require_relative '../../spec_helper'
require_relative 'fixtures/classes'

ruby_version_is "3.2" do
  describe "Enumerable#to_set" do
    it "returns a new Set created from self" do
      [1, 2, 3].to_set.should == Set[1, 2, 3]
      {a: 1, b: 2}.to_set.should == Set[[:b, 2], [:a, 1]]
    end

    it "passes down passed blocks" do
      [1, 2, 3].to_set { |x| x * x }.should == Set[1, 4, 9]
    end

    it "instantiates an object of provided as the first argument set class" do
      set = [1, 2, 3].to_set(EnumerableSpecs::SetSubclass)
      set.should be_kind_of(EnumerableSpecs::SetSubclass)
      set.to_a.sort.should == [1, 2, 3]
    end

    it "does not need explicit `require 'set'`" do
      output = ruby_exe(<<~RUBY, options: '--disable-gems', args: '2>&1')
        puts [1, 2, 3].to_set
      RUBY

      output.chomp.should == "#<Set: {1, 2, 3}>"
    end
  end
end