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Решение на Трета задача от Виктор Хаджипопов

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Към профила на Виктор Хаджипопов

Резултати

  • 0 точки от тестове
  • 0 бонус точки
  • 0 точки общо
  • 0 успешни тест(а)
  • 19 неуспешни тест(а)

Код

require 'bigdecimal'
require 'bigdecimal/util'
class Inventory
attr_accessor :products
def initialize
@products = Hash.new
end
def register(name, price)
if name.length > 40 or price > 999.9 or price < 0.01
raise "Invalid parameters passed."
end
if products.has_key?(name)
raise "Name taken."
end
@products[name] = price
end
def register_coupon
end
def new_cart
Cart.new(@products)
end
end
class Cart
def initialize(products)
@products = products
@receipt = Hash.new
end
def add(name, quantity=1)
raise "Invalid parameters passed." unless @products.has_key?(name)
if @receipt.has_key(name)
quantity += @receipt[name]
end
raise "Invalid parameters passed." unless quantity > 0 or quantity < 99
@receipt[name] = quantity
end
def use
end
def total
@receipt.inject(BigDecimal.new("0.0")) do |result, (name, quantity)|
result += @products[name] * quantity
end
end
def invoice
end
end

Лог от изпълнението

FFFFFFFFFFFFFFFFFFF

Failures:

  1) Inventory with no discounts can tell the total price of all products
     Failure/Error: inventory.register 'The Best of Coltrane CD', '1.99'
     ArgumentError:
       comparison of String with Float failed
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `>'
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:39:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  2) Inventory with no discounts has some constraints on prices and counts
     Failure/Error: inventory.register 'Existing', '1.00'
     ArgumentError:
       comparison of String with Float failed
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `>'
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:48:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  3) Inventory with no discounts can print an invoice
     Failure/Error: inventory.register 'Green Tea',    '0.79'
     ArgumentError:
       comparison of String with Float failed
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `>'
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:65:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  4) Inventory with a 'buy X, get one free' promotion grants every nth item for free
     Failure/Error: inventory.register 'Gum', '1.00', get_one_free: 4
     ArgumentError:
       wrong number of arguments (3 for 2)
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:10:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:89:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  5) Inventory with a 'buy X, get one free' promotion grants 2 items free, when 8 purchased and every 3rd is free
     Failure/Error: inventory.register 'Gum', '1.00', get_one_free: 3
     ArgumentError:
       wrong number of arguments (3 for 2)
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:10:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:97:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  6) Inventory with a 'buy X, get one free' promotion shows the discount in the invoice
     Failure/Error: inventory.register 'Green Tea', '1.00', get_one_free: 3
     ArgumentError:
       wrong number of arguments (3 for 2)
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:10:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:105:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  7) Inventory with a '% off for every n' promotion gives % off for every group of n
     Failure/Error: inventory.register 'Sandwich', '1.00', package: {4 => 20}
     ArgumentError:
       wrong number of arguments (3 for 2)
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:10:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:128:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  8) Inventory with a '% off for every n' promotion does not discount for extra items, that don't fit in a group
     Failure/Error: inventory.register 'Sandwich', '0.50', package: {4 => 10}
     ArgumentError:
       wrong number of arguments (3 for 2)
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:10:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:138:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  9) Inventory with a '% off for every n' promotion shows the discount in the invoice
     Failure/Error: inventory.register 'Green Tea', '1.00', package: {4 => 10}
     ArgumentError:
       wrong number of arguments (3 for 2)
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:10:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:148:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  10) Inventory with a '% off of every item after the nth' promotion gives a discount for every item after the nth
     Failure/Error: inventory.register 'Coke', '2.00', threshold: {5 => 10}
     ArgumentError:
       wrong number of arguments (3 for 2)
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:10:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:171:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  11) Inventory with a '% off of every item after the nth' promotion does not give a discount if there are no more than n items in the cart
     Failure/Error: inventory.register 'Coke', '1.00', threshold: {10 => 20}
     ArgumentError:
       wrong number of arguments (3 for 2)
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:10:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:178:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  12) Inventory with a '% off of every item after the nth' promotion shows the discount in the ivnoice
     Failure/Error: inventory.register 'Green Tea', '1.00', threshold: {10 => 10}
     ArgumentError:
       wrong number of arguments (3 for 2)
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:10:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:191:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  13) Inventory with a '% off' coupon gives % off of the total
     Failure/Error: inventory.register 'Tea', '1.00'
     ArgumentError:
       comparison of String with Float failed
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `>'
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:214:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  14) Inventory with a '% off' coupon applies the coupon discount after product promotions
     Failure/Error: inventory.register 'Tea', '1.00', get_one_free: 6
     ArgumentError:
       wrong number of arguments (3 for 2)
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:10:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:224:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  15) Inventory with a '% off' coupon shows the discount in the invoice
     Failure/Error: inventory.register 'Green Tea', '1.00'
     ArgumentError:
       comparison of String with Float failed
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `>'
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:234:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  16) Inventory with an 'amount off' coupon subtracts the amount form the total
     Failure/Error: inventory.register 'Tea', '1.00'
     ArgumentError:
       comparison of String with Float failed
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `>'
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:255:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  17) Inventory with an 'amount off' coupon does not result in a negative total
     Failure/Error: inventory.register 'Tea', '1.00'
     ArgumentError:
       comparison of String with Float failed
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `>'
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:265:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  18) Inventory with an 'amount off' coupon shows the discount in the invoice
     Failure/Error: inventory.register 'Green Tea', '1.00'
     ArgumentError:
       comparison of String with Float failed
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `>'
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:11:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:275:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

  19) Inventory with multiple discounts can print an invoice
     Failure/Error: inventory.register 'Green Tea',    '2.79', get_one_free: 2
     ArgumentError:
       wrong number of arguments (3 for 2)
     # /tmp/d20111115-5847-1ux4yu1/solution.rb:10:in `register'
     # /tmp/d20111115-5847-1ux4yu1/spec.rb:296:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/homework/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

Finished in 0.55256 seconds
19 examples, 19 failures

Failed examples:

rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:38 # Inventory with no discounts can tell the total price of all products
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:47 # Inventory with no discounts has some constraints on prices and counts
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:64 # Inventory with no discounts can print an invoice
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:88 # Inventory with a 'buy X, get one free' promotion grants every nth item for free
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:96 # Inventory with a 'buy X, get one free' promotion grants 2 items free, when 8 purchased and every 3rd is free
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:104 # Inventory with a 'buy X, get one free' promotion shows the discount in the invoice
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:127 # Inventory with a '% off for every n' promotion gives % off for every group of n
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:137 # Inventory with a '% off for every n' promotion does not discount for extra items, that don't fit in a group
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:147 # Inventory with a '% off for every n' promotion shows the discount in the invoice
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:170 # Inventory with a '% off of every item after the nth' promotion gives a discount for every item after the nth
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:177 # Inventory with a '% off of every item after the nth' promotion does not give a discount if there are no more than n items in the cart
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:190 # Inventory with a '% off of every item after the nth' promotion shows the discount in the ivnoice
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:213 # Inventory with a '% off' coupon gives % off of the total
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:223 # Inventory with a '% off' coupon applies the coupon discount after product promotions
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:233 # Inventory with a '% off' coupon shows the discount in the invoice
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:254 # Inventory with an 'amount off' coupon subtracts the amount form the total
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:264 # Inventory with an 'amount off' coupon does not result in a negative total
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:274 # Inventory with an 'amount off' coupon shows the discount in the invoice
rspec /tmp/d20111115-5847-1ux4yu1/spec.rb:295 # Inventory with multiple discounts can print an invoice

История (1 версия и 0 коментара)

Виктор обнови решението на 07.11.2011 16:36 (преди над 12 години)

+require 'bigdecimal'
+require 'bigdecimal/util'
+
+class Inventory
+ attr_accessor :products
+ def initialize
+ @products = Hash.new
+ end
+
+ def register(name, price)
+ if name.length > 40 or price > 999.9 or price < 0.01
+ raise "Invalid parameters passed."
+ end
+ if products.has_key?(name)
+ raise "Name taken."
+ end
+ @products[name] = price
+ end
+
+ def register_coupon
+
+ end
+
+ def new_cart
+ Cart.new(@products)
+ end
+
+end
+
+class Cart
+
+ def initialize(products)
+ @products = products
+ @receipt = Hash.new
+ end
+
+ def add(name, quantity=1)
+ raise "Invalid parameters passed." unless @products.has_key?(name)
+
+ if @receipt.has_key(name)
+ quantity += @receipt[name]
+ end
+
+ raise "Invalid parameters passed." unless quantity > 0 or quantity < 99
+ @receipt[name] = quantity
+ end
+
+ def use
+
+ end
+
+ def total
+ @receipt.inject(BigDecimal.new("0.0")) do |result, (name, quantity)|
+ result += @products[name] * quantity
+ end
+ end
+
+ def invoice
+
+ end
+
+end