Source code for apache_beam.typehints.typehints_test_py3

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"""Unit tests for the type-hint objects and decorators with Python 3 syntax not
supported by 2.7."""

# pytype: skip-file

from __future__ import absolute_import
from __future__ import print_function

import unittest

from apache_beam.transforms.core import DoFn
from apache_beam.typehints import KV
from apache_beam.typehints import Iterable


[docs]class TestParDoAnnotations(unittest.TestCase):
[docs] def test_with_side_input(self): class MyDoFn(DoFn): def process(self, element: float, side_input: str) -> \ Iterable[KV[str, float]]: pass th = MyDoFn().get_type_hints() self.assertEqual(th.input_types, ((float, str), {})) self.assertEqual(th.output_types, ((KV[str, float], ), {}))
[docs] def test_pep484_annotations(self): class MyDoFn(DoFn): def process(self, element: int) -> Iterable[str]: pass print(MyDoFn().get_type_hints()) th = MyDoFn().get_type_hints() self.assertEqual(th.input_types, ((int, ), {})) self.assertEqual(th.output_types, ((str, ), {}))
if __name__ == '__main__': unittest.main()