import types
import six
import functools


def construct_new_test_function(original_func, name, build_params):
    """Builds a new test function based on parameterized data.

    :param original_func: The original test function that is used as a template
    :param name: The fullname of the new test function
    :param build_params: A dictionary or list containing args or kwargs
        for the new test
    :return: A new function object
    """
    new_func = types.FunctionType(
        six.get_function_code(original_func),
        six.get_function_globals(original_func),
        name=name,
        argdefs=six.get_function_defaults(original_func),
        closure=six.get_function_closure(original_func)
    )

    for key, val in original_func.__dict__.items():
        if key != 'build_data':
            new_func.__dict__[key] = val

    # Support either an arg list or kwarg dict for our data
    build_args = build_params if isinstance(build_params, list) else []
    build_kwargs = build_params if isinstance(build_params, dict) else {}

    # Build a test wrapper to execute with our kwargs
    def test_wrapper(func, test_args, test_kwargs):
        @functools.wraps(func)
        def wrapper(self):
            return func(self, *test_args, **test_kwargs)
        return wrapper

    return test_wrapper(new_func, build_args, build_kwargs)