CSV file appearing backwards and RSpec failing - ruby-on-rails

Question

I am new to Ruby in general and cannot find a solution as to why my entries_2.csv is imported backwards. My other .csv import appears to be the same syntax and is working fine.
Here is the portion of my RSpec for .csv method:
require_relative "../models/address_book"
RSpec.describe AddressBook do
let(:book) {AddressBook.new}
def check_entry(entry, expected_name, expected_phone_number, expected_email)
expect(entry.name).to eq(expected_name)
expect(entry.phone_number).to eq(expected_phone_number)
expect(entry.email).to eq(expected_email)
end
describe "#import from csv" do
it "imports the correct number of entries" do
book.import_from_csv("entries.csv")
book_size = book.entries.size
expect(book_size).to eq 5
end
it "imports the 1rst entry" do
book.import_from_csv("entries.csv")
entry_one = book.entries[0]
check_entry(entry_one, "Bill", "555-555-4854", "bill#blocmail.com")
end
it "imports the 2nd entry" do
book.import_from_csv("entries.csv")
entry_two = book.entries[1]
check_entry(entry_two, "Bob", "555-555-5415", "bob#blocmail.com")
end
it "imports the 3rd entry" do
book.import_from_csv("entries.csv")
entry_three = book.entries[2]
check_entry(entry_three, "Joe", "555-555-3660", "joe#blocmail.com")
end
it "imports the 4th entry" do
book.import_from_csv("entries.csv")
entry_four = book.entries[3]
check_entry(entry_four, "Sally", "555-555-4646", "sally#blocmail.com")
end
it "imports the 5th entry" do
book.import_from_csv("entries.csv")
entry_five = book.entries[4]
check_entry(entry_five, "Sussie", "555-555-2036", "sussie#blocmail.com")
end
it "imports an additional 3 entries" do
book.import_from_csv("entries_2.csv")
book_size = book.entries.size
expect(book_size).to eq 3
end
it "imports 1rst entry into additional csv" do
book.import_from_csv("entries_2.csv")
entry_one = book.entries[0]
check_entry(entry_one, "Ralph", "222-222-2222", "ralph#comcast.net")
end
it "imports 2nd entry into additional csv" do
book.import_from_csv("entries_2.csv")
entry_two = book.entries[1]
check_entry(entry_two, "Will", "333-333-3333","Will#comcast.net")
end
it "imports 3rd entry into additional csv" do
book.import_from_csv("entries_2.csv")
entry_three = book.entries[2]
check_entry(entry_three, "Foobarr", "444-444-4444", "Foobarr#comcast.net")
end
end
Here is my two .csv files:
entries.csv
name,phone_number,email
Bill,555-555-4854,bill#blocmail.com
Bob,555-555-5415,bob#blocmail.com
Joe,555-555-3660,joe#blocmail.com
Sally,555-555-4646,sally#blocmail.com
Sussie,555-555-2036,sussie#blocmail.com
entries_2.csv
name,phone_number,email
Ralph,222-222-2222,ralph#comcast.net
Will,333-333-3333,Will#comcast.net
Foobarr,444-444-4444,Foobarr#comcast.net
Here is the error I am receiving when checking my RSpec:
Failures:
1) AddressBook#import from csv imports 1rst entry into additional csv
Failure/Error: expect(entry.name).to eq(expected_name)
expected: "Ralph"
got: "Foobarr"
(compared using ==)
# ./spec/address_book_spec.rb:8:in `check_entry'
# ./spec/address_book_spec.rb:142:in `block (3 levels) in <top (required)>'
2) AddressBook#import from csv imports 2nd entry into additional csv
Failure/Error: expect(entry.name).to eq(expected_name)
expected: "Will"
got: "Ralph"
(compared using ==)
# ./spec/address_book_spec.rb:8:in `check_entry'
# ./spec/address_book_spec.rb:150:in `block (3 levels) in <top (required)>'
3) AddressBook#import from csv imports 3rd entry into additional csv
Failure/Error: expect(entry.name).to eq(expected_name)
expected: "Foobarr"
got: "Will"
(compared using ==)
# ./spec/address_book_spec.rb:8:in `check_entry'
# ./spec/address_book_spec.rb:158:in `block (3 levels) in <top (required)>'
Finished in 0.05492 seconds (files took 0.2885 seconds to load)
17 examples, 3 failures
Why is my entries.csv RSpec correct, but my entries_2.csv is not? What am I missing.
Thanks

Answer 1

Assuming AddressBook is an ActiveRecord model with has_many :entries defined on it, the core issue you're running into is that relations are not guaranteed to be returned in any specific order, unless you explicitly request it. So this:
book.entries[0]
Is actually running:
SELECT * FROM entries WHERE address_book_id = ?
And then fetching the first element of that array. Since the above query is not ordered, the order you get back is arbitrary (as you're seeing; sometimes it reflects creation order, and sometimes it does not).
What you actually want is something which actually requests the records ordered in the sequence they were created in, like:
book.entries.order('entries.id ASC')[0]
Which you can also accomplish by adding order: 'id ASC' as a parameter to your has_many :entries definition.

Answer 2

I finally figured out the solution to my problem. CSV.parse sorts .csv files alphabetically, I did not know this. At this point I am unsure how I could manipulate that particular method, however, rearranging my names in my .csv file solved my problem.