require 'assert'
require 'assert/assertions'

require 'assert/utils'

module Assert::Assertions

  class AssertInstanceOfTests < Assert::Context
    desc "the assert_instance_of helper"
    setup do
      desc = @desc = "assert instance of fail desc"
      args = @args = [ Array, "object", desc ]
      @test = Factory.test do
        assert_instance_of(String, "object") # pass
        assert_instance_of(*args)            # fail
      end
      @test.run
    end
    subject{ @test }

    should "produce results as expected" do
      assert_equal 2, subject.result_count
      assert_equal 1, subject.result_count(:pass)
      assert_equal 1, subject.result_count(:fail)
    end

    should "have a fail message with custom and generic explanations" do
      exp = "#{@args[2]}\nExpected #{Assert::U.show(@args[1])} (#{@args[1].class}) to"\
            " be an instance of #{@args[0]}."
      assert_equal exp, subject.fail_results.first.message
    end

  end

  class AssertNotInstanceOfTests < Assert::Context
    desc "the assert_not_instance_of helper"
    setup do
      desc = @desc = "assert not instance of fail desc"
      args = @args = [ String, "object", desc ]
      @test = Factory.test do
        assert_not_instance_of(*args)           # fail
        assert_not_instance_of(Array, "object") # pass
      end
      @test.run
    end
    subject{ @test }

    should "produce results as expected" do
      assert_equal 2, subject.result_count
      assert_equal 1, subject.result_count(:pass)
      assert_equal 1, subject.result_count(:fail)
    end

    should "have a fail message with custom and generic explanations" do
      exp = "#{@args[2]}\n#{Assert::U.show(@args[1])} (#{@args[1].class}) not expected to"\
            " be an instance of #{@args[0]}."
      assert_equal exp, subject.fail_results.first.message
    end

  end

end