Add cucumber steps and feature for animal

animal.rb

@@ -10,6 +10,6 @@ def initialize(name, type, age)
   end
 
   def old?
-    age > 3
+    @age > 3
   end
 end

features/animal.feature

@@ -1 +1,12 @@
-#Create your feature here
+Feature: Animal
+  In order to properly track animals
+  An animal must have a name, type and age
+  And can determine if it's old
+
+  Scenario: Bear
+    Given a 3 year old Bear named Charles
+    Then it should have the name Charles
+    And have the species be Bear
+    And be 3 years old
+    And is not old
+

features/greeter.feature

@@ -1,10 +1,10 @@
 Feature: Greeter
   In order to properly address senior animals
-  As a old cat
+  As an old cat
   I want to be greeted as 'Mr Cat'
 
   Scenario: Cat
-    Given a animal
+    Given an animal
     When older than 3
     And I verify it is a "cat"
     Then I should see "Mr Cat"

features/step_definitions/animal_steps.rb

@@ -1 +1,19 @@
-#Delete this comment, here is where you should write your step defs
+Given(/^a (\d+) year old (.*?) named (.*?)$/) do |age, species, name|
+  @bear = Animal.new(name, species, age.to_i)
+end
+
+Then(/^it should have the name (.*?)$/) do |name|
+  expect(@bear.name).to eq name
+end
+
+And(/^have the species be (.*?)$/) do |species|
+  expect(@bear.type).to eq species
+end
+
+And(/^be (\d+) years old$/) do |arg1|
+  expect(@bear.age).to eq arg1.to_i
+end
+
+And(/^is not old$/) do
+  expect(@bear.old?).to be false
+end

features/step_definitions/greeter_steps.rb

@@ -1,4 +1,4 @@
-Given(/^a animal$/) do
+Given(/^an animal$/) do
   @animal = Animal.new('Lucy', 'cat', 4)
 end