Method test_mock_open

Lib/test/test_unittest/testmock/testwith.py:144–150

(self)

class TestMockOpen(unittest.TestCase):

    def test_mock_open(self):
        mock = mock_open()
        with patch('%s.open' % __name__, mock, create=True) as patched:
            self.assertIs(patched, mock)
            open('foo')

        mock.assert_called_once_with('foo')


    def test_mock_open_context_manager(self):