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require 'test/unit'
require '-test-/debug'

class TestDebug < Test::Unit::TestCase

  def binds_check(binds, msg = nil)
    count = Hash.new(0)
    assert_instance_of(Array, binds, msg)
    binds.each{|(_self, bind, klass, iseq, loc)|
      if _self == self
        count[:self] += 1
      end

      if bind
        assert_instance_of(Binding, bind, msg)
        count[:bind] += 1
      end

      if klass
        assert(klass.instance_of?(Module) || klass.instance_of?(Class), msg)
        count[:class] += 1
      end

      if iseq
        count[:iseq] += 1
        assert_instance_of(RubyVM::InstructionSequence, iseq, msg)

        # check same location
        assert_equal(loc.path, iseq.path, msg)
        assert_equal(loc.absolute_path, iseq.absolute_path, msg)
        assert_equal(loc.label, iseq.label, msg)
        assert_operator(loc.lineno, :>=, iseq.first_lineno, msg)
      end

      assert_instance_of(Thread::Backtrace::Location, loc, msg)

    }
    assert_operator(0, :<, count[:self], msg)
    assert_operator(0, :<, count[:bind], msg)
    assert_operator(0, :<, count[:iseq], msg)
    assert_operator(0, :<, count[:class], msg)
  end

  def test_inspector_open
    binds = Bug::Debug.inspector
    binds_check binds
  end

  def inspector_in_eval
    eval("Bug::Debug.inspector")
  end

  def test_inspector_open_in_eval
    bug7635 = '[ruby-core:51640]'
    binds = inspector_in_eval
    binds_check binds, bug7635
  end
end