Adrianna Gilmore | CS 362 | Final Exam Part 2

lib/vessel.rb

@@ -1,9 +1,18 @@
 class Vessel
- attr_reader :volume
+ attr_reader :volume, :name, :empty
 
- def initialize(name, volume)
+ def initialize(name = "FAKE", volume = 100)
  @name = name
  @volume = volume
+ @empty = true
+ end
+
+ def empty?
+ @empty
+ end
+
+ def fill
+ @empty = false
  end
 
 end

lib/water_reservoir.rb

@@ -17,7 +17,9 @@ def fill
  end
 
  def drain(volume)
- self.current_water_volume -= volume
+ if current_water_volume > 0
+ self.current_water_volume -= volume
+ end
  end
 
 end

spec/item_spec.rb

@@ -1,5 +1,18 @@
 require_relative '../lib/item'
 
 describe 'An item of food or a beverage' do
+ item = Item.new("Fake", 100)
+
+ it 'exists' do
+ Item.new("Fake", 100)
+ end
+
+ it 'has a name' do
+ expect(item).to respond_to(:name)
+ end
+
+ it 'has a volume' do
+ expect(item).to respond_to(:volume)
+ end
 
 end

spec/vessel_spec.rb

@@ -9,13 +9,11 @@
  end
 
  it 'is initially empty' do
- skip
  vessel = Vessel.new('FAKE', 100)
  expect(vessel).to be_empty
  end
 
  it 'is no longer empty when we fill it' do
- skip
  vessel = Vessel.new('FAKE', 100)
  vessel.fill
  expect(vessel).to_not be_empty

spec/water_dispenser_spec.rb

@@ -1,5 +1,14 @@
 require_relative '../lib/water_dispenser'
 
 describe 'A water dispenser' do
+ water_dispenser = WaterDispenser.new("FAKE")
+
+ it 'exists' do
+ WaterDispenser.new("FAKE")
+ end
+
+ it 'has a reservoir' do
+ expect(water_dispenser).to respond_to(:reservoir)
+ end
 
 end

spec/water_reservoir_spec.rb

@@ -1,5 +1,25 @@
 require_relative '../lib/water_reservoir'
 
 describe 'A water reservoir' do
+ water_reservoir = WaterReservoir.new
 
+ it 'exists' do
+ WaterReservoir.new
+ end
+
+ it 'has a capacity' do
+ expect(water_reservoir).to respond_to(:capacity)
+ end
+
+ it 'has a current_water_volume' do
+ expect(water_reservoir).to respond_to(:current_water_volume)
+ end
+
+ it 'expects current_water_volume to be initialized to empty' do
+ expect(water_reservoir).to be_empty
+ end
+
+ it 'expects fill to return the capacity' do
+ expect(water_reservoir.fill).to eq(10)
+ end
 end