Програмиране с Ruby

Курс във Факултета по Математика и Информатика към СУ

Решение на Втора задача от Борислава Йорданова

Обратно към всички решения

Към профила на Борислава Йорданова

Резултати

  • 6 точки от тестове
  • 0 бонус точки
  • 6 точки общо
  • 21 успешни тест(а)
  • 1 неуспешни тест(а)

Код

class TodoList
attr_accessor :collection
include Enumerable
def initialize
@collection = []
end
def self.parse(text)
rows = text.split("\n")
created_todo_list = TodoList.new
fill_collection_with_tasks(created_todo_list, rows)
created_todo_list
end
def self.fill_collection_with_tasks(created_todo_list, rows)
rows.each do |row|
splited = row.split("|")
task = Task.new(splited[0], splited[1], splited[2], splited[3])
created_todo_list.collection << task
end
end
def each
collection.each { |task| yield task }
end
def filter(criteria)
filtered = TodoList.new
filtered.collection = @collection.select { |task| criteria.meets?(task) }
filtered
end
def adjoin(other_list)
joined_collection = @collection.concat other_list.collection
joined_todo_list = TodoList.new
joined_todo_list.collection = joined_collection
joined_todo_list
end
def tasks_todo
@collection.select { |task| task.status == :todo }.count
end
def tasks_in_progress
@collection.select { |task| task.status == :current }.count
end
def tasks_completed
@collection.select { |task| task.status == :done }.count
end
def completed?
@collection.all? { |task| task.status == :completed }
end
end
class Task
attr_accessor :status, :description, :priority, :tags
def initialize(status, description, priority, tags = nil)
@status = status.strip.downcase.to_sym
@description = description.strip
@priority = priority.strip.downcase.to_sym
@tags = tags.nil? ? [] : tags.split(", ").map(&:strip)
end
def status
@status
end
def description
@description
end
def priority
@priority
end
def tags
@tags
end
end
class Criteria
attr_accessor :filter
def initialize(filter)
@filter = filter
end
def meets?(task)
@filter.call(task)
end
def self.status(status)
Criteria.new ->(task) { task.status == status }
end
def self.priority(priority)
Criteria.new ->(task) { task.priority == priority }
end
def self.tags(tags)
Criteria.new ->(task) { (task.tags + tags).sort.uniq == task.tags.sort.uniq}
end
def &(other_criteria)
Criteria.new ->(task) { meets?(task) and other_criteria.meets?(task) }
end
def |(other_criteria)
Criteria.new ->(task) { meets?(task) or other_criteria.meets?(task) }
end
def !
Criteria.new ->(task) { not meets?(task) }
end
end

Лог от изпълнението

...............F......

Failures:

  1) TodoList checks if all tasks are completed
     Failure/Error: todo_list.filter(Criteria.status :done).completed?.should eq true
       
       expected: true
            got: false
       
       (compared using ==)
     # /tmp/d20131107-4393-15xegpy/spec.rb:132:in `block (2 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (3 levels) in <top (required)>'
     # ./lib/language/ruby/run_with_timeout.rb:5:in `block (2 levels) in <top (required)>'

Finished in 0.04112 seconds
22 examples, 1 failure

Failed examples:

rspec /tmp/d20131107-4393-15xegpy/spec.rb:130 # TodoList checks if all tasks are completed

История (1 версия и 0 коментара)

Борислава обнови решението на 06.11.2013 02:17 (преди над 10 години)

+class TodoList
+ attr_accessor :collection
+
+ include Enumerable
+
+ def initialize
+ @collection = []
+ end
+
+ def self.parse(text)
+ rows = text.split("\n")
+ created_todo_list = TodoList.new
+ fill_collection_with_tasks(created_todo_list, rows)
+ created_todo_list
+ end
+
+ def self.fill_collection_with_tasks(created_todo_list, rows)
+ rows.each do |row|
+ splited = row.split("|")
+ task = Task.new(splited[0], splited[1], splited[2], splited[3])
+ created_todo_list.collection << task
+ end
+ end
+
+ def each
+ collection.each { |task| yield task }
+ end
+
+ def filter(criteria)
+ filtered = TodoList.new
+ filtered.collection = @collection.select { |task| criteria.meets?(task) }
+ filtered
+ end
+
+ def adjoin(other_list)
+ joined_collection = @collection.concat other_list.collection
+ joined_todo_list = TodoList.new
+ joined_todo_list.collection = joined_collection
+ joined_todo_list
+ end
+
+ def tasks_todo
+ @collection.select { |task| task.status == :todo }.count
+ end
+
+ def tasks_in_progress
+ @collection.select { |task| task.status == :current }.count
+ end
+
+ def tasks_completed
+ @collection.select { |task| task.status == :done }.count
+ end
+
+ def completed?
+ @collection.all? { |task| task.status == :completed }
+ end
+end
+
+class Task
+ attr_accessor :status, :description, :priority, :tags
+
+ def initialize(status, description, priority, tags = nil)
+ @status = status.strip.downcase.to_sym
+ @description = description.strip
+ @priority = priority.strip.downcase.to_sym
+ @tags = tags.nil? ? [] : tags.split(", ").map(&:strip)
+ end
+
+ def status
+ @status
+ end
+
+ def description
+ @description
+ end
+
+ def priority
+ @priority
+ end
+
+ def tags
+ @tags
+ end
+end
+
+class Criteria
+ attr_accessor :filter
+
+ def initialize(filter)
+ @filter = filter
+ end
+
+ def meets?(task)
+ @filter.call(task)
+ end
+
+ def self.status(status)
+ Criteria.new ->(task) { task.status == status }
+ end
+
+ def self.priority(priority)
+ Criteria.new ->(task) { task.priority == priority }
+ end
+
+ def self.tags(tags)
+ Criteria.new ->(task) { (task.tags + tags).sort.uniq == task.tags.sort.uniq}
+ end
+
+ def &(other_criteria)
+ Criteria.new ->(task) { meets?(task) and other_criteria.meets?(task) }
+ end
+
+ def |(other_criteria)
+ Criteria.new ->(task) { meets?(task) or other_criteria.meets?(task) }
+ end
+
+ def !
+ Criteria.new ->(task) { not meets?(task) }
+ end
+end