Tests failing with Ruby 3.0 and the sorted_set gem

[dleidert]

We are in the process of transitioning Debian Linux to Ruby 3.0. In this transition, we discovered that the tests are failing with issues like these:

Failures:

  1) Hamster.to_ruby with Hamster::Hash["a" => 1, "l" => Hamster::SortedSet[1, 2, 3], "h" => /ijk/, "e" => Hamster::Hash["f" => 8, "g" => 9], "d" => Hamster::Set[6, 5, 7], "b" => Hamster::Vector[2, Hamster::Hash["c" => 3], 4]] as input should return {"a"=>1, "b"=>[2, {"c"=>3}, 4], "d"=>#<Set: {5, 6, 7}>, "e"=>{"f"=>8, "g"=>9}, "h"=>/ijk/, "l"=>#<SortedSet: {1, 2, 3}>}
     Failure/Error: expect(Hamster.to_ruby(input)).to eql(expected_result)

       expected: {"a"=>1, "b"=>[2, {"c"=>3}, 4], "d"=>#<Set: {5, 6, 7}>, "e"=>{"f"=>8, "g"=>9}, "h"=>/ijk/, "l"=>#<SortedSet: {1, 2, 3}>}
            got: {"a"=>1, "b"=>[2, {"c"=>3}, 4], "d"=>#<Set: {6, 5, 7}>, "e"=>{"f"=>8, "g"=>9}, "h"=>/ijk/, "l"=>#<SortedSet: {1, 2, 3}>}

       (compared using eql?)

       Diff:
       @@ -1,6 +1,6 @@
        "a" => 1,
        "b" => [2, {"c"=>3}, 4],
       -"d" => #<Set: {5, 6, 7}>,
       +"d" => #<Set: {6, 5, 7}>,
        "e" => {"f"=>8, "g"=>9},
        "h" => /ijk/,
        "l" => #<SortedSet: {1, 2, 3}>,
     # ./spec/lib/hamster/nested/construction_spec.rb:69:in `block (5 levels) in <top (required)>'

  2) Hamster.to_ruby with Hamster::SortedSet[] as input should return #<SortedSet: {}>
     Failure/Error: expect(Hamster.to_ruby(input)).to eql(expected_result)

       expected: #<SortedSet: {}>
            got: #<SortedSet: {}>

       (compared using eql?)
     # ./spec/lib/hamster/nested/construction_spec.rb:69:in `block (5 levels) in <top (required)>'

  3) Hamster.to_ruby with Hamster::SortedSet[1, 2, 3] as input should return #<SortedSet: {1, 2, 3}>
     Failure/Error: expect(Hamster.to_ruby(input)).to eql(expected_result)

       expected: #<SortedSet: {1, 2, 3}>
            got: #<SortedSet: {1, 2, 3}>

       (compared using eql?)
     # ./spec/lib/hamster/nested/construction_spec.rb:69:in `block (5 levels) in <top (required)>'

Finished in 7.25 seconds (files took 0.911 seconds to load)
4595 examples, 3 failures, 1 pending

Failed examples:

rspec './spec/lib/hamster/nested/construction_spec.rb[1:2:1:1]' # Hamster.to_ruby with Hamster::Hash["a" => 1, "l" => Hamster::SortedSet[1, 2, 3], "h" => /ijk/, "e" => Hamster::Hash["f" => 8, "g" => 9], "d" => Hamster::Set[6, 5, 7], "b" => Hamster::Vector[2, Hamster::Hash["c" => 3], 4]] as input should return {"a"=>1, "b"=>[2, {"c"=>3}, 4], "d"=>#<Set: {5, 6, 7}>, "e"=>{"f"=>8, "g"=>9}, "h"=>/ijk/, "l"=>#<SortedSet: {1, 2, 3}>}
rspec './spec/lib/hamster/nested/construction_spec.rb[1:2:8:1]' # Hamster.to_ruby with Hamster::SortedSet[] as input should return #<SortedSet: {}>
rspec './spec/lib/hamster/nested/construction_spec.rb[1:2:9:1]' # Hamster.to_ruby with Hamster::SortedSet[1, 2, 3] as input should return #<SortedSet: {1, 2, 3}>

The cause seems to be this issue: knu/sorted_set#3

[alexdowad]

This has now been fixed on the core branch.