From: "trans (Thomas Sawyer)" <transfire@...>
Date: 2012-05-15T08:45:05+09:00
Subject: [ruby-core:45047] [ruby-trunk - Bug #6425] Psych issue with !!omap


Issue #6425 has been updated by trans (Thomas Sawyer).


=begin

Ah, the indention I added was the problem. Try:

  a = YAML.load %{
  --- !!omap
  a: 1
  b: 2
  }
  a.class
  a.to_yaml

As for a test case. Something like?

  class TestYAMLOMap < Test::Unit::TestCase
    def test_omap_round_trip
      a = YAML.load "--- !!omap\n"a: 1\nb: 2\n"
      s = a.to_yaml
      assert s.index('!!omap')
    end
  end

Okay, it could be better, but it's a start.
=end

----------------------------------------
Bug #6425: Psych issue with !!omap
https://bugs.ruby-lang.org/issues/6425#change-26629

Author: trans (Thomas Sawyer)
Status: Open
Priority: Normal
Assignee: 
Category: lib
Target version: 
ruby -v: ruby 1.9.3p125 (2012-02-16 revision 34643) [x86_64-linux]


=begin

Psych doesn't seem to know ordered map. It parses fine, but loose the type when round-tripped.

  a = YAML.load %{
    --- !!omap
    a: 1
    b: 2
  }
  => {"a"=>1, "b"=>2}
  a.class
  => Hash
  puts a.to_yaml
  ---
  a: 1
  b: 2

=end



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