[ARROW-4728] [JS] Failing test Table#assign with a zero-length Null column round-trips through serialization

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.12.1
• Fix Version/s: JS-0.4.1, 0.13.0
• Component/s: JavaScript
• Labels: ci-failure pull-request-available travis-ci
• External issue URL: https://github.com/apache/arrow/issues/21250
• Assignee: Paul Taylor
• Reporter: Francois Saint-Jacques
• Created: 01/Mar/19 16:54
• Updated: 11/Jan/23 07:35
• Resolved: 02/Mar/19 20:35

Description

See https://travis-ci.org/apache/arrow/jobs/500383002#L1022

  ● 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

Issue Links

• links to: GitHub Pull Request #3789