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require 'spec_helper'
describe HistoricalData do
before do
(1..12).each do |i|
HistoricalData.create!(date: Date.new(2014, i, 1), active_user_count: i * 100)
end
end
describe ".during" do
it "returns the historical data during the specified period" do
expect(HistoricalData.during(Date.new(2014, 1, 1)..Date.new(2014, 12, 31)).average(:active_user_count)).to eq(650)
end
end
describe ".up_until" do
it "returns the historical data up until the specified date" do
expect(HistoricalData.up_until(Date.new(2014, 6, 1)).average(:active_user_count)).to eq(350)
end
end
describe ".at" do
it "returns the historical data at the specified date" do
expect(HistoricalData.at(Date.new(2014, 8, 1)).active_user_count).to eq(800)
end
end
describe ".track!" do
before do
allow(User).to receive(:active).and_return([1,2,3,4,5])
end
it "creates a new historical data record" do
HistoricalData.track!
data = HistoricalData.last
expect(data.date).to eq(Date.today)
expect(data.active_user_count).to eq(5)
end
end
end
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