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Update to panda/eagle/tiger

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1 parent 74ff0be commit 1928b701bc56227446b670598daefa9c6d22832c @jwo jwo committed May 6, 2012
Showing with 50 additions and 24 deletions.
  1. +14 −7 README.md
  2. +17 −3 zoo.rb
  3. +19 −14 zoo_spec.rb
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21 README.md
@@ -3,21 +3,28 @@ Episode 1 - Lions, Pandas and Zookeepers
An accurate simulation of zookeepers feeding Lions and Pandas
-Your Assignment
+Panda Level
---------------
1. Create a human that likes bacon and tacos, but not bamboo
2. (Using TDD [write tests first])
-Extra Credit
-------------
-
-1. Extract `Food` into a class, rather than a symbol
-2. Create a FoodBarge that can be called like:
+Tiger Level
+---------------
+1. Create a FoodBarge that can be called like:
+2. Test that when the zookeepers gets food for the panda,
+the panda will eat it
```
-food = @foodbarge.food_for(panda)
+food = foodbarge.food_for(panda)
panda.feed(food)
```
+Eagle Level
+----------
+
+1. Extract `Food` into a class, rather than a symbol
+2. Create separate Tacos, Wildebeests, etc classes for each food
+2. Rather than comparing Tacos.new, implement the `==` method so you can do `Tacos.new == Tacos.new`
+
Copyright: Jesse Wolgamott, MIT License (See LICENSE)
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20 zoo.rb
@@ -13,7 +13,7 @@ def eat(food)
end
def likes?(food)
- acceptable_food.include?(food.to_sym)
+ acceptable_food.include?(food)
end
def acceptable_food
@@ -31,7 +31,7 @@ class Panda
include Animal
def acceptable_food
- [:bamboo]
+ [Bamboo.new]
end
def full?
@@ -44,14 +44,28 @@ class Lion
include Animal
def acceptable_food
- [:wildebeests, :zeebras]
+ [Wildebeests.new, Zeebras.new]
end
def full?
@meals > 10
end
end
+
+class Food
+
+ def ==(other)
+ other.is_a? self.class
+ end
+
+end
+
+class Tacos < Food; end
+class Wildebeests < Food; end
+class Zeebras < Food; end
+class Bamboo < Food; end
+
class Zookeeper
def feed(args={})
food = args.fetch(:food)
View
33 zoo_spec.rb
@@ -2,61 +2,66 @@
require "./zoo"
require "rspec"
-describe Panda do
+class Grasshoppers < Food; end
+class Salad < Food; end
- it "should like bamboo" do
- Panda.new.likes?(:bamboo).should eq(true)
+describe Tacos do
+ it "should know all tacos are equal" do
+ (Tacos.new == Tacos.new).should be_true
end
+end
- it "should like bamboo as a string" do
- Panda.new.likes?("bamboo").should eq(true)
+describe Panda do
+
+ it "should like bamboo" do
+ Panda.new.likes?(Bamboo.new).should eq(true)
end
it "should not like grasshoppers" do
- Panda.new.likes?(:grasshoppers).should eq(false)
+ Panda.new.likes?(Grasshoppers.new).should eq(false)
end
it "should be able to eat the food" do
- Panda.new.eat(:bamboo).should be_true
+ Panda.new.eat(Bamboo.new).should be_true
end
it "should be full after eating 30 bamboo" do
panda = Panda.new
31.times do
- panda.eat(:bamboo)
+ panda.eat(Bamboo.new)
end
panda.should be_full
end
it "should not be full after 1" do
panda = Panda.new
- panda.eat(:bamboo)
+ panda.eat(Bamboo.new)
panda.should_not be_full
end
end
describe Lion do
it "should like wildebeests" do
- Lion.new.likes?(:wildebeests).should eq(true)
+ Lion.new.likes?(Wildebeests.new).should eq(true)
end
it "should like zeebras" do
- Lion.new.likes?(:zeebras).should eq(true)
+ Lion.new.likes?(Zeebras.new).should eq(true)
end
it "should not like salad" do
- Lion.new.likes?(:salad).should eq(false)
+ Lion.new.likes?(Salad.new).should eq(false)
end
it "should take 11 meals to be full" do
lion = Lion.new
- lion.eat(:zeebras)
+ lion.eat(Zeebras.new)
lion.should_not be_full
end
it "should take 11 meals to be full" do
lion = Lion.new
11.times do
- lion.eat(:zeebras)
+ lion.eat(Zeebras.new)
end
lion.should be_full
end

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