Page 0: Page 1: BDD with rspec & Cucumber deepblue @ springnote Page 2:     http://toby.epril.com/?p=500 Page 3: http://www.flickr.com/photos/xollob58/528204122/ Page 4:  Page 5:    Page 6:    Registration register() registrations . Page 7:      Page 8:  Page 9: Page 10: Page 11: Page 12:    Page 13: 기능              Page 14:                            Page 15: Page 16: Given /^ end Given /^ end When /^ end Then /^ end Then /^ end Add 50 70 $/ do $/ do $/ do 120 Fixnum $/ do $/ do Page 17: Page 18: require 'spec/expectations' $:.unshift(File.dirname(__FILE__) + '/../../lib') require 'cucumber/formatters/unicode' require 'calculator' Before do @calc = Calculator.new end Page 19: Page 20: class Calculator end Page 21: Given /^계산기에 (\d+)을 입력했다$/ do |n| @calc.push n.to_i end Page 22: Page 23: class Calculator def push(n) end end Page 24: When /^내가 (\w+) 버튼을 누른다$/ do |cmd| @calc.send cmd.downcase.to_sym end Page 25: Page 26: class Calculator def push(n) end def add end end Page 27: Then /^화면에 숫자 (\d+)이 출력될 것이다$/ do |n| @calc.last_result.should == n.to_i end Then /^출력된 값은 (\w+)이다$/ do |name| @calc.last_result.class.name.should == name end Page 28: Page 29: class Calculator attr_reader :last_result def push(n) end def add end end Page 30: Page 31:         Page 32:    Page 33: $:.unshift(File.dirname(__FILE__) + '/../lib') require 'calculator' describe Calculator do before do @calc = Calculator.new end it "처음에는 stack이 비어있다" do @calc.stack.should be_empty end end Page 34: Page 35: class Calculator attr_reader :last_result, :stack def initialize @stack = [] end def push(n) end def add end end Page 36: Page 37: it "stack에 숫자를 추가한다" do @calc.push(1) @calc.stack.last.should == 1 end Page 38: Page 39: class Calculator attr_reader :last_result, :stack def initialize @stack = [] end def push(n) @stack.push(n) end def add end end Page 40: it "숫자 2개를 더해서 last_result에 저장한다" do @calc.should_receive(:top).with(2).and_return [3,4] @calc.add @cals.last_result.should == 3+4 end Page 41: Page 42: class Calculator attr_reader :last_result, :stack def initialize @stack = [] end def push(n) @stack.push(n) end def add @last_result = end end top(2).inject{|sum, n| sum + n} Page 43: it "stack의 숫자 2개를 반환한다" do @calc.should_receive(:stack).and_return [1,2,3,4] @calc.top(2).should == [3,4] end Page 44: Page 45: class Calculator attr_reader :last_result, :stack def initialize @stack = [] end def push(n) @stack.push(n) end def top(n) stack.slice!(-n, n) end def add @last_result = top(2).inject{|sum, n| sum + n} end end Page 46: Page 47: Page 48: : . : 3 2 Divide 1.5 Float Page 49: Then /^화면에 숫자 ([.\d]+)(이|가) 출력될 것이다$/ do |n,_| @calc.last_result.to_f.should == n.to_f end Page 50: Page 51: class Calculator attr_reader :last_result, :stack def initialize @stack = [] end def push(n) @stack.push(n) end def top(n) stack.slice!(-2, 2) end def add @last_result = top(2).inject{|sum, n| sum + n} end def divide end end Page 52: Page 53: it "숫자 2개를 나눠서 last_result에 저장한다" do @calc.should_receive(:top).with(2).and_return [3,2] @calc.divide @calc.last_result.should == 3.0/2.0 end Page 54: Page 55: class Calculator attr_reader :last_result, :stack def initialize @stack = [] end def push(n) @stack.push(n) end def top(n) stack.slice!(-2, 2) end def add @last_result = top(2).inject{|sum, n| sum + n} end def divide n1, n2 = top(2) @last_result = n1.to_f / n2.to_f end end Page 56: Page 57: Page 58:   Page 59: Page 60: Page 61: Page 62: