## Make sure that Array#uniq works

require 'test/unit'

# A BasicObject that can be used as a Hash key
class BasicWrap < BasicObject
  attr_reader :x

  def initialize(x)
    @x = x
  end

  def ==(rhs)
    @x == rhs.x
  end
  alias_method :eql?, :==

  def hash
    @x.hash
  end
end

class TestUniq < Test::Unit::TestCase
  def test_uniq_with_fixnum
    a = [3, 2, 1, 4, 1, 2, 3]
    assert(a.uniq == [3, 2, 1, 4])
  end

  def test_uniq_with_struct
    s = Struct.new(:x)
    a = [s.new(3), s.new(2), s.new(1), s.new(4), s.new(1), s.new(2), s.new(3)]
    assert(a.uniq == [s.new(3), s.new(2), s.new(1), s.new(4)])
  end

  def test_uniq_with_basic
    s = BasicWrap
    a = [s.new(3), s.new(2), s.new(1), s.new(4), s.new(1), s.new(2), s.new(3)]
    assert(a.uniq == [s.new(3), s.new(2), s.new(1), s.new(4)])
  end
end

jruby 9.0.1.0-SNAPSHOT (2.2.2) 2015-08-05 ce91559 Java HotSpot(TM) 64-Bit Server VM 25.40-b25 on 1.8.0_40-b26 +jit [darwin-x86_64]

3 tests, 3 assertions, 1 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
66.6667% passed

ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-darwin13.0]

3 tests, 3 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
100% passed