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require "spec_helper"
describe Cart do
let(:sut) { Cart.new }
let(:crayons) { fake }
let(:phone) { fake }
let(:laptop) { fake }
before :each do
crayons.stub(:price).and_return(Money.new(1.99))
phone.stub(:price).and_return(Money.new(199.99))
laptop.stub(:price).and_return(Money.new(1999.99))
end
context "when there are no items in the cart" do
it "should indicate that no items are included" do
sut.includes?(crayons).should be_false
end
it "should indicate that there are no items in the cart" do
sut.total_items.should == 0
end
it "should calculate a total price of $0.00" do
sut.total_price.should == Money.new(0.00)
end
end
context "when there is a single item in the cart" do
before { sut.add(crayons) }
it "should increase the quanity of that product" do
sut.quantity_of(crayons).should == 1
end
it "should indicate the total number of unique items in the cart" do
sut.total_items.should == 1
end
it "should calculate a total price" do
sut.total_price.should == crayons.price
end
end
context "when there are multiples of a single product" do
before :each do
sut.add(crayons)
sut.add(crayons)
end
it "should indicate the total quanity of that product" do
sut.quantity_of(crayons).should == 2
end
it "should indicate the total number of items in the cart" do
sut.total_items.should == 2
end
it "should calculate the total price" do
sut.total_price.should == crayons.price + crayons.price
end
end
context "when there is multiple products" do
before :each do
sut.add(crayons)
sut.add(phone)
sut.add(laptop)
end
it "should indicate the total number of items in the cart" do
sut.total_items.should == 3
end
it "should calculate the total price" do
sut.total_price.should == crayons.price + phone.price + laptop.price
end
end
end
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