Completed Daily Challenge - Caffeine

.travis.yml

@@ -0,0 +1,7 @@
+language: ruby
+rvm:
+  - 2.2.2
+
+script: caffeine_test.rb
+script: coffee.rb
+script: human.rb

caffeine_tests.rb

@@ -22,7 +22,7 @@ def test_humans_can_drink_coffee
 
     mallory.buy tsmf
     mallory.drink!
-    assert_within_epsilon mallory.alertness, 0.33, 0.1
+    assert_in_epsilon mallory.alertness, 0.33, 0.1
     refute tsmf.full?
     refute tsmf.empty?
   end

coffee.rb

@@ -1,3 +1,20 @@
 class Coffee
-  # Add code here
+
+  def initialize(type)
+  	@full = true
+  	@sips = 3
+  end
+
+  def full?
+  	@sips == 3
+  end
+
+  def take_sip
+  	@sips -= 1
+  end
+
+  def empty?
+  	@sips.zero?
+  end
+
 end

human.rb

@@ -1,3 +1,30 @@
 class Human
-  # Add code here
+
+  attr_reader :alertness
+
+  def initialize(name)
+  	@alertness = 0
+  end
+
+  def buy coffee
+  	@my_coffee = coffee
+  end
+
+  def drink!
+  	@alertness += 0.33
+  	@my_coffee.take_sip
+  end
+
+  def has_coffee?
+  	if @my_coffee.nil?
+  		false
+  	else
+  		true
+  	end
+  end
+
+  def needs_coffee?
+  	not has_coffee?
+  end
+
 end