mozjs_sys 0.67.1

System crate for the Mozilla SpiderMonkey JavaScript engine.
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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

from __future__ import absolute_import, print_function, unicode_literals

import unittest
import mozunit
from taskgraph.util.templates import (
    merge_to,
    merge
)


class MergeTest(unittest.TestCase):

    def test_merge_to_dicts(self):
        source = {'a': 1, 'b': 2}
        dest = {'b': '20', 'c': 30}
        expected = {
            'a': 1,   # source only
            'b': 2,   # source overrides dest
            'c': 30,  # dest only
        }
        self.assertEqual(merge_to(source, dest), expected)
        self.assertEqual(dest, expected)

    def test_merge_to_lists(self):
        source = {'x': [3, 4]}
        dest = {'x': [1, 2]}
        expected = {'x': [1, 2, 3, 4]}  # dest first
        self.assertEqual(merge_to(source, dest), expected)
        self.assertEqual(dest, expected)

    def test_merge_diff_types(self):
        source = {'x': [1, 2]}
        dest = {'x': 'abc'}
        expected = {'x': [1, 2]}  # source wins
        self.assertEqual(merge_to(source, dest), expected)
        self.assertEqual(dest, expected)

    def test_merge(self):
        first = {'a': 1, 'b': 2, 'd': 11}
        second = {'b': 20, 'c': 30}
        third = {'c': 300, 'd': 400}
        expected = {
            'a': 1,
            'b': 20,
            'c': 300,
            'd': 400,
        }
        self.assertEqual(merge(first, second, third), expected)

        # inputs haven't changed..
        self.assertEqual(first, {'a': 1, 'b': 2, 'd': 11})
        self.assertEqual(second, {'b': 20, 'c': 30})
        self.assertEqual(third, {'c': 300, 'd': 400})


if __name__ == '__main__':
    mozunit.main()