Robert Burke created BEAM-11085:
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Summary: [Go SDK] Windows are correctly observed in DoFns.
Key: BEAM-11085
URL: https://issues.apache.org/jira/browse/BEAM-11085
Project: Beam
Issue Type: Sub-task
Components: sdk-go
Reporter: Robert Burke
Add a simple unit test to validate that user DoFns can observe windows.
In particular add a Go unit test to the exec package, in the style of the ParDo
execution unit test
[https://github.com/apache/beam/blob/master/sdks/go/pkg/beam/core/runtime/exec/pardo_test.go#L50]
This requires writing a small but observable DoFn that observes windows, and
configures inputs to achieve expected outputs for given window assignements.
There may be a need to add a utility functions to configure the windows and
event times in a FullValue conveniently for the test.
Tests should cover single and multiple windows cases.
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