def METHOD_NAME(self):
    """Test case for get_user_by_name
    Get user by user name
    """
    headers = { 
        'Accept': 'application/json',
    }
    response = self.client.open(
        '/v2/user/{username}'.format(username='username_example'),
        method='GET',
        headers=headers)
    self.assert200(response,
                   'Response body is : ' + response.data.decode('utf-8'))