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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 pytest

from datafusion import ExecutionPlan, LogicalPlan, SessionContext

# Note: We must use CSV because memory tables are currently not supported for

# conversion to/from protobuf.

@pytest.fixture

def df():

ctx = SessionContext()

return ctx.read_csv(path="testing/data/csv/aggregate_test_100.csv").select("c1")

def test_logical_plan_to_proto(ctx, df) -> None:

logical_plan_bytes = df.logical_plan().to_proto()

logical_plan = LogicalPlan.from_proto(ctx, logical_plan_bytes)

df_round_trip = ctx.create_dataframe_from_logical_plan(logical_plan)

assert df.collect() == df_round_trip.collect()

original_execution_plan = df.execution_plan()

execution_plan_bytes = original_execution_plan.to_proto()

execution_plan = ExecutionPlan.from_proto(ctx, execution_plan_bytes)

assert str(original_execution_plan) == str(execution_plan)