rspec期望的日期等于

Question

I have an object called a work order that has the following schema:

# == Schema Information
#
# Table name: work_orders
#
#  id                 :integer          not null, primary key
#  due_on             :date
#  name               :string(255)

I also have a Json output of the object when it is displayed:

{
   id: 1,
   due_on: "2015-06-08",
   name: "my work order"
}

I am attempting to use rspec to confirm that date displayed by the json, matches the date of the object. This is something I have done 50 times for other objects...

I have the following:

exemplar = FactoryGirl.create(:work_order)
...
puts "Test: #{exemplar.due_on}"
expect(exemplar.name).to      eq(hash['name'])   #This works fine!
expect(exemplar.due_on).to    eq(hash['due_on']) #This blows up...

The output I get is:

Test: 2015-06-08

expected: "2015-06-08"
     got: Mon, 08 Jun 2015

What I do not understand is where the "Mon, 08 Jun 2015" is coming from. when I print out the date with the puts statement, it shows it as 2015-06-08...

Answer 1

Rails converts the string to a date object. 2015-06-08 is the output from Date#to_s :

d = Date.today
#=> Thu, 17 Jul 2014

puts d
#=> 2014-07-17

You can compare the date object to your string with either:

expect(exemplar.due_on.to_s).to eq(hash['due_on'])

or:

expect(exemplar.due_on).to eq(Date.parse(hash['due_on']))

or using Active Support Core Extensions :

expect(exemplar.due_on).to eq(hash['due_on'].to_date)