class TestBlah < MiniTest::Unit::TestCase
  def dumb_adder n
    (1..n).inject { |sum, n| sum + n }
  end

  def smart_adder n
    (n * n + n) / 2
  end

  def test_dumb_adder
    assert_equal     55, dumb_adder(10)
    assert_equal   5050, dumb_adder(100)
    assert_equal 500500, dumb_adder(1000)
  end

  def test_smart_adder
    assert_equal     55, smart_adder(10)
    assert_equal   5050, smart_adder(100)
    assert_equal 500500, smart_adder(1000)
  end

  bench_exp 10, 10_000

  def bench_dumb_adder n
    n.times do
      dumb_adder 100
    end
  end

  def bench_fast n
    n.times do
      smart_adder 100
    end
  end
end

# Loaded suite blah
# Started
# ..
# Finished in 0.001144 seconds.
#
# 2 tests, 6 assertions, 0 failures, 0 errors, 0 skips
#
# Test run options: --seed 40122
#
# # TestBlah benchmarks:
# Benchmark                    10       100      1000     10000
# bench_dumb_adder       0.000638  0.008971  0.077714  0.777714
# bench_fast             0.000012  0.000079  0.000751  0.007552