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# Licensed to the Apache Software Foundation (ASF) under one

# or more contributor license agreements. See the NOTICE file

# distributed with this work for additional information

# regarding copyright ownership. The ASF licenses this file

# to you under the Apache License, Version 2.0 (the

# "License"); you may not use this file except in compliance

# with the License. You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing,

# software distributed under the License is distributed on an

# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

# KIND, either express or implied. See the License for the

# specific language governing permissions and limitations

# under the License.

import datafusion

import datafusion.functions

import datafusion.object_store

import datafusion.substrait

import pytest

# EnumType introduced in 3.11. 3.10 and prior it was called EnumMeta.

try:

from enum import EnumType

except ImportError:

from enum import EnumMeta as EnumType

def missing_exports(internal_obj, wrapped_obj) -> None:

"""

Identify if any of the rust exposted structs or functions do not have wrappers.

Special handling for:

- Raw* classes: Internal implementation details that shouldn't be exposed

- _global_ctx: Internal implementation detail

- __self__, __class__: Python special attributes

"""

# Special case enums - EnumType overrides a some of the internal functions,

# so check all of the values exist and move on

if isinstance(wrapped_obj, EnumType):

expected_values = [v for v in dir(internal_obj) if not v.startswith("__")]

for value in expected_values:

assert value in dir(wrapped_obj)

return

for internal_attr_name in dir(internal_obj):

wrapped_attr_name = internal_attr_name.removeprefix("Raw")

assert wrapped_attr_name in dir(wrapped_obj)

internal_attr = getattr(internal_obj, internal_attr_name)

wrapped_attr = getattr(wrapped_obj, wrapped_attr_name)

# There are some auto generated attributes that can be None, such as

# __kwdefaults__ and __doc__. As long as these are None on the internal

# object, it's okay to skip them. However if they do exist on the internal

# object they must also exist on the wrapped object.

if internal_attr is not None and wrapped_attr is None:

pytest.fail(f"Missing attribute: {internal_attr_name}")

if internal_attr_name in ["__self__", "__class__"]:

continue

if isinstance(internal_attr, list):

assert isinstance(wrapped_attr, list)

# We have cases like __all__ that are a list and we want to be certain that

# every value in the list in the internal object is also in the wrapper list

for val in internal_attr:

if isinstance(val, str) and val.startswith("Raw"):

assert val[3:] in wrapped_attr

else:

assert val in wrapped_attr

elif hasattr(internal_attr, "__dict__"):

# Check all submodules recursively

missing_exports(internal_attr, wrapped_attr)

def test_datafusion_missing_exports() -> None:

"""Check for any missing python exports.

This test verifies that every exposed class, attribute,

and function in the internal (pyo3) module - datafusion._internal

is also exposed in our python wrappers - datafusion -

i.e., the ones exposed to the public.

"""

missing_exports(datafusion._internal, datafusion)