test/trace_processor/diff_tests/stdlib/tests.py

#!/usr/bin/env python3
# Copyright (C) 2023 The Android Open Source Project
#
# Licensed 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
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from python.generators.diff_tests.testing import Path, DataPath, Metric
from python.generators.diff_tests.testing import Csv, Json, TextProto
from python.generators.diff_tests.testing import DiffTestBlueprint
from python.generators.diff_tests.testing import TestSuite


# Smoke tests for the entire stdlib. These tests load a trace and then import the entire stdlib to check that it's well-formed.
class StdlibSmoke(TestSuite):

  def test_empty_file(self):
    return DiffTestBlueprint(
        trace=TextProto(''),
        query="""
        INCLUDE PERFETTO MODULE *;

        SELECT 1 as result;
        """,
        out=Csv("""
        "result"
        1
        """))