Added src directory

src/about_dice_project.rb

@@ -0,0 +1,64 @@
+require 'edgecase'
+
+class DiceSet
+  attr_reader :values
+  def roll(n)
+    @values = (1..n).map { rand(6) + 1 }
+  end
+end
+
+class AboutDiceSet < EdgeCase::Koan
+  def test_can_create_a_dice_set
+    dice = DiceSet.new
+    assert_not_nil dice
+  end
+
+  def test_rolling_the_dice_returns_a_set_of_integers_between_1_and_6
+    dice = DiceSet.new
+
+    dice.roll(5)
+    assert dice.values.is_a?(Array), "should be an array"
+    assert_equal 5, dice.values.size
+    dice.values.each do |value|
+      assert value >= 1 && value <= 6, "value #{value} must be between 1 and 6"
+    end
+  end
+
+  def test_dice_values_do_not_change_unless_explicitly_rolled
+    dice = DiceSet.new
+    dice.roll(5)
+    first_time = dice.values
+    second_time = dice.values
+    assert_equal first_time, second_time
+  end
+
+  def test_dice_values_should_change_between_rolls
+    dice = DiceSet.new
+
+    dice.roll(5)
+    first_time = dice.values
+
+    dice.roll(5)
+    second_time = dice.values
+
+    assert_not_equal first_time, second_time,
+      "Two rolls should not be equal"
+
+    # THINK ABOUT IT:
+    #
+    # If the rolls are random, then it is possible (although not
+    # likely) that two consecutive rolls are equal.  What would be a
+    # better way to test this.
+  end
+
+  def test_you_can_roll_different_numbers_of_dice
+    dice = DiceSet.new
+
+    dice.roll(3)
+    assert_equal 3, dice.values.size
+
+    dice.roll(1)
+    assert_equal 1, dice.values.size
+  end
+
+end