[AVRO-1460] Perl API doesn't raise warning/error when encoding record with spurious fields

• Type: Improvement
• Status: Patch Available
• Priority: Minor
• Resolution: Unresolved
• Fix Version/s: 1.9.0
• Component/s: perl
• Release Note: Perl API: Raise error when serializing record field not included in schema
• Tags: perl
• Assignee: John Karp
• Reporter: John Karp
• Created: 20/Feb/14 20:19
• Updated: 24/Oct/19 08:25

Description

When serializing a record with a field that isn't specified in the schema, there should be some sort of warning or error. Otherwise, a simple typo in a field name can lead to silent loss of that field's data.

Test case that should pass but currently fails:

{
    my $schema = Avro::Schema->parse(<<EOJ);
          {
          "type": "record",
          "name": "test",
          "fields" : [
          {"name": "a", "type": "long"}
          ]
          }
EOJ
    my $enc = '';
    eval {
        Avro::BinaryEncoder->encode(
            schema => $schema,
            data => { a => 27, b => 'foo' },
            emit_cb => sub { $enc .= ${ $_[0] } },
        );
    };
    isa_ok $@, 'Avro::BinaryEncoder::Error';
}