[jira] [Created] (BEAM-155) Support asserting the contents of windows and panes in PAssert

["Thomas Groh (JIRA)" <ji...@apache.org>]

Thomas Groh created BEAM-155:
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             Summary: Support asserting the contents of windows and panes in PAssert
                 Key: BEAM-155
                 URL: https://issues.apache.org/jira/browse/BEAM-155
             Project: Beam
          Issue Type: Improvement
          Components: sdk-java-core
            Reporter: Thomas Groh
            Assignee: Davor Bonaci


This consists of reifying the output windows and panes, and running asserts per-window about the contents of panes.

This includes aggregated matching and final pane matching, e.g.

PAssert.that(output).byOnTimePane().hasOutputElements(foo, bar);

// For discarding mode - could have emitted (say) [spam, eggs], [spam], [], [sausage], []
PAssert.that(output).byFinalPane().hasOutputElements(spam, eggs, sausage, spam);
// For accumulating mode without late data
PAssert.that(output).finalPane().containsInAnyOrder(spam, eggs, sausage, spam);

// For accumulating mode with late data
PAssert.that(output).finalPane().containsInAnyOrder(foo, bar).mayAlsoContain(baz, rab);

See also: https://docs.google.com/document/d/1fZUUbG2LxBtqCVabQshldXIhkMcXepsbv2vuuny8Ix4/edit#



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