Ben Chambers created BEAM-2577:
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Summary: IO tests should exercise Runtime Values where supported
Key: BEAM-2577
URL: https://issues.apache.org/jira/browse/BEAM-2577
Project: Beam
Issue Type: Bug
Components: sdk-java-extensions, testing
Reporter: Ben Chambers
Assignee: Davor Bonaci
The only tests I have found for `ValueProvider<?>` parameterized methods is
that they are not evaluated during pipeline construction time. This is missing
out on several important pieces:
1.
https://stackoverflow.com/questions/44967898/notify-when-textio-is-done-writing-a-file
seems to be a problem with an AvroIO write using a RuntimeValueProvider being
non-serializable (current theory is because of an anonymous inner class
capturing the enclosing AvroIO.Write instance which has non-serializable
fields).
2. Testing that the code paths that actually read the file do so correctly when
parameterized.
We should update the developer documentation to describe what the requirements
are for a parameterized IO and provide guidance on what tests are needed and
how to write them.
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