Source code for apache_beam.runners.direct.test_direct_runner

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"""Wrapper of Beam runners that's built for running and verifying e2e tests."""

from __future__ import absolute_import
from __future__ import print_function

from apache_beam.internal import pickler
from apache_beam.options.pipeline_options import StandardOptions
from apache_beam.options.pipeline_options import TestOptions
from apache_beam.runners.direct.direct_runner import DirectRunner
from apache_beam.runners.runner import PipelineState

__all__ = ['TestDirectRunner']


[docs]class TestDirectRunner(DirectRunner):
[docs] def run_pipeline(self, pipeline, options): """Execute test pipeline and verify test matcher""" test_options = options.view_as(TestOptions) on_success_matcher = test_options.on_success_matcher is_streaming = options.view_as(StandardOptions).streaming # [BEAM-1889] Do not send this to remote workers also, there is no need to # send this option to remote executors. test_options.on_success_matcher = None self.result = super(TestDirectRunner, self).run_pipeline(pipeline, options) try: if not is_streaming: self.result.wait_until_finish() if on_success_matcher: from hamcrest import assert_that as hc_assert_that hc_assert_that(self.result, pickler.loads(on_success_matcher)) finally: if not PipelineState.is_terminal(self.result.state): self.result.cancel() self.result.wait_until_finish() return self.result