Method assert_called_once

Lib/unittest/mock.py:957–965

assert that the mock was called only once.

(self)

            raise AssertionError(msg)

    def assert_called_once(self):
        """assert that the mock was called only once.
        """
        if not self.call_count == 1:
            msg = ("Expected '%s' to have been called once. Called %s times.%s"
                   % (self._mock_name or 'mock',
                      self.call_count,
                      self._calls_repr()))
            raise AssertionError(msg)

    def assert_called_with(self, /, *args, **kwargs):
        """assert that the last call was made with the specified arguments.