So I need a helper function to created 'unprocessed tweets' similar to how I might receive them from the Twitter API gem, so I can test my models functionality under certain conditions.
To do this I added a helper function inside my objects describe, like so:
describe Tag, :type => :model do
# Helpers
###
def unprocessed_tweets(count, name, start_date, end_date)
tweets = []
count.times do |index|
tweet = OpenStruct.new
tweet.favorite_count = "3"
tweet.filter_level = "high"
tweet.retweet_count = "12"
tweet.text = "#{name}"
if index == 0
tweet.created_at = start_date
elsif index == (count-1)
tweet.created_at = end_date
else
tweet.created_at = start_date
end
tweets.push tweet
end
tweets
end
I also added a test to make sure my helpers doing as I expect in the long term:
it "has a helper for generated unprocessed tweets" do
tag_name = "justin"
start_date = '2015-09-12 2:31:32 0'
end_date = '2015-09-13 2:31:32 0'
tweets = unprocessed_tweets(3, tag_name, start_date, end_date)
expect(tweets.size).to eq 3
expect(tweets.first.favorite_count).to eq "3"
expect(tweets.first.created_at).to eq start_date
expect(tweets.last.created_at).to eq end_date
expect(tweets.last.text).to eq tag_name
end
Is this best practice for this?
You can create a new file in spec/support
called tweet_helpers.rb
and put this content in it:
module TweetHelpers
def unprocessed_tweets(count, name, start_date, end_date)
tweets = []
count.times do |index|
tweet = OpenStruct.new
tweet.favorite_count = "3"
tweet.filter_level = "high"
tweet.retweet_count = "12"
tweet.text = "#{name}"
if index == 0
tweet.created_at = start_date
elsif index == (count-1)
tweet.created_at = end_date
else
tweet.created_at = start_date
end
tweets.push tweet
end
tweets
end
end
And your spec test file should look like this:
require './spec/support/tweet_helpers'
RSpec.configure do |c|
c.include TweetHelpers
end
RSpec.describe "an example group" do
it "has a helper for generated unprocessed tweets" do
tag_name = "justin"
start_date = '2015-09-12 2:31:32 0'
end_date = '2015-09-13 2:31:32 0'
tweets = unprocessed_tweets(3, tag_name, start_date, end_date)
expect(tweets.size).to eq 3
expect(tweets.first.favorite_count).to eq "3"
expect(tweets.first.created_at).to eq start_date
expect(tweets.last.created_at).to eq end_date
expect(tweets.last.text).to eq tag_name
end
end
I think this is good practice to define your helper methods in a separate module rather than crowding the spec test file itself.
See this for more information and examples.
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