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51 lines
1.8 KiB
51 lines
1.8 KiB
require 'ruby_intro.rb'
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describe "BookInStock" do
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it "should be defined" do
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expect { BookInStock }.not_to raise_error
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end
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describe 'getters and setters' do
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before(:each) { @book = BookInStock.new('isbn1', 33.8) }
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it 'should set ISBN [10 points]' , points: 10 do
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expect(@book.isbn).to eq('isbn1')
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end
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it 'should set price [10 points]' , points: 10 do
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expect(@book.price).to eq(33.8)
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end
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it 'should be able to change ISBN [10 points]' , points: 10 do
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@book.isbn = 'isbn2'
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expect(@book.isbn).to eq('isbn2')
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end
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it 'should be able to change price [10 points]' , points: 10 do
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@book.price = 300.0
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expect(@book.price).to eq(300.0)
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end
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end
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describe 'constructor' do
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it 'should reject invalid ISBN number [10 points]' , points: 10 do
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expect { BookInStock.new('', 25.00) }.to raise_error(ArgumentError)
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end
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it 'should reject zero price [10 points]' , points: 10 do
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expect { BookInStock.new('isbn1', 0) }.to raise_error(ArgumentError)
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end
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it 'should reject negative price [10 points]' , points: 10 do
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expect { BookInStock.new('isbn1', -5.0) }.to raise_error(ArgumentError)
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end
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end
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describe "#price_as_string" do
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it "should be defined" do
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expect(BookInStock.new('isbn1', 10)).to respond_to(:price_as_string)
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end
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it 'should display 33.95 as "$33.95" [10 points]' , points: 10 do
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expect(BookInStock.new('isbn11', 33.95).price_as_string).to eq('$33.95')
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end
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it "should display 1.1 as $1.10 [10 points]" , points: 10 do
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expect(BookInStock.new('isbn11', 1.1).price_as_string).to eq('$1.10')
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end
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it "should display 20 as $20.00 [10 points]" , points: 10 do
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expect(BookInStock.new('isbn11', 20).price_as_string).to eq('$20.00')
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end
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end
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end
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