How to use dictdiffer - 10 common examples

def test_init(self):
        p1 = ('add', '', [(0, 0)])
        p2 = ('add', '', [(1, 2)])

        c = Conflict(p1, p2)

        self.assertEqual(c.first_patch, p1)
        self.assertEqual(c.second_patch, p2)
        self.assertEqual(c.take, None)

def test_init(self):
        # Very basic
        r = Resolver({})

        self.assertEqual(r.actions, {})
        self.assertEqual(r.additional_info, None)
        self.assertEqual(r.unresolved_conflicts, [])

        # With additional_info
        r = Resolver({}, {})

        self.assertEqual(r.actions, {})
        self.assertEqual(r.additional_info, {})
        self.assertEqual(r.unresolved_conflicts, [])

def test_path_limit_addition(self):
        first = {}
        second = {'author': {'last_name': 'Doe', 'first_name': 'John'}}
        p = PathLimit([('author',)])
        diffed = list(diff(first, second, path_limit=p))

        res = [('add', '', [('author',
                             {'first_name': 'John', 'last_name': 'Doe'})])]

        assert res == diffed

        first = {}
        second = {'author': {'last_name': 'Doe', 'first_name': 'John'}}
        p = PathLimit([('author',)])
        diffed = list(diff(first, second, path_limit=p, expand=True))

        res = [('add', '', [('author',
                             {'first_name': 'John', 'last_name': 'Doe'})])]

        assert res == diffed

        first = {}
        second = {'author': {'last_name': 'Doe', 'first_name': 'John'}}
        p = PathLimit()
        diffed = list(diff(first, second, path_limit=p, expand=True))
        res = [('add', '', [('author', {})]),
               ('add', 'author', [('first_name', 'John')]),
               ('add', 'author', [('last_name', 'Doe')])]

        assert len(diffed) == 3

def test_path_limit_change(self):
        first = {'author': {'last_name': 'Do', 'first_name': 'John'}}
        second = {'author': {'last_name': 'Doe', 'first_name': 'John'}}
        p = PathLimit([('author',)])
        diffed = list(diff(first, second, path_limit=p, expand=True))

        res = [('change',
                ['author'],
                ({'first_name': 'John', 'last_name': 'Do'},
                 {'first_name': 'John', 'last_name': 'Doe'}))]

        assert res == diffed

        first = {'author': {'last_name': 'Do', 'first_name': 'John'}}
        second = {'author': {'last_name': 'Doe', 'first_name': 'John'}}
        p = PathLimit()
        diffed = list(diff(first, second, path_limit=p, expand=True))

        res = [('change', 'author.last_name', ('Do', 'Doe'))]

def test_pathlimit(self):
        path_limit = PathLimit([('author', 'name')])
        self.assertFalse(path_limit.path_is_limit(('author')))
        self.assertTrue(path_limit.path_is_limit(('author', 'name')))
        self.assertFalse(path_limit.path_is_limit(('author', 'name', 'foo')))

        path_limit = PathLimit([('authors', '*')])
        self.assertFalse(path_limit.path_is_limit(('authors')))
        self.assertTrue(path_limit.path_is_limit(('authors', 'name')))
        self.assertTrue(path_limit.path_is_limit(('authors', 1)))
        self.assertTrue(path_limit.path_is_limit(('authors', 2)))
        self.assertFalse(path_limit.path_is_limit(('authors', 'name', 'foo')))

def test_path_limit_deletion(self):
        first = {'author': {'last_name': 'Doe', 'first_name': 'John'}}
        second = {}
        p = PathLimit([('author',)])
        diffed = list(diff(first, second, path_limit=p, expand=True))

        res = [('remove', '', [('author',
                                {'first_name': 'John', 'last_name': 'Doe'})])]

        assert res == diffed

def test_change_set_order(self):
        first = set(["changeA", "changeC", "changeB"])
        second = set(["changeB", "changeC", "changeA"])
        diffed = list(diff(first, second))
        # There should be zero reported diffs
        assert len(diffed) == 0

def test_expand_addition(self):
        first = {}
        second = {'foo': 'bar', 'apple': 'banana'}
        diffed = list(diff(first, second, expand=True))
        res = [('add', '', [('foo', 'bar')]),
               ('add', '', [('apple', 'banana')])]

        assert len(diffed) == 2
        for patch in res:
            assert patch in diffed

def test_ignore_with_ignorecase(self):
        class IgnoreCase(set):
            def __contains__(self, key):
                return set.__contains__(self, str(key).lower())

        assert list(diff({'a': 1, 'b': 2}, {'A': 3, 'b': 4},
                         ignore=IgnoreCase('a'))) == [('change', 'b', (2, 4))]

def test_nodes(self):
        first = {'a': {'b': {'c': 'd'}}}
        second = {'a': {'b': {'c': 'd', 'e': 'f'}}}
        diffed = next(diff(first, second))
        assert ('add', 'a.b', [('e', 'f')]) == diffed