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From "Francois Saint-Jacques (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ARROW-4728) [Javascript] Failing test Table#assign with a zero-length Null column round-trips through serialization
Date Fri, 01 Mar 2019 16:55:00 GMT
Francois Saint-Jacques created ARROW-4728:
---------------------------------------------

             Summary: [Javascript] Failing test Table#assign with a zero-length Null column
round-trips through serialization
                 Key: ARROW-4728
                 URL: https://issues.apache.org/jira/browse/ARROW-4728
             Project: Apache Arrow
          Issue Type: Bug
          Components: JavaScript
    Affects Versions: 0.12.1
            Reporter: Francois Saint-Jacques
             Fix For: 0.13.0


See https://travis-ci.org/apache/arrow/jobs/500414242#L1002
{code:javascript}
  ● Table#serialize() › Table#assign with an empty table round-trips through serialization
    expect(received).toBe(expected) // Object.is equality
    Expected: 86
    Received: 41
      91 |             const source = table1.assign(Table.empty());
      92 |             expect(source.numCols).toBe(table1.numCols);
    > 93 |             expect(source.length).toBe(table1.length);
         |                                   ^
      94 |             const result = Table.from(source.serialize());
      95 |             expect(result).toEqualTable(source);
      96 |             expect(result.schema.metadata.get('foo')).toEqual('bar');
      at Object.test (test/unit/table/serialize-tests.ts:93:35)
  ● Table#serialize() › Table#assign with a zero-length Null column round-trips through
serialization
    expect(received).toBe(expected) // Object.is equality
{code}




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