File: test_upgrader_codegen.py

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# Owner(s): ["oncall: mobile"]

import os
import tempfile
from pathlib import Path

from torch.jit.generate_bytecode import generate_upgraders_bytecode
from torch.testing._internal.common_utils import run_tests, TestCase
from torchgen.operator_versions.gen_mobile_upgraders import sort_upgrader, write_cpp


pytorch_caffe2_dir = Path(__file__).resolve().parents[2]


class TestLiteScriptModule(TestCase):
    def test_generate_bytecode(self):
        upgrader_list = generate_upgraders_bytecode()
        sorted_upgrader_list = sort_upgrader(upgrader_list)
        upgrader_mobile_cpp_path = (
            pytorch_caffe2_dir
            / "torch"
            / "csrc"
            / "jit"
            / "mobile"
            / "upgrader_mobile.cpp"
        )
        with tempfile.TemporaryDirectory() as tmpdirname:
            write_cpp(tmpdirname, sorted_upgrader_list)
            with open(os.path.join(tmpdirname, "upgrader_mobile.cpp")) as file_name:
                actual_output = [line.strip() for line in file_name if line]
            with open(str(upgrader_mobile_cpp_path)) as file_name:
                expect_output = [line.strip() for line in file_name if line]
            actual_output_filtered = list(
                filter(lambda token: len(token) != 0, actual_output)
            )
            expect_output_filtered = list(
                filter(lambda token: len(token) != 0, expect_output)
            )

            self.assertEqual(actual_output_filtered, expect_output_filtered)


if __name__ == "__main__":
    run_tests()