}, False, [], False),
        ]
        for test in tests:
            result = stack_dicts(test[0], test[2], test[3], test[4])
            self.assertNotEqual(result, test[1])